aerospike

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Published: Nov 29, 2024 License: Apache-2.0 Imports: 43 Imported by: 45

README

Aerospike Go Client v7

Aerospike Client Go Godoc Tests

An Aerospike library for Go.

This library is compatible with Go 1.20+ and supports the following operating systems: Linux, Mac OS X (Windows builds are possible, but untested).

Up-to-date documentation is available in the Godoc.

You can refer to the test files for idiomatic use cases.

Please refer to CHANGELOG.md for release notes, or if you encounter breaking changes.

Usage

The following is a very simple example of CRUD operations in an Aerospike database.

package main

import (
  "fmt"

  aero "github.com/aerospike/aerospike-client-go/v7"
)

// This is only for this example.
// Please handle errors properly.
func panicOnError(err error) {
  if err != nil {
    panic(err)
  }
}

func main() {
  // define a client to connect to
  client, err := aero.NewClient("127.0.0.1", 3000)
  panicOnError(err)

  key, err := aero.NewKey("test", "aerospike", "key")
  panicOnError(err)

  // define some bins with data
  bins := aero.BinMap{
    "bin1": 42,
    "bin2": "An elephant is a mouse with an operating system",
    "bin3": []interface{}{"Go", 2009},
  }

  // write the bins
  err = client.Put(nil, key, bins)
  panicOnError(err)

  // read it back!
  rec, err := client.Get(nil, key)
  panicOnError(err)

  // delete the key, and check if key exists
  existed, err := client.Delete(nil, key)
  panicOnError(err)
  fmt.Printf("Record existed before delete? %v\n", existed)
}

More examples illustrating the use of the API are located in the examples directory.

Details about the API are available in the docs directory.

Prerequisites

Go version v1.20+ is required.

To install the latest stable version of Go, visit http://golang.org/dl/

Aerospike Go client implements the wire protocol, and does not depend on the C client. It is goroutine friendly, and works asynchronously.

Supported operating systems:

  • Major Linux distributions (Ubuntu, Debian, Red Hat)
  • Mac OS X
  • Windows (untested)

Installation

  1. Install Go 1.21+ and setup your environment as Documented here.
  2. Get the client in your GOPATH : go get github.com/aerospike/aerospike-client-go/v7
  • To update the client library: go get -u github.com/aerospike/aerospike-client-go/v7

Using gopkg.in is also supported: go get -u gopkg.in/aerospike/aerospike-client-go.v7

Some Hints:
  • To run a go program directly: go run <filename.go>
  • to build: go build -o <output> <filename.go>
  • example: go build -tags as_proxy -o benchmark tools/benchmark/benchmark.go

Performance Tweaking

We are bending all efforts to improve the client's performance. In our reference benchmarks, Go client performs almost as good as the C client.

To read about performance variables, please refer to docs/performance.md

Tests

This library is packaged with a number of tests. Tests require Ginkgo and Gomega library.

Before running the tests, you need to update the dependencies:

$ go get .

To run all the test cases with race detection:

$ ginkgo -r -race

Examples

A variety of example applications are provided in the examples directory.

Tools

A variety of clones of original tools are provided in the tools directory. They show how to use more advanced features of the library to re-implement the same functionality in a more concise way.

Benchmarks

Benchmark utility is provided in the tools/benchmark directory. See the tools/benchmark/README.md for details.

API Documentation

A simple API documentation is available in the docs directory. The latest up-to-date docs can be found in Godoc.

Google App Engine

To build the library for App Engine, build it with the build tag app_engine. Aggregation functionality is not available in this build.

Reflection, and Object API

To make the library both flexible and fast, we had to integrate the reflection API (methods with [Get/Put/...]Object names) tightly in the library. In case you wanted to avoid mixing those API in your app inadvertently, you can use the build tag as_performance to remove those APIs from the build.

Proxy Client / DBAAS

To compile the client for the proxy server in our database-as-a-service (dbaas) environment, pass -tags as_proxy to the compiler on build.

License

The Aerospike Go Client is made available under the terms of the Apache License, Version 2, as stated in the file LICENSE.

Individual files may be made available under their own specific license, all compatible with Apache License, Version 2. Please see individual files for details.

Documentation

Overview

Package aerospike provides a client to connect and interact with an Aerospike cluster. This is the official Go implementation of the Aerospike Client.

Index

Examples

Constants

View Source
const (
	// BitWriteFlagsDefault allows create or update.
	BitWriteFlagsDefault = 0

	// BitWriteFlagsCreateOnly specifies that:
	// If the bin already exists, the operation will be denied.
	// If the bin does not exist, a new bin will be created.
	BitWriteFlagsCreateOnly = 1

	// BitWriteFlagsUpdateOnly specifies that:
	// If the bin already exists, the bin will be overwritten.
	// If the bin does not exist, the operation will be denied.
	BitWriteFlagsUpdateOnly = 2

	// BitWriteFlagsNoFail specifies not to raise error if operation is denied.
	BitWriteFlagsNoFail = 4

	// BitWriteFlagsPartial allows other valid operations to be committed if this operations is
	// denied due to flag constraints.
	BitWriteFlagsPartial = 8
)
View Source
const (
	// ListWriteFlagsDefault is the default behavior. It means:  Allow duplicate values and insertions at any index.
	ListWriteFlagsDefault = 0
	// ListWriteFlagsAddUnique means: Only add unique values.
	ListWriteFlagsAddUnique = 1
	// ListWriteFlagsInsertBounded means: Enforce list boundaries when inserting. Do not allow values to be inserted
	// at index outside current list boundaries.
	ListWriteFlagsInsertBounded = 2
	// ListWriteFlagsNoFail means: do not raise error if a list item fails due to write flag constraints.
	ListWriteFlagsNoFail = 4
	// ListWriteFlagsPartial means: allow other valid list items to be committed if a list item fails due to
	// write flag constraints.
	ListWriteFlagsPartial = 8
)
View Source
const (
	// MapWriteFlagsDefault is the Default. Allow create or update.
	MapWriteFlagsDefault = 0

	// MapWriteFlagsCreateOnly means: If the key already exists, the item will be denied.
	// If the key does not exist, a new item will be created.
	MapWriteFlagsCreateOnly = 1

	// MapWriteFlagsUpdateOnly means: If the key already exists, the item will be overwritten.
	// If the key does not exist, the item will be denied.
	MapWriteFlagsUpdateOnly = 2

	// MapWriteFlagsNoFail means: Do not raise error if a map item is denied due to write flag constraints.
	MapWriteFlagsNoFail = 4

	// MapWriteFlagsPartial means: Allow other valid map items to be committed if a map item is denied due to
	// write flag constraints.
	MapWriteFlagsPartial = 8
)

*

  • Map write bit flags.
  • Requires server versions >= 4.3.
View Source
const (
	// HLLWriteFlagsDefault is Default. Allow create or update.
	HLLWriteFlagsDefault = 0

	// HLLWriteFlagsCreateOnly behaves like the following:
	// If the bin already exists, the operation will be denied.
	// If the bin does not exist, a new bin will be created.
	HLLWriteFlagsCreateOnly = 1

	// HLLWriteFlagsUpdateOnly behaves like the following:
	// If the bin already exists, the bin will be overwritten.
	// If the bin does not exist, the operation will be denied.
	HLLWriteFlagsUpdateOnly = 2

	// HLLWriteFlagsNoFail does not raise error if operation is denied.
	HLLWriteFlagsNoFail = 4

	// HLLWriteFlagsAllowFold allows the resulting set to be the minimum of provided index bits.
	// Also, allow the usage of less precise HLL algorithms when minHash bits
	// of all participating sets do not match.
	HLLWriteFlagsAllowFold = 8
)
View Source
const (
	// LONG specifies that the query is expected to return more than 100 records per node. The server optimizes for a large record set in
	// the following ways:
	//
	// Allow query to be run in multiple threads using the server's query threading configuration.
	// Do not relax read consistency for AP namespaces.
	// Add the query to the server's query monitor.
	// Do not add the overall latency to the server's latency histogram.
	// Do not allow server timeouts.
	LONG = iota

	// Short specifies that the query is expected to return less than 100 records per node. The server optimizes for a small record set in
	// the following ways:
	// Always run the query in one thread and ignore the server's query threading configuration.
	// Allow query to be inlined directly on the server's service thread.
	// Relax read consistency for AP namespaces.
	// Do not add the query to the server's query monitor.
	// Add the overall latency to the server's latency histogram.
	// Allow server timeouts. The default server timeout for a short query is 1 second.
	SHORT

	// LONG_RELAX_AP will treat query as a LONG query, but relax read consistency for AP namespaces.
	// This value is treated exactly like LONG for server versions < 7.1.
	LONG_RELAX_AP
)
View Source
const (
	// UserAdmin allows to manages users and their roles.
	UserAdmin privilegeCode = "user-admin"

	// SysAdmin allows to manage indexes, user defined functions and server configuration.
	SysAdmin privilegeCode = "sys-admin"

	// DataAdmin allows to manage indicies and user defined functions.
	DataAdmin privilegeCode = "data-admin"

	// UDFAdmin allows to manage user defined functions.
	UDFAdmin privilegeCode = "udf-admin"

	// SIndexAdmin allows to manage indicies.
	SIndexAdmin privilegeCode = "sindex-admin"

	// ReadWriteUDF allows read, write and UDF transactions with the database.
	ReadWriteUDF privilegeCode = "read-write-udf"

	// ReadWrite allows read and write transactions with the database.
	ReadWrite privilegeCode = "read-write"

	// Read allows read transactions with the database.
	Read privilegeCode = "read"

	// Write allows write transactions with the database.
	Write privilegeCode = "write"

	// Truncate allow issuing truncate commands.
	Truncate privilegeCode = "truncate"
)

Pre-defined user roles.

View Source
const (
	// TTLServerDefault will default to namespace configuration variable "default-ttl" on the server.
	TTLServerDefault = 0
	// TTLDontExpire will never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3+ server.
	TTLDontExpire = math.MaxUint32
	// TTLDontUpdate will not change the record's ttl when record is written. Supported by Aerospike server versions >= 3.10.1
	TTLDontUpdate = math.MaxUint32 - 1
)

Variables

View Source
var (
	// DefaultBufferSize specifies the initial size of the connection buffer when it is created.
	// If not big enough (as big as the average record), it will be reallocated to size again
	// which will be more expensive.
	DefaultBufferSize = 64 * 1024 // 64 KiB

	// MaxBufferSize protects against allocating massive memory blocks
	// for buffers. Tweak this number if you are returning a lot of
	// large records in your requests.
	MaxBufferSize = 1024 * 1024 * 120 // 120 MiB

	// PoolCutOffBufferSize specifies the largest buffer size that will be pooled. Anything larger will be
	// allocated per request and thrown away afterwards to avoid allocating very big buffers.
	PoolCutOffBufferSize = 1024 * 1024 // 1MiB

	// MinBufferSize specifies the smallest buffer size that would be allocated for connections. Smaller buffer
	// requests will allocate at least this amount of memory. This protects against allocating too many small
	// buffers that would require reallocation and putting pressure on the GC.
	MinBufferSize = 8 * 1024 // 16 KiB
)
View Source
var (
	ErrServerNotAvailable              = newConstError(types.SERVER_NOT_AVAILABLE)
	ErrInvalidPartitionMap             = newConstError(types.INVALID_CLUSTER_PARTITION_MAP, "Partition map errors normally occur when the cluster has partitioned due to network anomaly or node crash, or is not configured properly. Refer to https://www.aerospike.com/docs/operations/configure for more information.")
	ErrKeyNotFound                     = newConstError(types.KEY_NOT_FOUND_ERROR)
	ErrRecordsetClosed                 = newConstError(types.RECORDSET_CLOSED)
	ErrConnectionPoolEmpty             = newConstError(types.NO_AVAILABLE_CONNECTIONS_TO_NODE, "connection pool is empty. This happens when no connections were available")
	ErrConnectionPoolExhausted         = newConstError(types.NO_AVAILABLE_CONNECTIONS_TO_NODE, "Connection pool is exhausted. This happens when all connection are in-use already, and opening more connections is not allowed due to the limits set in policy.ConnectionQueueSize and policy.LimitConnectionsToQueueSize")
	ErrTooManyConnectionsForNode       = newConstError(types.NO_AVAILABLE_CONNECTIONS_TO_NODE, "connection limit reached for this node. This value is controlled via ClientPolicy.LimitConnectionsToQueueSize")
	ErrTooManyOpeningConnections       = newConstError(types.NO_AVAILABLE_CONNECTIONS_TO_NODE, "too many connections are trying to open at once. This value is controlled via ClientPolicy.OpeningConnectionThreshold")
	ErrTimeout                         = newConstError(types.TIMEOUT, "command execution timed out on client: See `Policy.Timeout`")
	ErrNetTimeout                      = newConstError(types.TIMEOUT, "network timeout")
	ErrUDFBadResponse                  = newConstError(types.UDF_BAD_RESPONSE, "invalid UDF return value")
	ErrNoOperationsSpecified           = newConstError(types.INVALID_COMMAND, "no operations were passed to QueryExecute")
	ErrNoBinNamesAllowedInQueryExecute = newConstError(types.INVALID_COMMAND, "`Statement.BinNames` must be empty for QueryExecute")
	ErrFilteredOut                     = newConstError(types.FILTERED_OUT)
	ErrPartitionScanQueryNotSupported  = newConstError(types.PARAMETER_ERROR, "partition Scans/Queries are not supported by all nodes in this cluster")
	ErrScanTerminated                  = newConstError(types.SCAN_TERMINATED)
	ErrQueryTerminated                 = newConstError(types.QUERY_TERMINATED)
	ErrClusterIsEmpty                  = newConstError(types.INVALID_NODE_ERROR, "cluster is empty")
	ErrInvalidUser                     = newConstError(types.INVALID_USER)
	ErrNotAuthenticated                = newConstError(types.NOT_AUTHENTICATED)
	ErrNetwork                         = newConstError(types.NETWORK_ERROR)
	ErrInvalidObjectType               = newConstError(types.SERIALIZE_ERROR, "invalid type for result object. It should be of type struct pointer or addressable")
	ErrMaxRetriesExceeded              = newConstError(types.MAX_RETRIES_EXCEEDED, "command execution timed out on client: Exceeded number of retries. See `Policy.MaxRetries`.")
	ErrInvalidParam                    = newConstError(types.PARAMETER_ERROR)
	ErrLuaPoolEmpty                    = newConstError(types.COMMON_ERROR, "Error fetching a lua instance from pool")
)
View Source
var MapOrder = struct {
	// Map is not ordered. This is the default.
	UNORDERED mapOrderType // 0

	// Order map by key.
	KEY_ORDERED mapOrderType // 1

	// Order map by key, then value.
	KEY_VALUE_ORDERED mapOrderType // 3
}{mapOrderType{0, 0x40}, mapOrderType{1, 0x80}, mapOrderType{3, 0xc0}}

MapOrder defines map storage order.

View Source
var MapReturnType = struct {
	// NONE will will not return a result.
	NONE mapReturnType

	// INDEX will return key index order.
	//
	// 0 = first key
	// N = Nth key
	// -1 = last key
	INDEX mapReturnType

	// REVERSE_INDEX will return reverse key order.
	//
	// 0 = last key
	// -1 = first key
	REVERSE_INDEX mapReturnType

	// RANK will return value order.
	//
	// 0 = smallest value
	// N = Nth smallest value
	// -1 = largest value
	RANK mapReturnType

	// REVERSE_RANK will return reverse value order.
	//
	// 0 = largest value
	// N = Nth largest value
	// -1 = smallest value
	REVERSE_RANK mapReturnType

	// COUNT will return count of items selected.
	COUNT mapReturnType

	// KEY will return key for single key read and key list for range read.
	KEY mapReturnType

	// VALUE will return value for single key read and value list for range read.
	VALUE mapReturnType

	// KEY_VALUE will return key/value items. The possible return types are:
	//
	// map[interface{}]interface{} : Returned for unordered maps
	// []MapPair : Returned for range results where range order needs to be preserved.
	KEY_VALUE mapReturnType

	// EXISTS returns true if count > 0.
	EXISTS mapReturnType

	// UNORDERED_MAP returns an unordered map.
	UNORDERED_MAP mapReturnType

	// ORDERED_MAP returns an ordered map.
	ORDERED_MAP mapReturnType

	// INVERTED will invert meaning of map command and return values.  For example:
	// MapRemoveByKeyRange(binName, keyBegin, keyEnd, MapReturnType.KEY | MapReturnType.INVERTED)
	// With the INVERTED flag enabled, the keys outside of the specified key range will be removed and returned.
	INVERTED mapReturnType
}{
	0, 1, 2, 3, 4, 5, 6, 7, 8, 13, 16, 17, 0x10000,
}

MapReturnType defines the map return type. Type of data to return when selecting or removing items from the map.

View Source
var MapWriteMode = struct {
	// If the key already exists, the item will be overwritten.
	// If the key does not exist, a new item will be created.
	UPDATE *mapWriteMode

	// If the key already exists, the item will be overwritten.
	// If the key does not exist, the write will fail.
	UPDATE_ONLY *mapWriteMode

	// If the key already exists, the write will fail.
	// If the key does not exist, a new item will be created.
	CREATE_ONLY *mapWriteMode
}{
	&mapWriteMode{cdtMapOpTypePut, cdtMapOpTypePutItems},
	&mapWriteMode{cdtMapOpTypeReplace, cdtMapOpTypeReplaceItems},
	&mapWriteMode{cdtMapOpTypeAdd, cdtMapOpTypeAddItems},
}

MapWriteMode should only be used for server versions < 4.3. MapWriteFlags are recommended for server versions >= 4.3.

View Source
var UseNativeBoolTypeInReflection = false

UseNativeBoolTypeInReflection determines if Boolean values should be directly translated to native Boolean type in reflection API introduced in server version 5.6+. By default it keeps the old behavior, but can be set to true to opt in.

Deprecated: Will be removed in the next major version.

Functions

func Base64ToCDTContext

func Base64ToCDTContext(b64 string) ([]*CDTContext, Error)

Base64ToCDTContext converts a b64 encoded string back into a []*CDTContext.

func CreateClientWithPolicyAndHost

func CreateClientWithPolicyAndHost(typ ClientType, policy *ClientPolicy, hosts ...*Host) (ClientIfc, Error)

CreateClientWithPolicyAndHost generates a new Client of the specified type with the specified ClientPolicy and sets up the cluster using the provided hosts. If the policy is nil, the default relevant policy will be used.

func ExpFromBase64

func ExpFromBase64(str string) (*Expression, Error)

ExpFromBase64 creates an expression from an encoded base64 expression.

func GetNodeBatchRead

func GetNodeBatchRead(cluster *Cluster, key *Key, replica ReplicaPolicy, replicaSC ReplicaPolicy, prevNode *Node, sequence int, sequenceSC int) (*Node, Error)

GetNodeBatchRead returns a node for batch reads

func GetNodeBatchWrite

func GetNodeBatchWrite(cluster *Cluster, key *Key, replica ReplicaPolicy, prevNode *Node, sequence int) (*Node, Error)

GetNodeBatchWrite returns a node for batch Writes

func KeepConnection

func KeepConnection(err Error) bool

KeepConnection decides if a connection should be kept based on the error type.

func NewClient

func NewClient(hostname string, port int) (*Client, Error)

NewClient generates a new Client instance. The connection pool after connecting to the database is initially empty, and connections are established on a per need basis, which can be slow and time out some initial commands. It is recommended to call the client.WarmUp() method right after connecting to the database to fill up the connection pool to the required service level.

func NewClientWithPolicy

func NewClientWithPolicy(policy *ClientPolicy, hostname string, port int) (*Client, Error)

NewClientWithPolicy generates a new Client using the specified ClientPolicy. If the policy is nil, the default relevant policy will be used. The connection pool after connecting to the database is initially empty, and connections are established on a per need basis, which can be slow and time out some initial commands. It is recommended to call the client.WarmUp() method right after connecting to the database to fill up the connection pool to the required service level.

func NewClientWithPolicyAndHost

func NewClientWithPolicyAndHost(policy *ClientPolicy, hosts ...*Host) (*Client, Error)

NewClientWithPolicyAndHost generates a new Client with the specified ClientPolicy and sets up the cluster using the provided hosts. If the policy is nil, the default relevant policy will be used. The connection pool after connecting to the database is initially empty, and connections are established on a per need basis, which can be slow and time out some initial commands. It is recommended to call the client.WarmUp() method right after connecting to the database to fill up the connection pool to the required service level.

func NewCluster

func NewCluster(policy *ClientPolicy, hosts []*Host) (*Cluster, Error)

NewCluster generates a Cluster instance.

func NewConnection

func NewConnection(policy *ClientPolicy, host *Host) (*Connection, Error)

NewConnection creates a TLS connection on the network and returns the pointer. A minimum timeout of 2 seconds will always be applied. If the connection is not established in the specified timeout, an error will be returned

func NewHosts

func NewHosts(addresses ...string) ([]*Host, Error)

NewHosts initializes new host instances by a passed slice of addresses.

func NewKey

func NewKey(namespace string, setName string, key interface{}) (*Key, Error)

NewKey initializes a key from namespace, optional set name and user key. The set name and user defined key are converted to a digest before sending to the server. The server handles record identifiers by digest only.

func NewKeyWithDigest

func NewKeyWithDigest(namespace string, setName string, key interface{}, digest []byte) (*Key, Error)

NewKeyWithDigest initializes a key from namespace, optional set name and user key. The server handles record identifiers by digest only.

func PartitionForRead

func PartitionForRead(cluster *Cluster, policy *BasePolicy, key *Key) (*Partition, Error)

PartitionForRead returns a partition for read purposes

func PartitionForWrite

func PartitionForWrite(cluster *Cluster, policy *BasePolicy, key *Key) (*Partition, Error)

PartitionForWrite returns a partition for write purposes

func SetAerospikeTag

func SetAerospikeTag(tag string)

SetAerospikeTag sets the bin tag to the specified tag. This will be useful for when a user wants to use the same tag name for two different concerns. For example, one will be able to use the same tag name for both json and aerospike bin name.

func SetLuaPath

func SetLuaPath(lpath string)

SetLuaPath sets the Lua interpreter path to files This path is used to load UDFs for QueryAggregate command

Types

type AdminCommand

type AdminCommand struct {
	// contains filtered or unexported fields
}

AdminCommand allows managing user access to the server

func NewAdminCommand

func NewAdminCommand(buf []byte) *AdminCommand

NewAdminCommand returns an AdminCommand object.

func (*AdminCommand) QueryRole

func (acmd *AdminCommand) QueryRole(conn *Connection, policy *AdminPolicy, roleName string) (*Role, Error)

QueryRole returns role information.

func (*AdminCommand) QueryRoles

func (acmd *AdminCommand) QueryRoles(conn *Connection, policy *AdminPolicy) ([]*Role, Error)

QueryRoles returns role information for all roles.

func (*AdminCommand) QueryUser

func (acmd *AdminCommand) QueryUser(conn *Connection, policy *AdminPolicy, user string) (*UserRoles, Error)

QueryUser returns user information.

func (*AdminCommand) QueryUsers

func (acmd *AdminCommand) QueryUsers(conn *Connection, policy *AdminPolicy) ([]*UserRoles, Error)

QueryUsers returns user information for all users.

type AdminPolicy

type AdminPolicy struct {

	// User administration command socket timeout.
	// Default is 2 seconds.
	Timeout time.Duration
}

AdminPolicy contains attributes used for user administration commands.

func NewAdminPolicy

func NewAdminPolicy() *AdminPolicy

NewAdminPolicy generates a new AdminPolicy with default values.

type AerospikeBlob

type AerospikeBlob interface {
	// EncodeBlob returns a byte slice representing the encoding of the
	// receiver for transmission to a Decoder, usually of the same
	// concrete type.
	EncodeBlob() ([]byte, error)
}

AerospikeBlob interface allows the user to write a conversion function from their value to []bytes.

type AerospikeError

type AerospikeError struct {

	// Node where the error occurred
	Node *Node

	// ResultCode determines the type of error
	ResultCode types.ResultCode

	// InDoubt determines if the command was sent to the server, but
	// there is doubt if the server received and executed the command
	// and changed the data. Only applies to commands that change data
	InDoubt bool

	// Iteration determies on which retry the error occurred
	Iteration int
	// contains filtered or unexported fields
}

AerospikeError implements Error interface for aerospike specific errors. All errors returning from the library are of this type. Errors resulting from Go's stdlib are not translated to this type, unless they are a net.Timeout error. Refer to errors_test.go for examples. To be able to check for error type, you could use the idiomatic errors.Is and errors.As patterns:

if errors.Is(err, as.ErrTimeout) {
    ...
}

or

if errors.Is(err, &as.AerospikeError{ResultCode: ast.PARAMETER_ERROR}) {
    ...
}

or

if err.Matches(ast.TIMEOUT, ast.NETWORK_ERROR, ast.PARAMETER_ERROR) {
    ...
}

or

ae := &as.AerospikeError{}
if errors.As(err, &ae) {
    println(ae.ResultCode)
}

func (*AerospikeError) As

func (ase *AerospikeError) As(target interface{}) bool

As implements the interface for errors.As function.

func (*AerospikeError) Error

func (ase *AerospikeError) Error() string

Error implements the error interface

func (*AerospikeError) Is

func (ase *AerospikeError) Is(e error) bool

Is compares an error with the AerospikeError. If the error is not of type *AerospikeError, it will return false. Otherwise, it will compare ResultCode and Node (if it exists), and will return a result accordingly. If passed error's InDoubt is set to true, the InDoubt property will also be checked. You should not check if the error's InDoubt is false, since it is not checked when the passed error's InDoubt is false.

func (*AerospikeError) IsInDoubt

func (ase *AerospikeError) IsInDoubt() bool

IsInDoubt signifies that the write operation may have gone through on the server but the client is not able to confirm that due an error.

func (*AerospikeError) Matches

func (ase *AerospikeError) Matches(rcs ...types.ResultCode) bool

Matches returns true if the error or any of its wrapped errors contains any of the passed results codes. For convenience, it will return false if the error is nil.

func (*AerospikeError) Trace

func (ase *AerospikeError) Trace() string

Trace returns a stack trace of where the error originates from

func (*AerospikeError) Unwrap

func (ase *AerospikeError) Unwrap() error

Unwrap will return the error wrapped inside the error, or nil.

type AuthMode

type AuthMode int

AuthMode determines authentication mode.

const (
	// AuthModeInternal uses internal authentication only when user/password defined. Hashed password is stored
	// on the server. Do not send clear password. This is the default.
	AuthModeInternal AuthMode = iota

	// AuthModeExternal uses external authentication (like LDAP) when user/password defined. Specific external authentication is
	// configured on server.  If TLSConfig is defined, sends clear password on node login via TLS.
	// Will return an error if TLSConfig is not defined.
	AuthModeExternal

	// AuthModePKI allows authentication and authorization based on a certificate. No user name or
	// password needs to be configured. Requires TLS and a client certificate.
	// Requires server version 5.7.0+
	AuthModePKI
)

type BasePolicy

type BasePolicy struct {
	// FilterExpression is the optional Filter Expression. Supported on Server v5.2+
	FilterExpression *Expression

	// ReadModeAP indicates read policy for AP (availability) namespaces.
	ReadModeAP ReadModeAP //= ONE

	// ReadModeSC indicates read policy for SC (strong consistency) namespaces.
	ReadModeSC ReadModeSC //= SESSION;

	// TotalTimeout specifies total transaction timeout.
	//
	// The TotalTimeout is tracked on the client and also sent to the server along
	// with the transaction in the wire protocol. The client will most likely
	// timeout first, but the server has the capability to Timeout the transaction.
	//
	// If TotalTimeout is not zero and TotalTimeout is reached before the transaction
	// completes, the transaction will abort with TotalTimeout error.
	//
	// If TotalTimeout is zero, there will be no time limit and the transaction will retry
	// on network timeouts/errors until MaxRetries is exceeded. If MaxRetries is exceeded, the
	// transaction also aborts with Timeout error.
	//
	// Default for scan/query: 0 (no time limit and rely on MaxRetries)
	//
	// Default for all other commands: 1000ms
	TotalTimeout time.Duration

	// SocketTimeout determines network timeout for each attempt.
	//
	// If SocketTimeout is not zero and SocketTimeout is reached before an attempt completes,
	// the Timeout above is checked. If Timeout is not exceeded, the transaction
	// is retried. If both SocketTimeout and Timeout are non-zero, SocketTimeout must be less
	// than or equal to Timeout, otherwise Timeout will also be used for SocketTimeout.
	//
	// Default: 30s
	SocketTimeout time.Duration

	// MaxRetries determines the maximum number of retries before aborting the current transaction.
	// The initial attempt is not counted as a retry.
	//
	// If MaxRetries is exceeded, the transaction will abort with an error.
	//
	// WARNING: Database writes that are not idempotent (such as AddOp)
	// should not be retried because the write operation may be performed
	// multiple times if the client timed out previous transaction attempts.
	// It's important to use a distinct WritePolicy for non-idempotent
	// writes which sets maxRetries = 0;
	//
	// Default for read: 2 (initial attempt + 2 retries = 3 attempts)
	//
	// Default for write: 0 (no retries)
	//
	// Default for partition scan or query with nil filter: 5
	// (6 attempts. See ScanPolicy comments.)
	MaxRetries int //= 2;

	// ReadTouchTTLPercent determines how record TTL (time to live) is affected on reads. When enabled, the server can
	// efficiently operate as a read-based LRU cache where the least recently used records are expired.
	// The value is expressed as a percentage of the TTL sent on the most recent write such that a read
	// within this interval of the record’s end of life will generate a touch.
	//
	// For example, if the most recent write had a TTL of 10 hours and read_touch_ttl_percent is set to
	// 80, the next read within 8 hours of the record's end of life (equivalent to 2 hours after the most
	// recent write) will result in a touch, resetting the TTL to another 10 hours.
	//
	// Values:
	//
	// 0 : Use server config default-read-touch-ttl-pct for the record's namespace/set.
	// -1 : Do not reset record TTL on reads.
	// 1 - 100 : Reset record TTL on reads when within this percentage of the most recent write TTL.
	// Default: 0
	ReadTouchTTLPercent int32

	// SleepBetweenRtries determines the duration to sleep between retries.  Enter zero to skip sleep.
	// This field is ignored when maxRetries is zero.
	// This field is also ignored in async mode.
	//
	// The sleep only occurs on connection errors and server timeouts
	// which suggest a node is down and the cluster is reforming.
	// The sleep does not occur when the client's socketTimeout expires.
	//
	// Reads do not have to sleep when a node goes down because the cluster
	// does not shut out reads during cluster reformation.  The default for
	// reads is zero.
	//
	// The default for writes is also zero because writes are not retried by default.
	// Writes need to wait for the cluster to reform when a node goes down.
	// Immediate write retries on node failure have been shown to consistently
	// result in errors.  If maxRetries is greater than zero on a write, then
	// sleepBetweenRetries should be set high enough to allow the cluster to
	// reform (>= 500ms).
	SleepBetweenRetries time.Duration //= 1ms;

	// SleepMultiplier specifies the multiplying factor to be used for exponential backoff during retries.
	// Default to (1.0); Only values greater than 1 are valid.
	SleepMultiplier float64 //= 1.0;

	// ExitFastOnExhaustedConnectionPool determines if a command that tries to get a
	// connection from the connection pool will wait and retry in case the pool is
	// exhausted until a connection becomes available (or the TotalTimeout is reached).
	// If set to true, an error will be return immediately.
	// If set to false, getting a connection will be retried.
	// This only applies if LimitConnectionsToQueueSize is set to true and the number of open connections to a node has reached ConnectionQueueSize.
	// The default is false
	ExitFastOnExhaustedConnectionPool bool // false

	// SendKey determines to whether send user defined key in addition to hash digest on both reads and writes.
	// If the key is sent on a write, the key will be stored with the record on
	// the server.
	//
	// If the key is sent on a read, the server will generate the hash digest from
	// the key and validate that digest with the digest sent by the client. Unless
	// this is the explicit intent of the developer, avoid sending the key on reads.
	// The default is to not send the user defined key.
	SendKey bool // = false

	// UseCompression uses zlib compression on command buffers sent to the server and responses received
	// from the server when the buffer size is greater than 128 bytes.
	//
	// This option will increase cpu and memory usage (for extra compressed buffers),but
	// decrease the size of data sent over the network.
	//
	// Default: false
	UseCompression bool // = false

	// ReplicaPolicy specifies the algorithm used to determine the target node for a partition derived from a key
	// or requested in a scan/query.
	// Write commands are not affected by this setting, because all writes are directed
	// to the node containing the key's master partition.
	// Default to sending read commands to the node containing the key's master partition.
	ReplicaPolicy ReplicaPolicy
}

BasePolicy encapsulates parameters for transaction policy attributes used in all database operation calls.

func NewPolicy

func NewPolicy() *BasePolicy

NewPolicy generates a new BasePolicy instance with default values.

func (*BasePolicy) GetBasePolicy

func (p *BasePolicy) GetBasePolicy() *BasePolicy

GetBasePolicy returns embedded BasePolicy in all types that embed this struct.

type BatchDelete

type BatchDelete struct {
	BatchRecord

	// Policy os the optional write Policy.
	Policy *BatchDeletePolicy
}

BatchDelete encapsulates a batch delete operation.

func NewBatchDelete

func NewBatchDelete(policy *BatchDeletePolicy, key *Key) *BatchDelete

NewBatchDelete creates a batch delete operation.

type BatchDeletePolicy

type BatchDeletePolicy struct {
	// FilterExpression is optional expression filter. If FilterExpression exists and evaluates to false, the specific batch key
	// request is not performed and BatchRecord.ResultCode is set to type.FILTERED_OUT.
	// Default: nil
	FilterExpression *Expression

	// Desired consistency guarantee when committing a transaction on the server. The default
	// (COMMIT_ALL) indicates that the server should wait for master and all replica commits to
	// be successful before returning success to the client.
	// Default: CommitLevel.COMMIT_ALL
	CommitLevel CommitLevel //= COMMIT_ALL

	// Qualify how to handle record deletes based on record generation. The default (NONE)
	// indicates that the generation is not used to restrict deletes.
	// Default: GenerationPolicy.NONE
	GenerationPolicy GenerationPolicy //= GenerationPolicy.NONE;

	// Expected generation. Generation is the number of times a record has been modified
	// (including creation) on the server. This field is only relevant when generationPolicy
	// is not NONE.
	// Default: 0
	Generation uint32

	// If the transaction results in a record deletion, leave a tombstone for the record.
	// This prevents deleted records from reappearing after node failures.
	// Valid for Aerospike Server Enterprise Edition only.
	// Default: false (do not tombstone deleted records).
	DurableDelete bool

	// Send user defined key in addition to hash digest.
	// If true, the key will be stored with the tombstone record on the server.
	// Default: false (do not send the user defined key)
	SendKey bool
}

BatchDeletePolicy is used in batch delete commands.

func NewBatchDeletePolicy

func NewBatchDeletePolicy() *BatchDeletePolicy

NewBatchDeletePolicy returns a default BatchDeletePolicy.

type BatchPolicy

type BatchPolicy struct {
	BasePolicy

	// Maximum number of concurrent batch request goroutines to server nodes at any point in time.
	// If there are 16 node/namespace combinations requested and ConcurrentNodes is 8,
	// then batch requests will be made for 8 node/namespace combinations in concurrent goroutines.
	// When a request completes, a new request will be issued until all 16 goroutines are complete.
	//
	// Values:
	// 1: Issue batch requests sequentially.  This mode has a performance advantage for small
	// to medium sized batch sizes because requests can be issued in the main transaction goroutine.
	// This is the default.
	// 0: Issue all batch requests in concurrent goroutines.  This mode has a performance
	// advantage for extremely large batch sizes because each node can process the request
	// immediately.  The downside is extra goroutines will need to be created (or taken from
	// a goroutine pool).
	// > 0: Issue up to ConcurrentNodes batch requests in concurrent goroutines.  When a request
	// completes, a new request will be issued until all goroutines are complete.  This mode
	// prevents too many concurrent goroutines being created for large cluster implementations.
	// The downside is extra goroutines will still need to be created (or taken from a goroutine pool).
	ConcurrentNodes int // = 1

	// Allow batch to be processed immediately in the server's receiving thread when the server
	// deems it to be appropriate.  If false, the batch will always be processed in separate
	// transaction goroutines.  This field is only relevant for the new batch index protocol.
	//
	// For batch exists or batch reads of smaller sized records (<= 1K per record), inline
	// processing will be significantly faster on "in memory" namespaces.  The server disables
	// inline processing on disk based namespaces regardless of this policy field.
	//
	// Inline processing can introduce the possibility of unfairness because the server
	// can process the entire batch before moving onto the next command.
	AllowInline bool //= true

	// Allow batch to be processed immediately in the server's receiving thread for SSD
	// namespaces. If false, the batch will always be processed in separate service threads.
	// Server versions before 6.0 ignore this field.
	//
	// Inline processing can introduce the possibility of unfairness because the server
	// can process the entire batch before moving onto the next command.
	//
	// Default: false
	AllowInlineSSD bool // = false

	// Should all batch keys be attempted regardless of errors. This field is used on both
	// the client and server. The client handles node specific errors and the server handles
	// key specific errors.
	//
	// If true, every batch key is attempted regardless of previous key specific errors.
	// Node specific errors such as timeouts stop keys to that node, but keys directed at
	// other nodes will continue to be processed.
	//
	// If false, the server will stop the batch to its node on most key specific errors.
	// The exceptions are types.KEY_NOT_FOUND_ERROR and types.FILTERED_OUT which never stop the batch.
	// The client will stop the entire batch on node specific errors for sync commands
	// that are run in sequence (MaxConcurrentThreads == 1). The client will not stop
	// the entire batch for async commands or sync commands run in parallel.
	//
	// Server versions &lt; 6.0 do not support this field and treat this value as false
	// for key specific errors.
	//
	// Default: true
	RespondAllKeys bool //= true;

	// AllowPartialResults determines if the results for some nodes should be returned in case
	// some nodes encounter an error. The result for the unreceived records will be nil.
	// The returned records will be safe to use, since only fully received data will be parsed
	// and set.
	//
	// This flag is only supported for BatchGet and BatchGetHeader methods. BatchGetComplex always returns
	// partial results by design.
	AllowPartialResults bool //= false
}

BatchPolicy encapsulates parameters for policy attributes used in write operations. This object is passed into methods where database writes can occur.

func NewBatchPolicy

func NewBatchPolicy() *BatchPolicy

NewBatchPolicy initializes a new BatchPolicy instance with default parameters.

func NewReadBatchPolicy

func NewReadBatchPolicy() *BatchPolicy

NewReadBatchPolicy initializes a new BatchPolicy instance for reads.

func NewWriteBatchPolicy

func NewWriteBatchPolicy() *BatchPolicy

NewWriteBatchPolicy initializes a new BatchPolicy instance for writes.

type BatchRead

type BatchRead struct {
	BatchRecord

	// Optional read policy.
	Policy *BatchReadPolicy

	// BinNames specifies the Bins to retrieve for this key.
	// BinNames are mutually exclusive with Ops.
	BinNames []string

	// ReadAllBins defines what data should be read from the record.
	// If true, ignore binNames and read all bins.
	// If false and binNames are set, read specified binNames.
	// If false and binNames are not set, read record header (generation, expiration) only.
	ReadAllBins bool //= false

	// Ops specifies the operations to perform for every key.
	// Ops are mutually exclusive with BinNames.
	// A binName can be emulated with `GetOp(binName)`
	// Supported by server v5.6.0+.
	Ops []*Operation
}

BatchRead specifies the Key and bin names used in batch read commands where variable bins are needed for each key.

func NewBatchRead

func NewBatchRead(policy *BatchReadPolicy, key *Key, binNames []string) *BatchRead

NewBatchRead defines a key and bins to retrieve in a batch operation.

func NewBatchReadHeader

func NewBatchReadHeader(policy *BatchReadPolicy, key *Key) *BatchRead

NewBatchReadHeader defines a key to retrieve the record headers only in a batch operation.

func NewBatchReadOps

func NewBatchReadOps(policy *BatchReadPolicy, key *Key, ops ...*Operation) *BatchRead

NewBatchReadOps defines a key and bins to retrieve in a batch operation, including expressions.

func (*BatchRead) String

func (br *BatchRead) String() string

String implements the Stringer interface.

type BatchReadPolicy

type BatchReadPolicy struct {
	// FilterExpression is the optional expression filter. If FilterExpression exists and evaluates to false, the specific batch key
	// request is not performed and BatchRecord.ResultCode is set to types.FILTERED_OUT.
	//
	// Default: nil
	FilterExpression *Expression

	// ReadModeAP indicates read policy for AP (availability) namespaces.
	ReadModeAP ReadModeAP //= ONE

	// ReadModeSC indicates read policy for SC (strong consistency) namespaces.
	ReadModeSC ReadModeSC //= SESSION;

	// ReadTouchTTLPercent determines how record TTL (time to live) is affected on reads. When enabled, the server can
	// efficiently operate as a read-based LRU cache where the least recently used records are expired.
	// The value is expressed as a percentage of the TTL sent on the most recent write such that a read
	// within this interval of the record’s end of life will generate a touch.
	//
	// For example, if the most recent write had a TTL of 10 hours and read_touch_ttl_percent is set to
	// 80, the next read within 8 hours of the record's end of life (equivalent to 2 hours after the most
	// recent write) will result in a touch, resetting the TTL to another 10 hours.
	//
	// Values:
	//
	// 0 : Use server config default-read-touch-ttl-pct for the record's namespace/set.
	// -1 : Do not reset record TTL on reads.
	// 1 - 100 : Reset record TTL on reads when within this percentage of the most recent write TTL.
	// Default: 0
	ReadTouchTTLPercent int32
}

BatchReadPolicy attributes used in batch read commands.

func NewBatchReadPolicy

func NewBatchReadPolicy() *BatchReadPolicy

NewBatchReadPolicy returns a policy instance for BatchRead commands.

type BatchRecord

type BatchRecord struct {
	// Key.
	Key *Key

	// Record result after batch command has completed.  Will be nil if record was not found
	// or an error occurred. See ResultCode.
	Record *Record

	// ResultCode for this returned record. See types.ResultCode.
	// If not OK, the record will be nil.
	ResultCode types.ResultCode

	// Err encapsulates the possible error chain for this key
	Err Error

	// InDoubt signifies the possiblity that the write transaction may have completed even though an error
	// occurred for this record. This may be the case when a client error occurs (like timeout)
	// after the command was sent to the server.
	InDoubt bool
	// contains filtered or unexported fields
}

BatchRecord encasulates the Batch key and record result.

func (*BatchRecord) BatchRec

func (br *BatchRecord) BatchRec() *BatchRecord

BatchRec returns the embedded batch record in the interface.

func (*BatchRecord) String

func (br *BatchRecord) String() string

String implements the Stringer interface.

type BatchRecordIfc

type BatchRecordIfc interface {
	// Returns the BatchRecord
	BatchRec() *BatchRecord

	String() string
	// contains filtered or unexported methods
}

BatchRecordIfc is the interface type to encapsulate BatchRead, BatchWrite and BatchUDF commands.

type BatchUDF

type BatchUDF struct {
	BatchRecord

	// Policy is the optional UDF Policy.
	Policy *BatchUDFPolicy

	// PackageName specify the lua module name.
	PackageName string

	// FunctionName specify Lua function name.
	FunctionName string

	// FunctionArgs specify optional arguments to lua function.
	FunctionArgs []Value
	// contains filtered or unexported fields
}

BatchUDF encapsulates a batch user defined function operation.

func NewBatchUDF

func NewBatchUDF(policy *BatchUDFPolicy, key *Key, packageName, functionName string, functionArgs ...Value) *BatchUDF

NewBatchUDF creates a batch UDF operation.

type BatchUDFPolicy

type BatchUDFPolicy struct {
	// Optional expression filter. If FilterExpression exists and evaluates to false, the specific batch key
	// request is not performed and BatchRecord.ResultCode is set to types.FILTERED_OUT.
	//
	// Default: nil
	FilterExpression *Expression

	// Desired consistency guarantee when committing a transaction on the server. The default
	// (COMMIT_ALL) indicates that the server should wait for master and all replica commits to
	// be successful before returning success to the client.
	//
	// Default: CommitLevel.COMMIT_ALL
	CommitLevel CommitLevel //= COMMIT_ALL

	// Expiration determines record expiration in seconds. Also known as TTL (Time-To-Live).
	// Seconds record will live before being removed by the server.
	// Expiration values:
	// TTLServerDefault (0): Default to namespace configuration variable "default-ttl" on the server.
	// TTLDontExpire (MaxUint32): Never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3+ server
	// TTLDontUpdate (MaxUint32 - 1): Do not change ttl when record is written. Supported by Aerospike server versions >= 3.10.1
	// > 0: Actual expiration in seconds.
	Expiration uint32

	// DurableDelete leaves a tombstone for the record if the transaction results in a record deletion.
	// This prevents deleted records from reappearing after node failures.
	// Valid for Aerospike Server Enterprise Edition 3.10+ only.
	DurableDelete bool

	// SendKey determines to whether send user defined key in addition to hash digest on both reads and writes.
	// If true and the UDF writes a record, the key will be stored with the record on the server.
	// The default is to not send the user defined key.
	SendKey bool // = false
}

BatchUDFPolicy attributes used in batch UDF execute commands.

func NewBatchUDFPolicy

func NewBatchUDFPolicy() *BatchUDFPolicy

NewBatchUDFPolicy returns a policy instance for Batch UDF commands.

type BatchWrite

type BatchWrite struct {
	BatchRecord

	// Policy is an optional write Policy.
	Policy *BatchWritePolicy

	// Ops specify required operations for this key.
	Ops []*Operation
}

BatchWrite encapsulates a batch key and read/write operations with write policy.

func NewBatchWrite

func NewBatchWrite(policy *BatchWritePolicy, key *Key, ops ...*Operation) *BatchWrite

NewBatchWrite initializesa policy, batch key and read/write operations. ANy GetOp() is not allowed because it returns a variable number of bins and makes it difficult (sometimes impossible) to lineup operations with results. Instead, use GetBinOp(string) for each bin name.

type BatchWritePolicy

type BatchWritePolicy struct {
	// FilterExpression is optional expression filter. If FilterExpression exists and evaluates to false, the specific batch key
	// request is not performed and BatchRecord#resultCode is set to types.FILTERED_OUT.
	//
	// Default: nil
	FilterExpression *Expression

	// RecordExistsAction qualifies how to handle writes where the record already exists.
	RecordExistsAction RecordExistsAction //= RecordExistsAction.UPDATE;

	// Desired consistency guarantee when committing a transaction on the server. The default
	// (COMMIT_ALL) indicates that the server should wait for master and all replica commits to
	// be successful before returning success to the client.
	//
	// Default: CommitLevel.COMMIT_ALL
	CommitLevel CommitLevel //= COMMIT_ALL

	// GenerationPolicy qualifies how to handle record writes based on record generation. The default (NONE)
	// indicates that the generation is not used to restrict writes.
	//
	// The server does not support this field for UDF execute() calls. The read-modify-write
	// usage model can still be enforced inside the UDF code itself.
	//
	// Default: GenerationPolicy.NONE
	// indicates that the generation is not used to restrict writes.
	GenerationPolicy GenerationPolicy //= GenerationPolicy.NONE;

	// Expected generation. Generation is the number of times a record has been modified
	// (including creation) on the server. If a write operation is creating a record,
	// the expected generation would be 0. This field is only relevant when
	// generationPolicy is not NONE.
	//
	// The server does not support this field for UDF execute() calls. The read-modify-write
	// usage model can still be enforced inside the UDF code itself.
	//
	// Default: 0
	Generation uint32

	// Expiration determines record expiration in seconds. Also known as TTL (Time-To-Live).
	// Seconds record will live before being removed by the server.
	// Expiration values:
	// TTLServerDefault (0): Default to namespace configuration variable "default-ttl" on the server.
	// TTLDontExpire (MaxUint32): Never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3+ server
	// TTLDontUpdate (MaxUint32 - 1): Do not change ttl when record is written. Supported by Aerospike server versions >= 3.10.1
	// > 0: Actual expiration in seconds.
	Expiration uint32

	// DurableDelete leaves a tombstone for the record if the transaction results in a record deletion.
	// This prevents deleted records from reappearing after node failures.
	// Valid for Aerospike Server Enterprise Edition 3.10+ only.
	DurableDelete bool

	// SendKey determines to whether send user defined key in addition to hash digest on both reads and writes.
	// If the key is sent on a write, the key will be stored with the record on
	// the server.
	// The default is to not send the user defined key.
	SendKey bool // = false
}

BatchWritePolicy attributes used in batch write commands.

func NewBatchWritePolicy

func NewBatchWritePolicy() *BatchWritePolicy

NewBatchWritePolicy returns a policy instance for BatchWrite commands.

type Bin

type Bin struct {
	// Bin name. Current limit is 14 characters.
	Name string

	// Bin value.
	Value Value
}

Bin encapsulates a field name/value pair.

func NewBin

func NewBin(name string, value interface{}) *Bin

NewBin generates a new Bin instance, specifying bin name and string value. For servers configured as "single-bin", enter an empty name.

func (*Bin) String

func (bn *Bin) String() string

String implements Stringer interface.

type BinMap

type BinMap map[string]interface{}

BinMap is used to define a map of bin names to values.

type BitOverflowAction

type BitOverflowAction int

BitOverflowAction specifies the action to take when bitwise add/subtract results in overflow/underflow.

const (
	// BitOverflowActionFail specifies to fail operation with error.
	BitOverflowActionFail BitOverflowAction = 0

	// BitOverflowActionSaturate specifies that in add/subtract overflows/underflows, set to max/min value.
	// Example: MAXINT + 1 = MAXINT
	BitOverflowActionSaturate BitOverflowAction = 2

	// BitOverflowActionWrap specifies that in add/subtract overflows/underflows, wrap the value.
	// Example: MAXINT + 1 = -1
	BitOverflowActionWrap BitOverflowAction = 4
)

type BitPolicy

type BitPolicy struct {
	// contains filtered or unexported fields
}

BitPolicy determines the Bit operation policy.

func DefaultBitPolicy

func DefaultBitPolicy() *BitPolicy

DefaultBitPolicy will return the default BitPolicy

func NewBitPolicy

func NewBitPolicy(flags int) *BitPolicy

NewBitPolicy will return a BitPolicy will provided flags.

type BitResizeFlags

type BitResizeFlags int

BitResizeFlags specifies the bitwise operation flags for resize.

const (
	// BitResizeFlagsDefault specifies the defalt flag.
	BitResizeFlagsDefault BitResizeFlags = 0

	// BitResizeFlagsFromFront Adds/removes bytes from the beginning instead of the end.
	BitResizeFlagsFromFront BitResizeFlags = 1

	// BitResizeFlagsGrowOnly will only allow the []byte size to increase.
	BitResizeFlagsGrowOnly BitResizeFlags = 2

	// BitResizeFlagsShrinkOnly will only allow the []byte size to decrease.
	BitResizeFlagsShrinkOnly BitResizeFlags = 4
)

type BoolValue

type BoolValue bool

BoolValue encapsulates a boolean value. Supported by Aerospike server v5.6+ only.

func (BoolValue) EstimateSize

func (vb BoolValue) EstimateSize() (int, Error)

EstimateSize returns the size of the BoolValue in wire protocol.

func (BoolValue) GetObject

func (vb BoolValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (BoolValue) GetType

func (vb BoolValue) GetType() int

GetType returns wire protocol value type.

func (BoolValue) String

func (vb BoolValue) String() string

String implements Stringer interface.

type BufferEx

type BufferEx interface {
	WriteInt64(num int64) int
	WriteUint64(num uint64) int
	WriteInt32(num int32) int
	WriteUint32(num uint32) int
	WriteInt16(num int16) int
	WriteUint16(num uint16) int
	WriteFloat32(float float32) int
	WriteFloat64(float float64) int
	WriteBool(b bool) int
	WriteByte(b byte)
	WriteString(s string) (int, Error)
	Write(b []byte) (int, Error)
}

BufferEx is a specialized buffer interface for aerospike client.

type BytesValue

type BytesValue []byte

BytesValue encapsulates an array of bytes.

func NewBlobValue

func NewBlobValue(object AerospikeBlob) BytesValue

NewBlobValue accepts an AerospikeBlob interface, and automatically converts it to a BytesValue. If Encode returns an err, it will panic.

func NewBytesValue

func NewBytesValue(bytes []byte) BytesValue

NewBytesValue generates a ByteValue instance.

func (BytesValue) EstimateSize

func (vl BytesValue) EstimateSize() (int, Error)

EstimateSize returns the size of the BytesValue in wire protocol.

func (BytesValue) GetObject

func (vl BytesValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (BytesValue) GetType

func (vl BytesValue) GetType() int

GetType returns wire protocol value type.

func (BytesValue) String

func (vl BytesValue) String() string

String implements Stringer interface.

type CDTContext

type CDTContext struct {
	Id    int
	Value Value
}

CDTContext defines Nested CDT context. Identifies the location of nested list/map to apply the operation. for the current level. An array of CTX identifies location of the list/map on multiple levels on nesting.

func CtxListIndex

func CtxListIndex(index int) *CDTContext

CtxListIndex defines Lookup list by index offset. If the index is negative, the resolved index starts backwards from end of list. If an index is out of bounds, a parameter error will be returned. Examples: 0: First item. 4: Fifth item. -1: Last item. -3: Third to last item.

func CtxListIndexCreate

func CtxListIndexCreate(index int, order ListOrderType, pad bool) *CDTContext

CtxListIndexCreate list with given type at index offset, given an order and pad.

func CtxListRank

func CtxListRank(rank int) *CDTContext

CtxListRank defines Lookup list by rank. 0 = smallest value N = Nth smallest value -1 = largest value

func CtxListValue

func CtxListValue(key Value) *CDTContext

CtxListValue defines Lookup list by value.

func CtxMapIndex

func CtxMapIndex(index int) *CDTContext

CtxMapIndex defines Lookup map by index offset. If the index is negative, the resolved index starts backwards from end of list. If an index is out of bounds, a parameter error will be returned. Examples: 0: First item. 4: Fifth item. -1: Last item. -3: Third to last item.

func CtxMapKey

func CtxMapKey(key Value) *CDTContext

CtxMapKey defines Lookup map by key.

func CtxMapKeyCreate

func CtxMapKeyCreate(key Value, order mapOrderType) *CDTContext

CtxMapKeyCreate creates map with given type at map key.

func CtxMapRank

func CtxMapRank(rank int) *CDTContext

CtxMapRank defines Lookup map by rank. 0 = smallest value N = Nth smallest value -1 = largest value

func CtxMapValue

func CtxMapValue(key Value) *CDTContext

CtxMapValue defines Lookup map by value.

func (*CDTContext) String

func (ctx *CDTContext) String() string

String implements the Stringer interface for CDTContext

type Client

type Client struct {

	// DefaultPolicy is used for all read commands without a specific policy.
	DefaultPolicy *BasePolicy
	// DefaultBatchPolicy is the default parent policy used in batch read commands. Base policy fields
	// include socketTimeout, totalTimeout, maxRetries, etc...
	DefaultBatchPolicy *BatchPolicy
	// DefaultBatchReadPolicy is the default read policy used in batch operate commands.
	DefaultBatchReadPolicy *BatchReadPolicy
	// DefaultBatchWritePolicy is the default write policy used in batch operate commands.
	// Write policy fields include generation, expiration, durableDelete, etc...
	DefaultBatchWritePolicy *BatchWritePolicy
	// DefaultBatchDeletePolicy is the default delete policy used in batch delete commands.
	DefaultBatchDeletePolicy *BatchDeletePolicy
	// DefaultBatchUDFPolicy is the default user defined function policy used in batch UDF execute commands.
	DefaultBatchUDFPolicy *BatchUDFPolicy
	// DefaultWritePolicy is used for all write commands without a specific policy.
	DefaultWritePolicy *WritePolicy
	// DefaultScanPolicy is used for all scan commands without a specific policy.
	DefaultScanPolicy *ScanPolicy
	// DefaultQueryPolicy is used for all query commands without a specific policy.
	DefaultQueryPolicy *QueryPolicy
	// DefaultAdminPolicy is used for all security commands without a specific policy.
	DefaultAdminPolicy *AdminPolicy
	// DefaultInfoPolicy is used for all info commands without a specific policy.
	DefaultInfoPolicy *InfoPolicy
	// contains filtered or unexported fields
}

Client encapsulates an Aerospike cluster. All database operations are available against this object.

func (*Client) Add

func (clnt *Client) Add(policy *WritePolicy, key *Key, binMap BinMap) Error

Add adds integer bin values to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call only works for integer values. If the policy is nil, the default relevant policy will be used.

Example
key, err := as.NewKey(*namespace, "test", "addkey")
if err != nil {
	log.Fatal(err)
}

if _, err = client.Delete(nil, key); err != nil {
	log.Fatal(err)
}

// Add to a non-existing record/bin, should create a record
bin := as.NewBin("bin", 10)
if err = client.AddBins(nil, key, bin); err != nil {
	log.Fatal(err)
}

// Add to 5 to the original 10
bin = as.NewBin("bin", 5)
if err = client.AddBins(nil, key, bin); err != nil {
	log.Fatal(err)
}

// Check the result
record, err := client.Get(nil, key, bin.Name)
if err != nil {
	log.Fatal(err)
}
fmt.Println(record.Bins["bin"])

// Demonstrate add and get combined.
bin = as.NewBin("bin", 30)
if record, err = client.Operate(nil, key, as.AddOp(bin), as.GetOp()); err != nil {
	log.Fatal(err)
}

fmt.Println(record.Bins["bin"])
Output:

15
45

func (*Client) AddBins

func (clnt *Client) AddBins(policy *WritePolicy, key *Key, bins ...*Bin) Error

AddBins works the same as Add, but avoids BinMap allocation and iteration.

func (*Client) Append

func (clnt *Client) Append(policy *WritePolicy, key *Key, binMap BinMap) Error

Append appends bin value's string to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call only works for string and []byte values. If the policy is nil, the default relevant policy will be used.

Example
key, err := as.NewKey(*namespace, "test", "appendkey")
if err != nil {
	log.Fatal(err)
}

if _, err = client.Delete(nil, key); err != nil {
	log.Fatal(err)
}

// Create by appending to non-existing value
bin1 := as.NewBin("myBin", "Hello")
if err = client.AppendBins(nil, key, bin1); err != nil {
	log.Fatal(err)
}

// Append World
bin2 := as.NewBin("myBin", " World")
if err = client.AppendBins(nil, key, bin2); err != nil {
	log.Fatal(err)
}

record, err := client.Get(nil, key)
if err != nil {
	log.Fatal(err)
}

fmt.Println(record.Bins["myBin"])
Output:

Hello World

func (*Client) AppendBins

func (clnt *Client) AppendBins(policy *WritePolicy, key *Key, bins ...*Bin) Error

AppendBins works the same as Append, but avoids BinMap allocation and iteration.

func (*Client) BatchDelete

func (clnt *Client) BatchDelete(policy *BatchPolicy, deletePolicy *BatchDeletePolicy, keys []*Key) ([]*BatchRecord, Error)

BatchDelete deletes records for specified keys. If a key is not found, the corresponding result BatchRecord.ResultCode will be types.KEY_NOT_FOUND_ERROR.

Requires server version 6.0+

func (*Client) BatchExecute

func (clnt *Client) BatchExecute(policy *BatchPolicy, udfPolicy *BatchUDFPolicy, keys []*Key, packageName string, functionName string, args ...Value) ([]*BatchRecord, Error)

BatchExecute will read/write multiple records for specified batch keys in one batch call. This method allows different namespaces/bins for each key in the batch. The returned records are located in the same list.

BatchRecord can be *BatchRead, *BatchWrite, *BatchDelete or *BatchUDF.

Requires server version 6.0+

func (*Client) BatchExists

func (clnt *Client) BatchExists(policy *BatchPolicy, keys []*Key) ([]bool, Error)

BatchExists determines if multiple record keys exist in one batch request. The returned boolean array is in positional order with the original key array order. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGet

func (clnt *Client) BatchGet(policy *BatchPolicy, keys []*Key, binNames ...string) ([]*Record, Error)

BatchGet reads multiple record headers and bins for specified keys in one batch request. The returned records are in positional order with the original key array order. If a key is not found, the positional record will be nil. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGetComplex

func (clnt *Client) BatchGetComplex(policy *BatchPolicy, records []*BatchRead) Error

BatchGetComplex reads multiple records for specified batch keys in one batch call. This method allows different namespaces/bins to be requested for each key in the batch. The returned records are located in the same list. If the BatchRead key field is not found, the corresponding record field will be nil. The policy can be used to specify timeouts and maximum concurrent goroutines. This method requires Aerospike Server version >= 3.6.0.

func (*Client) BatchGetHeader

func (clnt *Client) BatchGetHeader(policy *BatchPolicy, keys []*Key) ([]*Record, Error)

BatchGetHeader reads multiple record header data for specified keys in one batch request. The returned records are in positional order with the original key array order. If a key is not found, the positional record will be nil. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGetObjects

func (clnt *Client) BatchGetObjects(policy *BatchPolicy, keys []*Key, objects []interface{}) (found []bool, err Error)

BatchGetObjects reads multiple record headers and bins for specified keys in one batch request. The returned objects are in positional order with the original key array order. If a key is not found, the positional object will not change, and the positional found boolean will be false. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGetOperate

func (clnt *Client) BatchGetOperate(policy *BatchPolicy, keys []*Key, ops ...*Operation) ([]*Record, Error)

BatchGetOperate reads multiple records for specified keys using read operations in one batch call. The returned records are in positional order with the original key array order. If a key is not found, the positional record will be nil.

If a batch request to a node fails, the entire batch is cancelled.

func (*Client) BatchOperate

func (clnt *Client) BatchOperate(policy *BatchPolicy, records []BatchRecordIfc) Error

BatchOperate will read/write multiple records for specified batch keys in one batch call. This method allows different namespaces/bins for each key in the batch. The returned records are located in the same list.

BatchRecord can be *BatchRead, *BatchWrite, *BatchDelete or *BatchUDF.

Requires server version 6.0+

func (*Client) ChangePassword

func (clnt *Client) ChangePassword(policy *AdminPolicy, user string, password string) Error

ChangePassword changes a user's password. Clear-text password will be hashed using bcrypt before sending to server.

func (*Client) Close

func (clnt *Client) Close()

Close closes all client connections to database server nodes.

func (*Client) Cluster

func (clnt *Client) Cluster() *Cluster

Cluster exposes the cluster object to the user

func (*Client) CreateComplexIndex

func (clnt *Client) CreateComplexIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
	binName string,
	indexType IndexType,
	indexCollectionType IndexCollectionType,
	ctx ...*CDTContext,
) (*IndexTask, Error)

CreateComplexIndex creates a secondary index, with the ability to put indexes on bin containing complex data types, e.g: Maps and Lists. This asynchronous server call will return before the command is complete. The user can optionally wait for command completion by using the returned IndexTask instance. This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) CreateIndex

func (clnt *Client) CreateIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
	binName string,
	indexType IndexType,
) (*IndexTask, Error)

CreateIndex creates a secondary index. This asynchronous server call will return before the command is complete. The user can optionally wait for command completion by using the returned IndexTask instance. This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) CreateRole

func (clnt *Client) CreateRole(policy *AdminPolicy, roleName string, privileges []Privilege, whitelist []string, readQuota, writeQuota uint32) Error

CreateRole creates a user-defined role. Quotas require server security configuration "enable-quotas" to be set to true. Pass 0 for quota values for no limit.

func (*Client) CreateUser

func (clnt *Client) CreateUser(policy *AdminPolicy, user string, password string, roles []string) Error

CreateUser creates a new user with password and roles. Clear-text password will be hashed using bcrypt before sending to server.

func (*Client) Delete

func (clnt *Client) Delete(policy *WritePolicy, key *Key) (bool, Error)

Delete deletes a record for specified key. The policy specifies the transaction timeout. If the policy is nil, the default relevant policy will be used.

func (*Client) DisableMetrics added in v7.3.0

func (clnt *Client) DisableMetrics()

DisableMetrics disables the cluster transaction metrics gathering.

func (*Client) DropIndex

func (clnt *Client) DropIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
) Error

DropIndex deletes a secondary index. It will block until index is dropped on all nodes. This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) DropRole

func (clnt *Client) DropRole(policy *AdminPolicy, roleName string) Error

DropRole removes a user-defined role.

func (*Client) DropUser

func (clnt *Client) DropUser(policy *AdminPolicy, user string) Error

DropUser removes a user from the cluster.

func (*Client) EnableMetrics added in v7.3.0

func (clnt *Client) EnableMetrics(policy *MetricsPolicy)

EnableMetrics enables the cluster transaction metrics gathering. If the parameters for the histogram in the policy are the different from the one already on the cluster, the metrics will be reset.

func (*Client) Execute

func (clnt *Client) Execute(policy *WritePolicy, key *Key, packageName string, functionName string, args ...Value) (interface{}, Error)

Execute executes a user defined function on server and return results. The function operates on a single record. The package name is used to locate the udf file location:

udf file = <server udf dir>/<package name>.lua

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) ExecuteUDF

func (clnt *Client) ExecuteUDF(policy *QueryPolicy,
	statement *Statement,
	packageName string,
	functionName string,
	functionArgs ...Value,
) (*ExecuteTask, Error)

ExecuteUDF applies user defined function on records that match the statement filter. Records are not returned to the client. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned ExecuteTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) ExecuteUDFNode

func (clnt *Client) ExecuteUDFNode(policy *QueryPolicy,
	node *Node,
	statement *Statement,
	packageName string,
	functionName string,
	functionArgs ...Value,
) (*ExecuteTask, Error)

ExecuteUDFNode applies user defined function on records that match the statement filter on the specified node. Records are not returned to the client. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned ExecuteTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) Exists

func (clnt *Client) Exists(policy *BasePolicy, key *Key) (bool, Error)

Exists determine if a record key exists. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) Get

func (clnt *Client) Get(policy *BasePolicy, key *Key, binNames ...string) (*Record, Error)

Get reads a record header and bins for specified key. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GetDefaultAdminPolicy

func (clnt *Client) GetDefaultAdminPolicy() *AdminPolicy

DefaultAdminPolicy returns corresponding default policy from the client

func (*Client) GetDefaultBatchDeletePolicy

func (clnt *Client) GetDefaultBatchDeletePolicy() *BatchDeletePolicy

DefaultBatchDeletePolicy returns corresponding default policy from the client

func (*Client) GetDefaultBatchPolicy

func (clnt *Client) GetDefaultBatchPolicy() *BatchPolicy

DefaultBatchPolicy returns corresponding default policy from the client

func (*Client) GetDefaultBatchReadPolicy added in v7.4.0

func (clnt *Client) GetDefaultBatchReadPolicy() *BatchReadPolicy

DefaultBatchReadPolicy returns corresponding default policy from the client

func (*Client) GetDefaultBatchUDFPolicy

func (clnt *Client) GetDefaultBatchUDFPolicy() *BatchUDFPolicy

DefaultBatchUDFPolicy returns corresponding default policy from the client

func (*Client) GetDefaultBatchWritePolicy

func (clnt *Client) GetDefaultBatchWritePolicy() *BatchWritePolicy

DefaultBatchWritePolicy returns corresponding default policy from the client

func (*Client) GetDefaultInfoPolicy

func (clnt *Client) GetDefaultInfoPolicy() *InfoPolicy

DefaultInfoPolicy returns corresponding default policy from the client

func (*Client) GetDefaultPolicy

func (clnt *Client) GetDefaultPolicy() *BasePolicy

DefaultPolicy returns corresponding default policy from the client

func (*Client) GetDefaultQueryPolicy

func (clnt *Client) GetDefaultQueryPolicy() *QueryPolicy

DefaultQueryPolicy returns corresponding default policy from the client

func (*Client) GetDefaultScanPolicy

func (clnt *Client) GetDefaultScanPolicy() *ScanPolicy

DefaultScanPolicy returns corresponding default policy from the client

func (*Client) GetDefaultWritePolicy

func (clnt *Client) GetDefaultWritePolicy() *WritePolicy

DefaultWritePolicy returns corresponding default policy from the client

func (*Client) GetHeader

func (clnt *Client) GetHeader(policy *BasePolicy, key *Key) (*Record, Error)

GetHeader reads a record generation and expiration only for specified key. Bins are not read. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GetNodeNames

func (clnt *Client) GetNodeNames() []string

GetNodeNames returns a list of active server node names in the cluster.

func (*Client) GetNodes

func (clnt *Client) GetNodes() []*Node

GetNodes returns an array of active server nodes in the cluster.

func (*Client) GetObject

func (clnt *Client) GetObject(policy *BasePolicy, key *Key, obj interface{}) Error

GetObject reads a record for specified key and puts the result into the provided object. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GrantPrivileges

func (clnt *Client) GrantPrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) Error

GrantPrivileges grant privileges to a user-defined role.

func (*Client) GrantRoles

func (clnt *Client) GrantRoles(policy *AdminPolicy, user string, roles []string) Error

GrantRoles adds roles to user's list of roles.

func (*Client) IsConnected

func (clnt *Client) IsConnected() bool

IsConnected determines if the client is ready to talk to the database server cluster.

func (*Client) ListUDF

func (clnt *Client) ListUDF(policy *BasePolicy) ([]*UDF, Error)

ListUDF lists all packages containing user defined functions in the server. This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) MetricsEnabled added in v7.3.0

func (clnt *Client) MetricsEnabled() bool

MetricsEnabled returns true if metrics are enabled for the cluster.

func (*Client) Operate

func (clnt *Client) Operate(policy *WritePolicy, key *Key, operations ...*Operation) (*Record, Error)

Operate performs multiple read/write operations on a single key in one batch request. An example would be to add an integer value to an existing record and then read the result, all in one database call.

If the policy is nil, the default relevant policy will be used.

func (*Client) Prepend

func (clnt *Client) Prepend(policy *WritePolicy, key *Key, binMap BinMap) Error

Prepend prepends bin value's string to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call works only for string and []byte values. If the policy is nil, the default relevant policy will be used.

func (*Client) PrependBins

func (clnt *Client) PrependBins(policy *WritePolicy, key *Key, bins ...*Bin) Error

PrependBins works the same as Prepend, but avoids BinMap allocation and iteration.

func (*Client) Put

func (clnt *Client) Put(policy *WritePolicy, key *Key, binMap BinMap) Error

Put writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. If the policy is nil, the default relevant policy will be used.

func (*Client) PutBins

func (clnt *Client) PutBins(policy *WritePolicy, key *Key, bins ...*Bin) Error

PutBins writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This method avoids using the BinMap allocation and iteration and is lighter on GC. If the policy is nil, the default relevant policy will be used.

func (*Client) PutObject

func (clnt *Client) PutObject(policy *WritePolicy, key *Key, obj interface{}) (err Error)

PutObject writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. If the policy is nil, the default relevant policy will be used. A struct can be tagged to influence the way the object is put in the database:

 type Person struct {
		TTL uint32 `asm:"ttl"`
		RecGen uint32 `asm:"gen"`
		Name string `as:"name"`
 		Address string `as:"desc,omitempty"`
 		Age uint8 `as:",omitempty"`
 		Password string `as:"-"`
 }

Tag `as:` denotes Aerospike fields. The first value will be the alias for the field. `,omitempty` (without any spaces between the comma and the word) will act like the json package, and will not send the value of the field to the database if the value is zero value. Tag `asm:` denotes Aerospike Meta fields, and includes ttl and generation values. If a tag is marked with `-`, it will not be sent to the database at all. Note: Tag `as` can be replaced with any other user-defined tag via the function `SetAerospikeTag`.

func (*Client) Query

func (clnt *Client) Query(policy *QueryPolicy, statement *Statement) (*Recordset, Error)

Query executes a query and returns a Recordset. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryAggregate

func (clnt *Client) QueryAggregate(policy *QueryPolicy, statement *Statement, packageName, functionName string, functionArgs ...Value) (*Recordset, Error)

QueryAggregate executes a Map/Reduce query and returns the results. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryExecute

func (clnt *Client) QueryExecute(policy *QueryPolicy,
	writePolicy *WritePolicy,
	statement *Statement,
	ops ...*Operation,
) (*ExecuteTask, Error)

QueryExecute applies operations on records that match the statement filter. Records are not returned to the client. This asynchronous server call will return before the command is complete. The user can optionally wait for command completion by using the returned ExecuteTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryNode

func (clnt *Client) QueryNode(policy *QueryPolicy, node *Node, statement *Statement) (*Recordset, Error)

QueryNode executes a query on a specific node and returns a recordset. The caller can concurrently pop records off the channel through the record channel.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryNodeObjects

func (clnt *Client) QueryNodeObjects(policy *QueryPolicy, node *Node, statement *Statement, objChan interface{}) (*Recordset, Error)

QueryNodeObjects executes a query on a specific node and marshals the records into the given channel. The caller can concurrently pop records off the channel.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryObjects

func (clnt *Client) QueryObjects(policy *QueryPolicy, statement *Statement, objChan interface{}) (*Recordset, Error)

QueryObjects executes a query on all nodes in the cluster and marshals the records into the given channel. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop objects.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryPartitionObjects

func (clnt *Client) QueryPartitionObjects(policy *QueryPolicy, statement *Statement, objChan interface{}, partitionFilter *PartitionFilter) (*Recordset, Error)

QueryPartitionObjects executes a query for specified partitions and returns a recordset. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 4.9+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryPartitions

func (clnt *Client) QueryPartitions(policy *QueryPolicy, statement *Statement, partitionFilter *PartitionFilter) (*Recordset, Error)

QueryPartitions executes a query for specified partitions and returns a recordset. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 4.9+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryRole

func (clnt *Client) QueryRole(policy *AdminPolicy, role string) (res *Role, err Error)

QueryRole retrieves privileges for a given role.

func (*Client) QueryRoles

func (clnt *Client) QueryRoles(policy *AdminPolicy) (res []*Role, err Error)

QueryRoles retrieves all roles and their privileges.

func (*Client) QueryUser

func (clnt *Client) QueryUser(policy *AdminPolicy, user string) (res *UserRoles, err Error)

QueryUser retrieves roles for a given user.

func (*Client) QueryUsers

func (clnt *Client) QueryUsers(policy *AdminPolicy) (res []*UserRoles, err Error)

QueryUsers retrieves all users and their roles.

func (*Client) RegisterUDF

func (clnt *Client) RegisterUDF(policy *WritePolicy, udfBody []byte, serverPath string, language Language) (*RegisterTask, Error)

RegisterUDF registers a package containing user defined functions with server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RegisterTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RegisterUDFFromFile

func (clnt *Client) RegisterUDFFromFile(policy *WritePolicy, clientPath string, serverPath string, language Language) (*RegisterTask, Error)

RegisterUDFFromFile reads a file from file system and registers the containing a package user defined functions with the server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RegisterTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RemoveUDF

func (clnt *Client) RemoveUDF(policy *WritePolicy, udfName string) (*RemoveTask, Error)

RemoveUDF removes a package containing user defined functions in the server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RemoveTask instance.

This method is only supported by Aerospike 3+ servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RevokePrivileges

func (clnt *Client) RevokePrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) Error

RevokePrivileges revokes privileges from a user-defined role.

func (*Client) RevokeRoles

func (clnt *Client) RevokeRoles(policy *AdminPolicy, user string, roles []string) Error

RevokeRoles removes roles from user's list of roles.

func (*Client) ScanAll

func (clnt *Client) ScanAll(apolicy *ScanPolicy, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanAll reads all records in specified namespace and set from all nodes. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanAllObjects

func (clnt *Client) ScanAllObjects(apolicy *ScanPolicy, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanAllObjects reads all records in specified namespace and set from all nodes. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanNode

func (clnt *Client) ScanNode(apolicy *ScanPolicy, node *Node, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanNode reads all records in specified namespace and set for one node only. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanNodeObjects

func (clnt *Client) ScanNodeObjects(apolicy *ScanPolicy, node *Node, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanNodeObjects reads all records in specified namespace and set for one node only, and marshalls the results into the objects of the provided channel in Recordset. If the policy is nil, the default relevant policy will be used. The resulting records will be marshalled into the objChan. objChan will be closed after all the records are read.

func (*Client) ScanPartitionObjects

func (clnt *Client) ScanPartitionObjects(apolicy *ScanPolicy, objChan interface{}, partitionFilter *PartitionFilter, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanPartitionObjects Reads records in specified namespace, set and partition filter. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If partitionFilter is nil, all partitions will be scanned. If the policy is nil, the default relevant policy will be used. This method is only supported by Aerospike 4.9+ servers.

func (*Client) ScanPartitions

func (clnt *Client) ScanPartitions(apolicy *ScanPolicy, partitionFilter *PartitionFilter, namespace string, setName string, binNames ...string) (*Recordset, Error)

ScanPartitions Read records in specified namespace, set and partition filter. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If partitionFilter is nil, all partitions will be scanned. If the policy is nil, the default relevant policy will be used. This method is only supported by Aerospike 4.9+ servers.

func (*Client) SetDefaultAdminPolicy

func (clnt *Client) SetDefaultAdminPolicy(policy *AdminPolicy)

DefaultAdminPolicy returns corresponding default policy from the client

func (*Client) SetDefaultBatchDeletePolicy

func (clnt *Client) SetDefaultBatchDeletePolicy(policy *BatchDeletePolicy)

DefaultBatchDeletePolicy returns corresponding default policy from the client

func (*Client) SetDefaultBatchPolicy

func (clnt *Client) SetDefaultBatchPolicy(policy *BatchPolicy)

DefaultBatchPolicy returns corresponding default policy from the client

func (*Client) SetDefaultBatchReadPolicy added in v7.4.0

func (clnt *Client) SetDefaultBatchReadPolicy(policy *BatchReadPolicy)

DefaultBatchReadPolicy returns corresponding default policy from the client

func (*Client) SetDefaultBatchUDFPolicy

func (clnt *Client) SetDefaultBatchUDFPolicy(policy *BatchUDFPolicy)

DefaultBatchUDFPolicy returns corresponding default policy from the client

func (*Client) SetDefaultBatchWritePolicy

func (clnt *Client) SetDefaultBatchWritePolicy(policy *BatchWritePolicy)

DefaultBatchWritePolicy returns corresponding default policy from the client

func (*Client) SetDefaultInfoPolicy

func (clnt *Client) SetDefaultInfoPolicy(policy *InfoPolicy)

DefaultInfoPolicy returns corresponding default policy from the client

func (*Client) SetDefaultPolicy

func (clnt *Client) SetDefaultPolicy(policy *BasePolicy)

DefaultPolicy returns corresponding default policy from the client

func (*Client) SetDefaultQueryPolicy

func (clnt *Client) SetDefaultQueryPolicy(policy *QueryPolicy)

DefaultQueryPolicy returns corresponding default policy from the client

func (*Client) SetDefaultScanPolicy

func (clnt *Client) SetDefaultScanPolicy(policy *ScanPolicy)

DefaultScanPolicy returns corresponding default policy from the client

func (*Client) SetDefaultWritePolicy

func (clnt *Client) SetDefaultWritePolicy(policy *WritePolicy)

DefaultWritePolicy returns corresponding default policy from the client

func (*Client) SetQuotas

func (clnt *Client) SetQuotas(policy *AdminPolicy, roleName string, readQuota, writeQuota uint32) Error

SetQuotas sets maximum reads/writes per second limits for a role. If a quota is zero, the limit is removed. Quotas require server security configuration "enable-quotas" to be set to true. Pass 0 for quota values for no limit.

func (*Client) SetWhitelist

func (clnt *Client) SetWhitelist(policy *AdminPolicy, roleName string, whitelist []string) Error

SetWhitelist sets IP address whitelist for a role. If whitelist is nil or empty, it removes existing whitelist from role.

func (*Client) SetXDRFilter

func (clnt *Client) SetXDRFilter(policy *InfoPolicy, datacenter string, namespace string, filter *Expression) Error

SetXDRFilter sets XDR filter for given datacenter name and namespace. The expression filter indicates which records XDR should ship to the datacenter. Pass nil as filter to remove the current filter on the server.

func (*Client) Stats

func (clnt *Client) Stats() (map[string]interface{}, Error)

Stats returns internal statistics regarding the inner state of the client and the cluster.

func (*Client) String

func (clnt *Client) String() string

String implements the Stringer interface for client

func (*Client) Touch

func (clnt *Client) Touch(policy *WritePolicy, key *Key) Error

Touch updates a record's metadata. If the record exists, the record's TTL will be reset to the policy's expiration. If the record doesn't exist, it will return an error.

func (*Client) Truncate

func (clnt *Client) Truncate(policy *InfoPolicy, namespace, set string, beforeLastUpdate *time.Time) Error

Truncate removes records in specified namespace/set efficiently. This method is many orders of magnitude faster than deleting records one at a time. Works with Aerospike Server versions >= 3.12. This asynchronous server call may return before the truncation is complete. The user can still write new records after the server call returns because new records will have last update times greater than the truncate cutoff (set at the time of truncate call). For more information, See https://www.aerospike.com/docs/reference/info#truncate

func (*Client) WarmUp

func (clnt *Client) WarmUp(count int) (int, Error)

WarmUp fills the connection pool with connections for all nodes. This is necessary on startup for high traffic programs. If the count is <= 0, the connection queue will be filled. If the count is more than the size of the pool, the pool will be filled. Note: One connection per node is reserved for tend operations and is not used for transactions.

type ClientIfc

type ClientIfc interface {
	Add(policy *WritePolicy, key *Key, binMap BinMap) Error
	AddBins(policy *WritePolicy, key *Key, bins ...*Bin) Error
	Append(policy *WritePolicy, key *Key, binMap BinMap) Error
	AppendBins(policy *WritePolicy, key *Key, bins ...*Bin) Error
	BatchDelete(policy *BatchPolicy, deletePolicy *BatchDeletePolicy, keys []*Key) ([]*BatchRecord, Error)
	BatchExecute(policy *BatchPolicy, udfPolicy *BatchUDFPolicy, keys []*Key, packageName string, functionName string, args ...Value) ([]*BatchRecord, Error)
	BatchExists(policy *BatchPolicy, keys []*Key) ([]bool, Error)
	BatchGet(policy *BatchPolicy, keys []*Key, binNames ...string) ([]*Record, Error)
	BatchGetComplex(policy *BatchPolicy, records []*BatchRead) Error
	BatchGetHeader(policy *BatchPolicy, keys []*Key) ([]*Record, Error)
	BatchGetOperate(policy *BatchPolicy, keys []*Key, ops ...*Operation) ([]*Record, Error)
	BatchOperate(policy *BatchPolicy, records []BatchRecordIfc) Error
	ChangePassword(policy *AdminPolicy, user string, password string) Error
	Close()
	Cluster() *Cluster
	CreateComplexIndex(policy *WritePolicy, namespace string, setName string, indexName string, binName string, indexType IndexType, indexCollectionType IndexCollectionType, ctx ...*CDTContext) (*IndexTask, Error)
	CreateIndex(policy *WritePolicy, namespace string, setName string, indexName string, binName string, indexType IndexType) (*IndexTask, Error)
	CreateRole(policy *AdminPolicy, roleName string, privileges []Privilege, whitelist []string, readQuota, writeQuota uint32) Error
	CreateUser(policy *AdminPolicy, user string, password string, roles []string) Error
	Delete(policy *WritePolicy, key *Key) (bool, Error)
	DropIndex(policy *WritePolicy, namespace string, setName string, indexName string) Error
	DropRole(policy *AdminPolicy, roleName string) Error
	DropUser(policy *AdminPolicy, user string) Error
	Execute(policy *WritePolicy, key *Key, packageName string, functionName string, args ...Value) (interface{}, Error)
	ExecuteUDF(policy *QueryPolicy, statement *Statement, packageName string, functionName string, functionArgs ...Value) (*ExecuteTask, Error)
	ExecuteUDFNode(policy *QueryPolicy, node *Node, statement *Statement, packageName string, functionName string, functionArgs ...Value) (*ExecuteTask, Error)
	Exists(policy *BasePolicy, key *Key) (bool, Error)
	Get(policy *BasePolicy, key *Key, binNames ...string) (*Record, Error)
	GetHeader(policy *BasePolicy, key *Key) (*Record, Error)
	GetNodeNames() []string
	GetNodes() []*Node
	GrantPrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) Error
	GrantRoles(policy *AdminPolicy, user string, roles []string) Error
	IsConnected() bool
	ListUDF(policy *BasePolicy) ([]*UDF, Error)
	Operate(policy *WritePolicy, key *Key, operations ...*Operation) (*Record, Error)
	Prepend(policy *WritePolicy, key *Key, binMap BinMap) Error
	PrependBins(policy *WritePolicy, key *Key, bins ...*Bin) Error
	Put(policy *WritePolicy, key *Key, binMap BinMap) Error
	PutBins(policy *WritePolicy, key *Key, bins ...*Bin) Error
	Query(policy *QueryPolicy, statement *Statement) (*Recordset, Error)
	QueryExecute(policy *QueryPolicy, writePolicy *WritePolicy, statement *Statement, ops ...*Operation) (*ExecuteTask, Error)
	QueryNode(policy *QueryPolicy, node *Node, statement *Statement) (*Recordset, Error)

	QueryPartitions(policy *QueryPolicy, statement *Statement, partitionFilter *PartitionFilter) (*Recordset, Error)
	QueryRole(policy *AdminPolicy, role string) (*Role, Error)
	QueryRoles(policy *AdminPolicy) ([]*Role, Error)
	QueryUser(policy *AdminPolicy, user string) (*UserRoles, Error)
	QueryUsers(policy *AdminPolicy) ([]*UserRoles, Error)
	RegisterUDF(policy *WritePolicy, udfBody []byte, serverPath string, language Language) (*RegisterTask, Error)
	RegisterUDFFromFile(policy *WritePolicy, clientPath string, serverPath string, language Language) (*RegisterTask, Error)
	RemoveUDF(policy *WritePolicy, udfName string) (*RemoveTask, Error)
	RevokePrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) Error
	RevokeRoles(policy *AdminPolicy, user string, roles []string) Error
	ScanAll(apolicy *ScanPolicy, namespace string, setName string, binNames ...string) (*Recordset, Error)
	ScanNode(apolicy *ScanPolicy, node *Node, namespace string, setName string, binNames ...string) (*Recordset, Error)
	ScanPartitions(apolicy *ScanPolicy, partitionFilter *PartitionFilter, namespace string, setName string, binNames ...string) (*Recordset, Error)
	SetQuotas(policy *AdminPolicy, roleName string, readQuota, writeQuota uint32) Error
	SetWhitelist(policy *AdminPolicy, roleName string, whitelist []string) Error
	SetXDRFilter(policy *InfoPolicy, datacenter string, namespace string, filter *Expression) Error
	Stats() (map[string]interface{}, Error)
	String() string
	Touch(policy *WritePolicy, key *Key) Error
	Truncate(policy *InfoPolicy, namespace, set string, beforeLastUpdate *time.Time) Error
	WarmUp(count int) (int, Error)

	BatchGetObjects(policy *BatchPolicy, keys []*Key, objects []interface{}) (found []bool, err Error)
	GetObject(policy *BasePolicy, key *Key, obj interface{}) Error
	PutObject(policy *WritePolicy, key *Key, obj interface{}) (err Error)
	QueryAggregate(policy *QueryPolicy, statement *Statement, packageName, functionName string, functionArgs ...Value) (*Recordset, Error)
	QueryNodeObjects(policy *QueryPolicy, node *Node, statement *Statement, objChan interface{}) (*Recordset, Error)
	QueryObjects(policy *QueryPolicy, statement *Statement, objChan interface{}) (*Recordset, Error)
	QueryPartitionObjects(policy *QueryPolicy, statement *Statement, objChan interface{}, partitionFilter *PartitionFilter) (*Recordset, Error)
	ScanAllObjects(apolicy *ScanPolicy, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, Error)
	ScanNodeObjects(apolicy *ScanPolicy, node *Node, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, Error)
	ScanPartitionObjects(apolicy *ScanPolicy, objChan interface{}, partitionFilter *PartitionFilter, namespace string, setName string, binNames ...string) (*Recordset, Error)

	GetDefaultPolicy() *BasePolicy
	GetDefaultBatchPolicy() *BatchPolicy
	GetDefaultBatchWritePolicy() *BatchWritePolicy
	GetDefaultBatchDeletePolicy() *BatchDeletePolicy
	GetDefaultBatchUDFPolicy() *BatchUDFPolicy
	GetDefaultWritePolicy() *WritePolicy
	GetDefaultScanPolicy() *ScanPolicy
	GetDefaultQueryPolicy() *QueryPolicy
	GetDefaultAdminPolicy() *AdminPolicy
	GetDefaultInfoPolicy() *InfoPolicy

	SetDefaultPolicy(*BasePolicy)
	SetDefaultBatchPolicy(*BatchPolicy)
	SetDefaultBatchWritePolicy(*BatchWritePolicy)
	SetDefaultBatchDeletePolicy(*BatchDeletePolicy)
	SetDefaultBatchUDFPolicy(*BatchUDFPolicy)
	SetDefaultWritePolicy(*WritePolicy)
	SetDefaultScanPolicy(*ScanPolicy)
	SetDefaultQueryPolicy(*QueryPolicy)
	SetDefaultAdminPolicy(*AdminPolicy)
	SetDefaultInfoPolicy(*InfoPolicy)
	// contains filtered or unexported methods
}

ClientIfc abstracts an Aerospike cluster.

type ClientPolicy

type ClientPolicy struct {
	// AuthMode specifies authentication mode used when user/password is defined. It is set to AuthModeInternal by default.
	AuthMode AuthMode

	// User authentication to cluster. Leave empty for clusters running without restricted access.
	User string

	// Password authentication to cluster. The password will be stored by the client and sent to server
	// in hashed format. Leave empty for clusters running without restricted access.
	Password string

	// ClusterName sets the expected cluster ID.  If not nil, server nodes must return this cluster ID in order to
	// join the client's view of the cluster. Should only be set when connecting to servers that
	// support the "cluster-name" info command. (v3.10+)
	ClusterName string //=""

	// Initial host connection timeout duration.  The timeout when opening a connection
	// to the server host for the first time.
	Timeout time.Duration //= 30 seconds

	// Connection idle timeout. Every time a connection is used, its idle
	// deadline will be extended by this duration. When this deadline is reached,
	// the connection will be closed and discarded from the connection pool.
	// The value is limited to 24 hours (86400s).
	//
	// It's important to set this value to a few seconds less than the server's proto-fd-idle-ms
	// (default 60000 milliseconds or 1 minute), so the client does not attempt to use a socket
	// that has already been reaped by the server.
	//
	// Connection pools are now implemented by a LIFO stack. Connections at the tail of the
	// stack will always be the least used. These connections are checked for IdleTimeout
	// on every tend (usually 1 second).
	//
	// Default: 0 seconds
	IdleTimeout time.Duration //= 0 seconds

	// LoginTimeout specifies the timeout for login operation for external authentication such as LDAP.
	LoginTimeout time.Duration //= 10 seconds

	// ConnectionQueueCache specifies the size of the Connection Queue cache PER NODE.
	// Note: One connection per node is reserved for tend operations and is not used for transactions.
	ConnectionQueueSize int //= 100

	// MinConnectionsPerNode specifies the minimum number of synchronous connections allowed per server node.
	// Preallocate min connections on client node creation.
	// The client will periodically allocate new connections if count falls below min connections.
	//
	// Server proto-fd-idle-ms may also need to be increased substantially if min connections are defined.
	// The proto-fd-idle-ms default directs the server to close connections that are idle for 60 seconds
	// which can defeat the purpose of keeping connections in reserve for a future burst of activity.
	//
	// If server proto-fd-idle-ms is changed, client ClientPolicy.IdleTimeout should also be
	// changed to be a few seconds less than proto-fd-idle-ms.
	//
	// Default: 0
	MinConnectionsPerNode int

	// MaxErrorRate defines the maximum number of errors allowed per node per ErrorRateWindow before
	// the circuit-breaker algorithm returns MAX_ERROR_RATE on database commands to that node.
	// If MaxErrorRate is zero, there is no error limit and
	// the exception will never be thrown.
	//
	// The counted error types are any error that causes the connection to close (socket errors
	// and client timeouts) and types.ResultCode.DEVICE_OVERLOAD.
	//
	// Default: 100
	MaxErrorRate int

	// ErrorRateWindow defined the number of cluster tend iterations that defines the window for MaxErrorRate.
	// One tend iteration is defined as TendInterval plus the time to tend all nodes.
	// At the end of the window, the error count is reset to zero and backoff state is removed
	// on all nodes.
	//
	// Default: 1
	ErrorRateWindow int //= 1

	// If set to true, will not create a new connection
	// to the node if there are already `ConnectionQueueSize` active connections.
	// Note: One connection per node is reserved for tend operations and is not used for transactions.
	LimitConnectionsToQueueSize bool //= true

	// Number of connections allowed to established at the same time.
	// This value does not limit the number of connections. It just
	// puts a threshold on the number of parallel opening connections.
	// By default, there are no limits.
	OpeningConnectionThreshold int // 0

	// Throw exception if host connection fails during addHost().
	FailIfNotConnected bool //= true

	// TendInterval determines interval for checking for cluster state changes.
	// Minimum possible interval is 10 Milliseconds.
	TendInterval time.Duration //= 1 second

	// A IP translation table is used in cases where different clients
	// use different server IP addresses.  This may be necessary when
	// using clients from both inside and outside a local area
	// network. Default is no translation.
	// The key is the IP address returned from friend info requests to other servers.
	// The value is the real IP address used to connect to the server.
	IpMap map[string]string

	// UseServicesAlternate determines if the client should use "services-alternate" instead of "services"
	// in info request during cluster tending.
	//"services-alternate" returns server configured external IP addresses that client
	// uses to talk to nodes.  "services-alternate" can be used in place of providing a client "ipMap".
	// This feature is recommended instead of using the client-side IpMap above.
	//
	// "services-alternate" is available with Aerospike Server versions >= 3.7.1.
	UseServicesAlternate bool // false

	// RackAware directs the client to update rack information on intervals.
	// When this feature is enabled, the client will prefer to use nodes which reside
	// on the same rack as the client for read transactions. The application should also set the RackId, and
	// use the ReplicaPolicy.PREFER_RACK for reads.
	// This feature is in particular useful if the cluster is in the cloud and the cloud provider
	// is charging for network bandwidth out of the zone. Keep in mind that the node on the same rack
	// may not be the Master, and as such the data may be stale. This setting is particularly usable
	// for clusters that are read heavy.
	RackAware bool // false

	// RackIds defines the list of acceptable racks in order of preference. Nodes in RackIds[0] are chosen first.
	// If a node is not found in rackIds[0], then nodes in rackIds[1] are searched, and so on.
	// If rackIds is set, ClientPolicy.RackId is ignored.
	//
	// ClientPolicy.RackAware, ReplicaPolicy.PREFER_RACK and server rack
	// configuration must also be set to enable this functionality.
	RackIds []int // nil

	// TlsConfig specifies TLS secure connection policy for TLS enabled servers.
	// For better performance, we suggest preferring the server-side ciphers by
	// setting PreferServerCipherSuites = true.
	TlsConfig *tls.Config //= nil

	// IgnoreOtherSubnetAliases helps to ignore aliases that are outside main subnet
	IgnoreOtherSubnetAliases bool //= false

	// SeedOnlyCluster enforces the client to use only the seed addresses.
	// Peers nodes for the cluster are not discovered and seed nodes are
	// retained despite connection failures.
	SeedOnlyCluster bool // = false
}

ClientPolicy encapsulates parameters for client policy command.

func NewClientPolicy

func NewClientPolicy() *ClientPolicy

NewClientPolicy generates a new ClientPolicy with default values.

func (*ClientPolicy) RequiresAuthentication

func (cp *ClientPolicy) RequiresAuthentication() bool

RequiresAuthentication returns true if a User or Password is set for ClientPolicy.

type ClientType

type ClientType int

ClientType determines the type of client to build.

const (
	// CTNative means: Create a native client.
	CTNative ClientType = iota

	// CTProxy means: Create a proxy client.
	CTProxy
)

type Cluster

type Cluster struct {
	// contains filtered or unexported fields
}

Cluster encapsulates the aerospike cluster nodes and manages them.

func (*Cluster) AddSeeds

func (clstr *Cluster) AddSeeds(hosts []*Host)

AddSeeds adds new hosts to the cluster. They will be added to the cluster on next tend call.

func (*Cluster) ClientPolicy

func (clstr *Cluster) ClientPolicy() (res ClientPolicy)

ClientPolicy returns the client policy that is currently used with the cluster.

func (*Cluster) Close

func (clstr *Cluster) Close()

Close closes all cached connections to the cluster nodes and stops the tend goroutine.

func (*Cluster) DisableMetrics added in v7.3.0

func (clstr *Cluster) DisableMetrics()

DisableMetrics disables the cluster transaction metrics gathering.

func (*Cluster) EnableMetrics added in v7.3.0

func (clstr *Cluster) EnableMetrics(policy *MetricsPolicy)

EnableMetrics enables the cluster transaction metrics gathering. If the parameters for the histogram in the policy are the different from the one already on the cluster, the metrics will be reset.

func (*Cluster) GetAliases

func (clstr *Cluster) GetAliases() map[Host]*Node

GetAliases returns a list of all node aliases in the cluster

func (*Cluster) GetNodeByName

func (clstr *Cluster) GetNodeByName(nodeName string) (*Node, Error)

GetNodeByName finds a node by name and returns an error if the node is not found.

func (*Cluster) GetNodes

func (clstr *Cluster) GetNodes() []*Node

GetNodes returns a list of all nodes in the cluster

func (*Cluster) GetRandomNode

func (clstr *Cluster) GetRandomNode() (*Node, Error)

GetRandomNode returns a random node on the cluster

func (*Cluster) GetSeedCount

func (clstr *Cluster) GetSeedCount() int

GetSeedCount is the count of seed nodes

func (*Cluster) GetSeeds

func (clstr *Cluster) GetSeeds() []Host

GetSeeds returns a list of all seed nodes in the cluster

func (*Cluster) Healthy

func (clstr *Cluster) Healthy() Error

Healthy returns an error if the cluster is not healthy.

func (*Cluster) IsConnected

func (clstr *Cluster) IsConnected() bool

IsConnected returns true if cluster has nodes and is not already closed.

func (*Cluster) MetricsEnabled added in v7.3.0

func (clstr *Cluster) MetricsEnabled() bool

MetricsEnabled returns true if metrics are enabled for the cluster.

func (*Cluster) MetricsPolicy added in v7.3.0

func (clstr *Cluster) MetricsPolicy() *MetricsPolicy

MetricsEnabled returns true if metrics are enabled for the cluster.

func (*Cluster) MigrationInProgress

func (clstr *Cluster) MigrationInProgress(timeout time.Duration) (res bool, err Error)

MigrationInProgress determines if any node in the cluster is participating in a data migration

func (*Cluster) Password

func (clstr *Cluster) Password() (res []byte)

Password returns the password that is currently used with the cluster.

func (*Cluster) String

func (clstr *Cluster) String() string

String implements the stringer interface

func (*Cluster) WaitUntillMigrationIsFinished

func (clstr *Cluster) WaitUntillMigrationIsFinished(timeout time.Duration) Error

WaitUntillMigrationIsFinished will block until all migration operations in the cluster all finished.

func (*Cluster) WarmUp

func (clstr *Cluster) WarmUp(count int) (int, Error)

WarmUp fills the connection pool with connections for all nodes. This is necessary on startup for high traffic programs. If the count is <= 0, the connection queue will be filled. If the count is more than the size of the pool, the pool will be filled. Note: One connection per node is reserved for tend operations and is not used for transactions.

type CommitLevel

type CommitLevel int

CommitLevel indicates the desired consistency guarantee when committing a transaction on the server.

const (
	// COMMIT_ALL indicates the server should wait until successfully committing master and all replicas.
	COMMIT_ALL CommitLevel = iota

	// COMMIT_MASTER indicates the server should wait until successfully committing master only.
	COMMIT_MASTER
)

type Connection

type Connection struct {
	// contains filtered or unexported fields
}

Connection represents a connection with a timeout. Connections maintain a buffer to minimize requesting buffers from the pool. If a returned record requires a bigger buffer, the connection will borrow a larger buffer from the pool and temporarily use it, returning it after the request. A histogram keeps track of the sizes of buffers used for the connection, and the median value is used to resize the connection buffer on intervals to optimize memory usage and minimize GC pressure.

func (*Connection) Close

func (ctn *Connection) Close()

Close closes the connection

func (*Connection) IsConnected

func (ctn *Connection) IsConnected() bool

IsConnected returns true if the connection is not closed yet.

func (*Connection) Login

func (ctn *Connection) Login(policy *ClientPolicy) Error

Login will send authentication information to the server. This function is provided for using the connection in conjunction with external libraries. The password will be hashed every time, which is a slow operation.

func (*Connection) Read

func (ctn *Connection) Read(buf []byte, length int) (total int, aerr Error)

Read reads from connection buffer to the provided slice.

func (*Connection) RequestInfo

func (ctn *Connection) RequestInfo(names ...string) (map[string]string, Error)

RequestInfo gets info values by name from the specified connection. Timeout should already be set on the connection.

func (*Connection) SetTimeout

func (ctn *Connection) SetTimeout(deadline time.Time, socketTimeout time.Duration) Error

SetTimeout sets connection timeout for both read and write operations.

func (*Connection) Write

func (ctn *Connection) Write(buf []byte) (total int, aerr Error)

Write writes the slice to the connection buffer.

type DropIndexTask

type DropIndexTask struct {
	// contains filtered or unexported fields
}

DropIndexTask is used to poll for long running create index completion.

func NewDropIndexTask

func NewDropIndexTask(cluster *Cluster, namespace string, indexName string) *DropIndexTask

NewDropIndexTask initializes a task with fields needed to query server nodes.

func (*DropIndexTask) IsDone

func (tski *DropIndexTask) IsDone() (bool, Error)

IsDone queries all nodes for task completion status.

func (*DropIndexTask) OnComplete

func (tski *DropIndexTask) OnComplete() chan Error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type Error

type Error interface {
	error

	// Matches will return true is the ResultCode of the error or
	// any of the errors wrapped down the chain has any of the
	// provided codes.
	Matches(rcs ...types.ResultCode) bool

	// IsInDoubt signifies that the write operation may have gone through on the server
	// but the client is not able to confirm that due an error.
	IsInDoubt() bool

	// Unwrap returns the error inside
	Unwrap() error

	// Trace returns a stack trace of where the error originates from
	Trace() string
	// contains filtered or unexported methods
}

Error is the internal error interface for the Aerospike client's errors. All the public API return this error type. This interface is compatible with error interface, including errors.Is and errors.As.

func CDTContextToBase64

func CDTContextToBase64(ctxl []*CDTContext) (string, Error)

CDTContextToBase64 converts a []*CDTContext into a base64 encoded string.

func PackBool

func PackBool(cmd BufferEx, val bool) (int, Error)

PackBool packs a bool value

func PackBytes

func PackBytes(cmd BufferEx, b []byte) (int, Error)

PackBytes backs a byte array

func PackFloat32

func PackFloat32(cmd BufferEx, val float32) (int, Error)

PackFloat32 packs float32 value

func PackFloat64

func PackFloat64(cmd BufferEx, val float64) (int, Error)

PackFloat64 packs float64 value

func PackInt64

func PackInt64(cmd BufferEx, val int64) (int, Error)

PackInt64 packs an int64

func PackJson

func PackJson(cmd BufferEx, theMap map[string]interface{}) (int, Error)

PackJson packs json data

func PackList

func PackList(cmd BufferEx, list ListIter) (int, Error)

PackList packs any slice that implement the ListIter interface

func PackMap

func PackMap(cmd BufferEx, theMap MapIter) (int, Error)

PackMap packs any map that implements the MapIter interface

func PackNil

func PackNil(cmd BufferEx) (int, Error)

PackNil packs a nil value

func PackString

func PackString(cmd BufferEx, val string) (int, Error)

PackString packs a string

func PackUInt64

func PackUInt64(cmd BufferEx, val uint64) (int, Error)

PackUInt64 packs a uint64

type ExecuteTask

type ExecuteTask struct {
	// contains filtered or unexported fields
}

ExecuteTask is used to poll for long running server execute job completion.

func NewExecuteTask

func NewExecuteTask(cluster *Cluster, statement *Statement) *ExecuteTask

NewExecuteTask initializes task with fields needed to query server nodes.

func (*ExecuteTask) IsDone

func (etsk *ExecuteTask) IsDone() (bool, Error)

IsDone queries all nodes for task completion status.

func (*ExecuteTask) OnComplete

func (etsk *ExecuteTask) OnComplete() chan Error

OnComplete returns a channel which will be closed when the task is completed. If an error is encountered while performing the task, an error will be sent on the channel.

func (*ExecuteTask) TaskId

func (etsk *ExecuteTask) TaskId() uint64

TaskId returns the task id that was sent to the server.

type ExpReadFlags

type ExpReadFlags int

ExpReadFlags is used to change mode in expression reads.

const (
	// ExpReadFlagDefault is the default
	ExpReadFlagDefault ExpReadFlags = 0

	// ExpReadFlagEvalNoFail means:
	// Ignore failures caused by the expression resolving to unknown or a non-bin type.
	ExpReadFlagEvalNoFail ExpReadFlags = 1 << 4
)

type ExpRegexFlags

type ExpRegexFlags int

ExpRegexFlags is used to change the Regex Mode in Expression Filters.

const (
	// ExpRegexFlagNONE uses regex defaults.
	ExpRegexFlagNONE ExpRegexFlags = 0

	// ExpRegexFlagEXTENDED uses POSIX Extended Regular Expression syntax when interpreting regex.
	ExpRegexFlagEXTENDED ExpRegexFlags = 1 << 0

	// ExpRegexFlagICASE does not differentiate cases.
	ExpRegexFlagICASE ExpRegexFlags = 1 << 1

	// ExpRegexFlagNOSUB does not report position of matches.
	ExpRegexFlagNOSUB ExpRegexFlags = 1 << 2

	// ExpRegexFlagNEWLINE does not Match-any-character operators don't match a newline.
	ExpRegexFlagNEWLINE ExpRegexFlags = 1 << 3
)

type ExpType

type ExpType uint

ExpType defines the expression's data type.

var (
	// ExpTypeNIL is NIL Expression Type
	ExpTypeNIL ExpType = 0
	// ExpTypeBOOL is BOOLEAN Expression Type
	ExpTypeBOOL ExpType = 1
	// ExpTypeINT is INTEGER Expression Type
	ExpTypeINT ExpType = 2
	// ExpTypeSTRING is STRING Expression Type
	ExpTypeSTRING ExpType = 3
	// ExpTypeLIST is LIST Expression Type
	ExpTypeLIST ExpType = 4
	// ExpTypeMAP is MAP Expression Type
	ExpTypeMAP ExpType = 5
	// ExpTypeBLOB is BLOB Expression Type
	ExpTypeBLOB ExpType = 6
	// ExpTypeFLOAT is FLOAT Expression Type
	ExpTypeFLOAT ExpType = 7
	// ExpTypeGEO is GEO String Expression Type
	ExpTypeGEO ExpType = 8
	// ExpTypeHLL is HLL Expression Type
	ExpTypeHLL ExpType = 9
)

type ExpWriteFlags

type ExpWriteFlags int

ExpWriteFlags is used to change mode in expression writes.

const (
	// ExpWriteFlagDefault is the default. Allows create or update.
	ExpWriteFlagDefault ExpWriteFlags = 0

	// ExpWriteFlagCreateOnly means:
	// If bin does not exist, a new bin will be created.
	// If bin exists, the operation will be denied.
	// If bin exists, fail with Bin Exists
	ExpWriteFlagCreateOnly ExpWriteFlags = 1 << 0

	// ExpWriteFlagUpdateOnly means:
	// If bin exists, the bin will be overwritten.
	// If bin does not exist, the operation will be denied.
	// If bin does not exist, fail with Bin Not Found
	ExpWriteFlagUpdateOnly ExpWriteFlags = 1 << 1

	// ExpWriteFlagAllowDelete means:
	// If expression results in nil value, then delete the bin.
	// Otherwise, return OP Not Applicable when NoFail is not set
	ExpWriteFlagAllowDelete ExpWriteFlags = 1 << 2

	// ExpWriteFlagPolicyNoFail means:
	// Do not raise error if operation is denied.
	ExpWriteFlagPolicyNoFail ExpWriteFlags = 1 << 3

	// ExpWriteFlagEvalNoFail means:
	// Ignore failures caused by the expression resolving to unknown or a non-bin type.
	ExpWriteFlagEvalNoFail ExpWriteFlags = 1 << 4
)

Expression write Flags

type Expression

type Expression struct {
	// contains filtered or unexported fields
}

Expression which can be applied to most commands, to control which records are affected by the command.

func ExpAnd

func ExpAnd(exps ...*Expression) *Expression

ExpAnd creates a "and" (&&) operator that applies to a variable number of expressions.

func ExpBinExists

func ExpBinExists(name string) *Expression

ExpBinExists creates a function that returns if bin of specified name exists.

func ExpBinType

func ExpBinType(name string) *Expression

ExpBinType creates a function that returns bin's integer particle type. Valid values are:

NULL    = 0
INTEGER = 1
FLOAT   = 2
STRING  = 3
BLOB    = 4
DIGEST  = 6
BOOL    = 17
HLL     = 18
MAP     = 19
LIST    = 20
LDT     = 21
GEOJSON = 23

func ExpBitAdd

func ExpBitAdd(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	signed bool,
	action BitOverflowAction,
	bin *Expression,
) *Expression

ExpBitAdd creates an expression that adds value to []byte bin starting at bitOffset for bitSize and returns []byte. `BitSize` must be <= 64. Signed indicates if bits should be treated as a signed number. If add overflows/underflows, `BitOverflowAction` is used.

func ExpBitAnd

func ExpBitAnd(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitAnd creates an expression that performs bitwise "and" on value and []byte bin at bitOffset for bitSize and returns []byte.

bin = [0b00000001, 0b01000010, 0b00000011, 0b00000100, 0b00000101]
bitOffset = 23
bitSize = 9
value = [0b00111100, 0b10000000]
bin result = [0b00000001, 0b01000010, 0b00000010, 0b00000000, 0b00000101]

func ExpBitCount

func ExpBitCount(
	bitOffset *Expression,
	bitSize *Expression,
	bin *Expression,
) *Expression

ExpBitCount creates an expression that returns integer count of set bits from []byte bin starting at bitOffset for bitSize.

func ExpBitGet

func ExpBitGet(
	bitOffset *Expression,
	bitSize *Expression,
	bin *Expression,
) *Expression

ExpBitGet creates an expression that returns bits from []byte bin starting at bitOffset for bitSize.

func ExpBitGetInt

func ExpBitGetInt(
	bitOffset *Expression,
	bitSize *Expression,
	signed bool,
	bin *Expression,
) *Expression

ExpBitGetInt Create expression that returns integer from []byte bin starting at bitOffset for bitSize. Signed indicates if bits should be treated as a signed number.

func ExpBitInsert

func ExpBitInsert(
	policy *BitPolicy,
	byteOffset *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitInsert creates an expression that inserts value bytes into []byte bin at byteOffset and returns []byte.

func ExpBitLScan

func ExpBitLScan(
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitLScan creates an expression that returns integer bit offset of the first specified value bit in []byte bin starting at bitOffset for bitSize.

func ExpBitLShift

func ExpBitLShift(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	shift *Expression,
	bin *Expression,
) *Expression

ExpBitLShift creates an expression that shifts left []byte bin starting at bitOffset for bitSize and returns []byte.

func ExpBitNot

func ExpBitNot(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	bin *Expression,
) *Expression

ExpBitNot creates an expression that negates []byte bin starting at bitOffset for bitSize and returns []byte.

func ExpBitOr

func ExpBitOr(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitOr creates an expression that performs bitwise "or" on value and []byte bin at bitOffset for bitSize and returns []byte.

func ExpBitRScan

func ExpBitRScan(
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitRScan creates an expression that returns integer bit offset of the last specified value bit in []byte bin starting at bitOffset for bitSize.

func ExpBitRShift

func ExpBitRShift(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	shift *Expression,
	bin *Expression,
) *Expression

ExpBitRShift creates an expression that shifts right []byte bin starting at bitOffset for bitSize and returns []byte.

func ExpBitRemove

func ExpBitRemove(
	policy *BitPolicy,
	byteOffset *Expression,
	byteSize *Expression,
	bin *Expression,
) *Expression

ExpBitRemove creates an expression that removes bytes from []byte bin at byteOffset for byteSize and returns []byte.

func ExpBitResize

func ExpBitResize(
	policy *BitPolicy,
	byteSize *Expression,
	resizeFlags BitResizeFlags,
	bin *Expression,
) *Expression

ExpBitResize creates an expression that resizes []byte to byteSize according to resizeFlags and returns []byte.

func ExpBitSet

func ExpBitSet(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitSet creates an expression that sets value on []byte bin at bitOffset for bitSize and returns []byte.

func ExpBitSetInt

func ExpBitSetInt(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitSetInt creates an expression that sets value to []byte bin starting at bitOffset for bitSize and returns []byte. `BitSize` must be <= 64.

func ExpBitSubtract

func ExpBitSubtract(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	signed bool,
	action BitOverflowAction,
	bin *Expression,
) *Expression

ExpBitSubtract creates an expression that subtracts value from []byte bin starting at bitOffset for bitSize and returns []byte. `BitSize` must be <= 64. Signed indicates if bits should be treated as a signed number. If add overflows/underflows, `BitOverflowAction` is used.

func ExpBitXor

func ExpBitXor(
	policy *BitPolicy,
	bitOffset *Expression,
	bitSize *Expression,
	value *Expression,
	bin *Expression,
) *Expression

ExpBitXor creates an expression that performs bitwise "xor" on value and []byte bin at bitOffset for bitSize and returns []byte.

func ExpBlobBin

func ExpBlobBin(name string) *Expression

ExpBlobBin creates a blob bin expression.

func ExpBlobVal

func ExpBlobVal(val []byte) *Expression

ExpBlobVal creates a Blob bin value

func ExpBoolBin

func ExpBoolBin(name string) *Expression

ExpBoolBin creates a boolean bin expression.

func ExpBoolVal

func ExpBoolVal(val bool) *Expression

ExpBoolVal creates a Boolean value

func ExpCond

func ExpCond(exps ...*Expression) *Expression

ExpCond will conditionally select an action expression from a variable number of expression pairs followed by a default action expression. Every action expression must return the same type. The only exception is Unknown() which can be mixed with other types.

Requires server version 5.6.0+.

func ExpDef

func ExpDef(name string, value *Expression) *Expression

ExpDef will assign variable to an expression that can be accessed later. Requires server version 5.6.0+.

func ExpDeviceSize

func ExpDeviceSize() *Expression

ExpDeviceSize creates a function that returns record size on disk. If server storage-engine is memory, then zero is returned.

This expression should only be used for server versions less than 7.0. Use ExpRecordSize for server version 7.0+.

func ExpDigestModulo

func ExpDigestModulo(modulo int64) *Expression

ExpDigestModulo creates a function that returns record digest modulo as integer.

func ExpEq

func ExpEq(left *Expression, right *Expression) *Expression

ExpEq creates a equal (==) expression.

func ExpExclusive

func ExpExclusive(exps ...*Expression) *Expression

ExpExclusive creates an expression that returns true if only one of the expressions are true. Requires server version 5.6.0+.

func ExpFloatBin

func ExpFloatBin(name string) *Expression

ExpFloatBin creates a 64 bit float bin expression.

func ExpFloatVal

func ExpFloatVal(val float64) *Expression

ExpFloatVal creates a 64 bit float bin value

func ExpGeoBin

func ExpGeoBin(name string) *Expression

ExpGeoBin creates a geo bin expression.

func ExpGeoCompare

func ExpGeoCompare(left *Expression, right *Expression) *Expression

ExpGeoCompare creates a compare geospatial operation.

func ExpGeoVal

func ExpGeoVal(val string) *Expression

ExpGeoVal creates a geospatial json string value.

func ExpGreater

func ExpGreater(left *Expression, right *Expression) *Expression

ExpGreater creates a greater than (>) operation.

func ExpGreaterEq

func ExpGreaterEq(left *Expression, right *Expression) *Expression

ExpGreaterEq creates a greater than or equal (>=) operation.

func ExpHLLAdd

func ExpHLLAdd(policy *HLLPolicy, list *Expression, bin *Expression) *Expression

ExpHLLAdd creates an expression that adds list values to a HLL set and returns HLL set. The function assumes HLL bin already exists. indexBitCount + minHashBitCount must be <= 64.

func ExpHLLAddWithIndex

func ExpHLLAddWithIndex(
	policy *HLLPolicy,
	list *Expression,
	indexBitCount *Expression,
	bin *Expression,
) *Expression

ExpHLLAddWithIndex creates an expression that adds values to a HLL set and returns HLL set. If HLL bin does not exist, use `indexBitCount` to create HLL bin.

func ExpHLLAddWithIndexAndMinHash

func ExpHLLAddWithIndexAndMinHash(
	policy *HLLPolicy,
	list *Expression,
	indexBitCount *Expression,
	minHashCount *Expression,
	bin *Expression,
) *Expression

ExpHLLAddWithIndexAndMinHash creates an expression that adds values to a HLL set and returns HLL set. If HLL bin does not exist, use `indexBitCount` and `minHashBitCount` to create HLL set. indexBitCount + minHashBitCount must be <= 64.

func ExpHLLBin

func ExpHLLBin(name string) *Expression

ExpHLLBin creates a a HLL bin expression

func ExpHLLDescribe

func ExpHLLDescribe(bin *Expression) *Expression

ExpHLLDescribe creates an expression that returns `indexBitCount` and `minHashBitCount` used to create HLL bin in a list of longs. `list[0]` is `indexBitCount` and `list[1]` is `minHashBitCount`.

func ExpHLLGetCount

func ExpHLLGetCount(bin *Expression) *Expression

ExpHLLGetCount creates an expression that returns estimated number of elements in the HLL bin.

func ExpHLLGetIntersectCount

func ExpHLLGetIntersectCount(list *Expression, bin *Expression) *Expression

ExpHLLGetIntersectCount creates an expression that returns estimated number of elements that would be contained by the intersection of these HLL objects.

func ExpHLLGetSimilarity

func ExpHLLGetSimilarity(list *Expression, bin *Expression) *Expression

ExpHLLGetSimilarity creates an expression that returns estimated similarity of these HLL objects as a 64 bit float.

func ExpHLLGetUnion

func ExpHLLGetUnion(list *Expression, bin *Expression) *Expression

ExpHLLGetUnion creates an expression that returns a HLL object that is the union of all specified HLL objects in the list with the HLL bin.

func ExpHLLGetUnionCount

func ExpHLLGetUnionCount(list *Expression, bin *Expression) *Expression

ExpHLLGetUnionCount creates an expression that returns estimated number of elements that would be contained by the union of these HLL objects.

func ExpHLLInit

func ExpHLLInit(
	policy *HLLPolicy,
	indexBitCount *Expression,
	bin *Expression,
) *Expression

ExpHLLInit creates expression that creates a new HLL or resets an existing HLL.

func ExpHLLInitWithMinHash

func ExpHLLInitWithMinHash(
	policy *HLLPolicy,
	indexBitCount *Expression,
	minHashCount *Expression,
	bin *Expression,
) *Expression

ExpHLLInitWithMinHash creates expression that creates a new HLL or resets an existing HLL with minhash bits. indexBitCount + minHashBitCount must be <= 64.

func ExpHLLMayContain

func ExpHLLMayContain(list *Expression, bin *Expression) *Expression

ExpHLLMayContain creates an expression that returns one if HLL bin may contain all items in the list.

func ExpInfinityValue

func ExpInfinityValue() *Expression

ExpInfinityValue creates an Infinity Value

func ExpIntARShift

func ExpIntARShift(value *Expression, shift *Expression) *Expression

ExpIntARShift creates integer "arithmetic right shift" (>>) operator. The sign bit is preserved and not shifted. Requires server version 5.6.0+.

func ExpIntAnd

func ExpIntAnd(exps ...*Expression) *Expression

ExpIntAnd creates integer "and" (&) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

func ExpIntBin

func ExpIntBin(name string) *Expression

ExpIntBin creates a 64 bit int bin expression.

func ExpIntCount

func ExpIntCount(exp *Expression) *Expression

ExpIntCount creates expression that returns count of integer bits that are set to 1. Requires server version 5.6.0+.

func ExpIntLScan

func ExpIntLScan(value *Expression, search *Expression) *Expression

ExpIntLScan creates expression that scans integer bits from left (most significant bit) to right (least significant bit), looking for a search bit value. When the search value is found, the index of that bit (where the most significant bit is index 0) is returned. If "search" is true, the scan will search for the bit value 1. If "search" is false it will search for bit value 0. Requires server version 5.6.0+.

func ExpIntLShift

func ExpIntLShift(value *Expression, shift *Expression) *Expression

ExpIntLShift creates integer "left shift" (<<) operator. Requires server version 5.6.0+.

func ExpIntNot

func ExpIntNot(exp *Expression) *Expression

ExpIntNot creates integer "not" (~) operator. Requires server version 5.6.0+.

func ExpIntOr

func ExpIntOr(exps ...*Expression) *Expression

ExpIntOr creates integer "or" (|) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

func ExpIntRScan

func ExpIntRScan(value *Expression, search *Expression) *Expression

ExpIntRScan creates expression that scans integer bits from right (least significant bit) to left (most significant bit), looking for a search bit value. When the search value is found, the index of that bit (where the most significant bit is index 0) is returned. If "search" is true, the scan will search for the bit value 1. If "search" is false it will search for bit value 0. Requires server version 5.6.0+.

func ExpIntRShift

func ExpIntRShift(value *Expression, shift *Expression) *Expression

ExpIntRShift creates integer "logical right shift" (>>>) operator. Requires server version 5.6.0+.

func ExpIntVal

func ExpIntVal(val int64) *Expression

ExpIntVal creates a 64 bit integer value

func ExpIntXor

func ExpIntXor(exps ...*Expression) *Expression

ExpIntXor creates integer "xor" (^) operator that is applied to two or more integers. All arguments must resolve to integers. Requires server version 5.6.0+.

func ExpIsTombstone

func ExpIsTombstone() *Expression

ExpIsTombstone creates a expression that returns if record has been deleted and is still in tombstone state. This expression usually evaluates quickly because record meta data is cached in memory.

func ExpKey

func ExpKey(expType ExpType) *Expression

ExpKey creates a record key expression of specified type.

func ExpKeyExists

func ExpKeyExists() *Expression

ExpKeyExists creates a function that returns if the primary key is stored in the record meta data as a boolean expression. This would occur when `send_key` is true on record write.

func ExpLastUpdate

func ExpLastUpdate() *Expression

ExpLastUpdate creates a function that returns record last update time expressed as 64 bit integer nanoseconds since 1970-01-01 epoch.

func ExpLess

func ExpLess(left *Expression, right *Expression) *Expression

ExpLess creates a less than (<) operation.

func ExpLessEq

func ExpLessEq(left *Expression, right *Expression) *Expression

ExpLessEq creates a less than or equals (<=) operation.

func ExpLet

func ExpLet(exps ...*Expression) *Expression

ExpLet will define variables and expressions in scope. Requires server version 5.6.0+.

func ExpListAppend

func ExpListAppend(
	policy *ListPolicy,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListAppend creates an expression that appends value to end of list.

func ExpListAppendItems

func ExpListAppendItems(
	policy *ListPolicy,
	list *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListAppendItems creates an expression that appends list items to end of list.

func ExpListBin

func ExpListBin(name string) *Expression

ExpListBin creates a list bin expression.

func ExpListClear

func ExpListClear(bin *Expression, ctx ...*CDTContext) *Expression

ExpListClear creates an expression that removes all items in list.

func ExpListGetByIndex

func ExpListGetByIndex(
	returnType ListReturnType,
	valueType ExpType,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByIndex creates an expression that selects list item identified by index and returns selected data specified by returnType.

func ExpListGetByIndexRange

func ExpListGetByIndexRange(
	returnType ListReturnType,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByIndexRange creates an expression that selects list items starting at specified index to the end of list and returns selected data specified by returnType .

func ExpListGetByIndexRangeCount

func ExpListGetByIndexRangeCount(
	returnType ListReturnType,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByIndexRangeCount creates an expression that selects "count" list items starting at specified index and returns selected data specified by returnType.

func ExpListGetByRank

func ExpListGetByRank(
	returnType ListReturnType,
	valueType ExpType,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByRank creates an expression that selects list item identified by rank and returns selected data specified by returnType.

func ExpListGetByRankRange

func ExpListGetByRankRange(
	returnType ListReturnType,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByRankRange creates an expression that selects list items starting at specified rank to the last ranked item and returns selected data specified by returnType.

func ExpListGetByRankRangeCount

func ExpListGetByRankRangeCount(
	returnType ListReturnType,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByRankRangeCount creates an expression that selects "count" list items starting at specified rank and returns selected data specified by returnType.

func ExpListGetByValue

func ExpListGetByValue(
	returnType ListReturnType,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByValue creates an expression that selects list items identified by value and returns selected data specified by returnType.

func ExpListGetByValueList

func ExpListGetByValueList(
	returnType ListReturnType,
	values *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByValueList creates an expression that selects list items identified by values and returns selected data specified by returnType.

func ExpListGetByValueRange

func ExpListGetByValueRange(
	returnType ListReturnType,
	valueBegin *Expression,
	valueEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByValueRange creates an expression that selects list items identified by value range and returns selected data specified by returnType.

func ExpListGetByValueRelativeRankRange

func ExpListGetByValueRelativeRankRange(
	returnType ListReturnType,
	value *Expression,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByValueRelativeRankRange creates an expression that selects list items nearest to value and greater by relative rank and returns selected data specified by returnType.

Examples for ordered list \[0, 4, 5, 9, 11, 15\]:

(value,rank) = [selected items]
(5,0) = [5,9,11,15]
(5,1) = [9,11,15]
(5,-1) = [4,5,9,11,15]
(3,0) = [4,5,9,11,15]
(3,3) = [11,15]
(3,-3) = [0,4,5,9,11,15]

func ExpListGetByValueRelativeRankRangeCount

func ExpListGetByValueRelativeRankRangeCount(
	returnType ListReturnType,
	value *Expression,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListGetByValueRelativeRankRangeCount creates an expression that selects list items nearest to value and greater by relative rank with a count limit and returns selected data specified by returnType.

Examples for ordered list \[0, 4, 5, 9, 11, 15\]:

(value,rank,count) = [selected items]
(5,0,2) = [5,9]
(5,1,1) = [9]
(5,-1,2) = [4,5]
(3,0,1) = [4]
(3,3,7) = [11,15]
(3,-3,2) = []

func ExpListIncrement

func ExpListIncrement(
	policy *ListPolicy,
	index *Expression,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListIncrement creates an expression that increments `list[index]` by value. Value expression should resolve to a number.

func ExpListInsert

func ExpListInsert(
	policy *ListPolicy,
	index *Expression,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListInsert creates an expression that inserts value to specified index of list.

func ExpListInsertItems

func ExpListInsertItems(
	policy *ListPolicy,
	index *Expression,
	list *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListInsertItems creates an expression that inserts each input list item starting at specified index of list.

func ExpListRemoveByIndex

func ExpListRemoveByIndex(
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByIndex creates an expression that removes list item identified by index.

func ExpListRemoveByIndexRange

func ExpListRemoveByIndexRange(
	returnType ListReturnType,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByIndexRange creates an expression that removes list items starting at specified index to the end of list. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByIndexRangeCount

func ExpListRemoveByIndexRangeCount(
	returnType ListReturnType,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByIndexRangeCount creates an expression that removes "count" list items starting at specified index. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByRank

func ExpListRemoveByRank(
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByRank creates an expression that removes list item identified by rank.

func ExpListRemoveByRankRange

func ExpListRemoveByRankRange(
	returnType ListReturnType,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByRankRange creates an expression that removes list items starting at specified rank to the last ranked item. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByRankRangeCount

func ExpListRemoveByRankRangeCount(
	returnType ListReturnType,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByRankRangeCount creates an expression that removes "count" list items starting at specified rank. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByValue

func ExpListRemoveByValue(
	returnType ListReturnType,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByValue creates an expression that removes list items identified by value. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByValueList

func ExpListRemoveByValueList(
	returnType ListReturnType,
	values *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByValueList creates an expression that removes list items identified by values. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByValueRange

func ExpListRemoveByValueRange(
	returnType ListReturnType,
	valueBegin *Expression,
	valueEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByValueRange creates an expression that removes list items identified by value range (valueBegin inclusive, valueEnd exclusive). If valueBegin is nil, the range is less than valueEnd. If valueEnd is nil, the range is greater than equal to valueBegin. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

func ExpListRemoveByValueRelativeRankRange

func ExpListRemoveByValueRelativeRankRange(
	returnType ListReturnType,
	value *Expression,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByValueRelativeRankRange creates an expression that removes list items nearest to value and greater by relative rank. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

Examples for ordered list \[0, 4, 5, 9, 11, 15\]:

(value,rank) = [removed items]
(5,0) = [5,9,11,15]
(5,1) = [9,11,15]
(5,-1) = [4,5,9,11,15]
(3,0) = [4,5,9,11,15]
(3,3) = [11,15]
(3,-3) = [0,4,5,9,11,15]

func ExpListRemoveByValueRelativeRankRangeCount

func ExpListRemoveByValueRelativeRankRangeCount(
	returnType ListReturnType,
	value *Expression,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListRemoveByValueRelativeRankRangeCount creates an expression that removes list items nearest to value and greater by relative rank with a count limit. Valid returnType values are ListReturnTypeNone or ListReturnTypeInverted.

Examples for ordered list \[0, 4, 5, 9, 11, 15\]:

(value,rank,count) = [removed items]
(5,0,2) = [5,9]
(5,1,1) = [9]
(5,-1,2) = [4,5]
(3,0,1) = [4]
(3,3,7) = [11,15]
(3,-3,2) = []

func ExpListSet

func ExpListSet(
	policy *ListPolicy,
	index *Expression,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListSet creates an expression that sets item value at specified index in list.

func ExpListSize

func ExpListSize(bin *Expression, ctx ...*CDTContext) *Expression

ExpListSize creates an expression that returns list size.

func ExpListSort

func ExpListSort(
	sortFlags ListSortFlags,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpListSort creates an expression that sorts list according to sortFlags.

func ExpListVal

func ExpListVal(val ...Value) *Expression

ExpListVal creates a List bin Value

func ExpListValueVal

func ExpListValueVal(val ...interface{}) *Expression

ExpListValueVal creates a List bin Value

func ExpMapBin

func ExpMapBin(name string) *Expression

ExpMapBin creates a map bin expression.

func ExpMapClear

func ExpMapClear(bin *Expression, ctx ...*CDTContext) *Expression

ExpMapClear creates an expression that removes all items in map.

func ExpMapGetByIndex

func ExpMapGetByIndex(
	returnType MapReturnTypes,
	valueType ExpType,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByIndex creates an expression that selects map item identified by index and returns selected data specified by returnType.

func ExpMapGetByIndexRange

func ExpMapGetByIndexRange(
	returnType MapReturnTypes,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByIndexRange creates an expression that selects map items starting at specified index to the end of map and returns selected data specified by returnType.

func ExpMapGetByIndexRangeCount

func ExpMapGetByIndexRangeCount(
	returnType MapReturnTypes,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByIndexRangeCount creates an expression that selects "count" map items starting at specified index and returns selected data specified by returnType.

func ExpMapGetByKey

func ExpMapGetByKey(
	returnType MapReturnTypes,
	valueType ExpType,
	key *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByKey creates an expression that selects map item identified by key and returns selected data specified by returnType.

func ExpMapGetByKeyList

func ExpMapGetByKeyList(
	returnType MapReturnTypes,
	keys *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByKeyList creates an expression that selects map items identified by keys and returns selected data specified by returnType

func ExpMapGetByKeyRange

func ExpMapGetByKeyRange(
	returnType MapReturnTypes,
	keyBegin *Expression,
	keyEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByKeyRange creates an expression that selects map items identified by key range (keyBegin inclusive, keyEnd exclusive). If keyBegin is nil, the range is less than keyEnd. If keyEnd is nil, the range is greater than equal to keyBegin. Expression returns selected data specified by returnType.

func ExpMapGetByKeyRelativeIndexRange

func ExpMapGetByKeyRelativeIndexRange(
	returnType MapReturnTypes,
	key *Expression,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByKeyRelativeIndexRange creates an expression that selects map items nearest to key and greater by index. Expression returns selected data specified by returnType.

Examples for ordered map [{0=17},{4=2},{5=15},{9=10}]:

* (value,index) = [selected items] * (5,0) = [{5=15},{9=10}] * (5,1) = [{9=10}] * (5,-1) = [{4=2},{5=15},{9=10}] * (3,2) = [{9=10}] * (3,-2) = [{0=17},{4=2},{5=15},{9=10}]

func ExpMapGetByKeyRelativeIndexRangeCount

func ExpMapGetByKeyRelativeIndexRangeCount(
	returnType MapReturnTypes,
	key *Expression,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByKeyRelativeIndexRangeCount creates an expression that selects map items nearest to key and greater by index with a count limit. Expression returns selected data specified by returnType.

Examples for ordered map [{0=17},{4=2},{5=15},{9=10}]:

* (value,index,count) = [selected items] * (5,0,1) = [{5=15}] * (5,1,2) = [{9=10}] * (5,-1,1) = [{4=2}] * (3,2,1) = [{9=10}] * (3,-2,2) = [{0=17}]

func ExpMapGetByRank

func ExpMapGetByRank(
	returnType MapReturnTypes,
	valueType ExpType,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByRank creates an expression that selects map item identified by rank and returns selected data specified by returnType.

func ExpMapGetByRankRange

func ExpMapGetByRankRange(
	returnType MapReturnTypes,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByRankRange creates an expression that selects map items starting at specified rank to the last ranked item and returns selected data specified by returnType.

func ExpMapGetByRankRangeCount

func ExpMapGetByRankRangeCount(
	returnType MapReturnTypes,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByRankRangeCount creates an expression that selects "count" map items starting at specified rank and returns selected data specified by returnType.

func ExpMapGetByValue

func ExpMapGetByValue(
	returnType MapReturnTypes,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByValue creates an expression that selects map items identified by value and returns selected data specified by returnType.

func ExpMapGetByValueList

func ExpMapGetByValueList(
	returnType MapReturnTypes,
	values *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByValueList creates an expression that selects map items identified by values and returns selected data specified by returnType.

func ExpMapGetByValueRange

func ExpMapGetByValueRange(
	returnType MapReturnTypes,
	valueBegin *Expression,
	valueEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByValueRange creates an expression that selects map items identified by value range (valueBegin inclusive, valueEnd exclusive) If valueBegin is nil, the range is less than valueEnd. If valueEnd is nil, the range is greater than equal to valueBegin.

Expression returns selected data specified by returnType.

func ExpMapGetByValueRelativeRankRange

func ExpMapGetByValueRelativeRankRange(
	returnType MapReturnTypes,
	value *Expression,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByValueRelativeRankRange creates an expression that selects map items nearest to value and greater by relative rank. Expression returns selected data specified by returnType.

Examples for map [{4=2},{9=10},{5=15},{0=17}]:

* (value,rank) = [selected items] * (11,1) = [{0=17}] * (11,-1) = [{9=10},{5=15},{0=17}]

func ExpMapGetByValueRelativeRankRangeCount

func ExpMapGetByValueRelativeRankRangeCount(
	returnType MapReturnTypes,
	value *Expression,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapGetByValueRelativeRankRangeCount creates an expression that selects map items nearest to value and greater by relative rank with a count limit. Expression returns selected data specified by returnType.

Examples for map [{4=2},{9=10},{5=15},{0=17}]:

* (value,rank,count) = [selected items] * (11,1,1) = [{0=17}] * (11,-1,1) = [{9=10}]

func ExpMapIncrement

func ExpMapIncrement(
	policy *MapPolicy,
	key *Expression,
	incr *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapIncrement creates an expression that increments values by incr for all items identified by key. Valid only for numbers.

func ExpMapPut

func ExpMapPut(
	policy *MapPolicy,
	key *Expression,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapPut creates an expression that writes key/value item to map bin.

func ExpMapPutItems

func ExpMapPutItems(
	policy *MapPolicy,
	amap *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapPutItems creates an expression that writes each map item to map bin.

func ExpMapRemoveByIndex

func ExpMapRemoveByIndex(
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByIndex creates an expression that removes map item identified by index.

func ExpMapRemoveByIndexRange

func ExpMapRemoveByIndexRange(
	returnType MapReturnTypes,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByIndexRange creates an expression that removes map items starting at specified index to the end of map. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByIndexRangeCount

func ExpMapRemoveByIndexRangeCount(
	returnType MapReturnTypes,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByIndexRangeCount creates an expression that removes "count" map items starting at specified index. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByKey

func ExpMapRemoveByKey(
	key *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByKey creates an expression that removes map item identified by key.

func ExpMapRemoveByKeyList

func ExpMapRemoveByKeyList(
	returnType MapReturnTypes,
	keys *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByKeyList creates an expression that removes map items identified by keys. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByKeyRange

func ExpMapRemoveByKeyRange(
	returnType MapReturnTypes,
	keyBegin *Expression,
	keyEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByKeyRange creates an expression that removes map items identified by key range (keyBegin inclusive, keyEnd exclusive). If keyBegin is nil, the range is less than keyEnd. If keyEnd is nil, the range is greater than equal to keyBegin. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByKeyRelativeIndexRange

func ExpMapRemoveByKeyRelativeIndexRange(
	returnType MapReturnTypes,
	key *Expression,
	index *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByKeyRelativeIndexRange creates an expression that removes map items nearest to key and greater by index. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

Examples for map [{0=17},{4=2},{5=15},{9=10}]:

* (value,index) = [removed items] * (5,0) = [{5=15},{9=10}] * (5,1) = [{9=10}] * (5,-1) = [{4=2},{5=15},{9=10}] * (3,2) = [{9=10}] * (3,-2) = [{0=17},{4=2},{5=15},{9=10}]

func ExpMapRemoveByKeyRelativeIndexRangeCount

func ExpMapRemoveByKeyRelativeIndexRangeCount(
	returnType MapReturnTypes,
	key *Expression,
	index *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByKeyRelativeIndexRangeCount creates an expression that removes map items nearest to key and greater by index with a count limit. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

Examples for map [{0=17},{4=2},{5=15},{9=10}]:

(value,index,count) = [removed items] * (5,0,1) = [{5=15}] * (5,1,2) = [{9=10}] * (5,-1,1) = [{4=2}] * (3,2,1) = [{9=10}] * (3,-2,2) = [{0=17}]

func ExpMapRemoveByRank

func ExpMapRemoveByRank(
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByRank creates an expression that removes map item identified by rank.

func ExpMapRemoveByRankRange

func ExpMapRemoveByRankRange(
	returnType MapReturnTypes,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByRankRange creates an expression that removes map items starting at specified rank to the last ranked item. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByRankRangeCount

func ExpMapRemoveByRankRangeCount(
	returnType MapReturnTypes,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByRankRangeCount creates an expression that removes "count" map items starting at specified rank. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByValue

func ExpMapRemoveByValue(
	returnType MapReturnTypes,
	value *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByValue creates an expression that removes map items identified by value. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByValueList

func ExpMapRemoveByValueList(
	returnType MapReturnTypes,
	values *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByValueList creates an expression that removes map items identified by values. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByValueRange

func ExpMapRemoveByValueRange(
	returnType MapReturnTypes,
	valueBegin *Expression,
	valueEnd *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByValueRange creates an expression that removes map items identified by value range (valueBegin inclusive, valueEnd exclusive). If valueBegin is nil, the range is less than valueEnd. If valueEnd is nil, the range is greater than equal to valueBegin. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

func ExpMapRemoveByValueRelativeRankRange

func ExpMapRemoveByValueRelativeRankRange(
	returnType MapReturnTypes,
	value *Expression,
	rank *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByValueRelativeRankRange creates an expression that removes map items nearest to value and greater by relative rank. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

Examples for map [{4=2},{9=10},{5=15},{0=17}]:

* (value,rank) = [removed items] * (11,1) = [{0=17}] * (11,-1) = [{9=10},{5=15},{0=17}]

func ExpMapRemoveByValueRelativeRankRangeCount

func ExpMapRemoveByValueRelativeRankRangeCount(
	returnType MapReturnTypes,
	value *Expression,
	rank *Expression,
	count *Expression,
	bin *Expression,
	ctx ...*CDTContext,
) *Expression

ExpMapRemoveByValueRelativeRankRangeCount creates an expression that removes map items nearest to value and greater by relative rank with a count limit. Valid returnType values are MapReturnType.NONE or MapReturnType.INVERTED.

Examples for map [{4=2},{9=10},{5=15},{0=17}]:

* (value,rank,count) = [removed items] * (11,1,1) = [{0=17}] * (11,-1,1) = [{9=10}]

func ExpMapSize

func ExpMapSize(bin *Expression, ctx ...*CDTContext) *Expression

ExpMapSize creates an expression that returns list size.

func ExpMapVal

func ExpMapVal(val MapValue) *Expression

ExpMapVal creates a Map bin Value

func ExpMax

func ExpMax(exps ...*Expression) *Expression

ExpMax creates expression that returns the maximum value in a variable number of expressions. All arguments must be the same type (integer or float). Requires server version 5.6.0+.

func ExpMemorySize

func ExpMemorySize() *Expression

ExpMemorySize creates expression that returns record size in memory. If server storage-engine is not memory nor data-in-memory, then zero is returned. This expression usually evaluates quickly because record meta data is cached in memory.

Requires server version between 5.3 inclusive and 7.0 exclusive. Use ExpRecordSize for server version 7.0+.

func ExpMin

func ExpMin(exps ...*Expression) *Expression

ExpMin creates expression that returns the minimum value in a variable number of expressions. All arguments must be the same type (integer or float). Requires server version 5.6.0+.

func ExpNilValue

func ExpNilValue() *Expression

ExpNilValue creates a a Nil Value

func ExpNot

func ExpNot(exp *Expression) *Expression

ExpNot creates a "not" operator expression.

func ExpNotEq

func ExpNotEq(left *Expression, right *Expression) *Expression

ExpNotEq creates a not equal (!=) expression

func ExpNumAbs

func ExpNumAbs(value *Expression) *Expression

ExpNumAbs creates operator that returns absolute value of a number. All arguments must resolve to integer or float. Requires server version 5.6.0+.

func ExpNumAdd

func ExpNumAdd(exps ...*Expression) *Expression

ExpNumAdd creates "add" (+) operator that applies to a variable number of expressions. Return sum of all `FilterExpressions` given. All arguments must resolve to the same type (integer or float). Requires server version 5.6.0+.

func ExpNumCeil

func ExpNumCeil(num *Expression) *Expression

ExpNumCeil creates expression that rounds a floating point number up to the closest integer value. The return type is float. Requires server version 5.6.0+.

func ExpNumDiv

func ExpNumDiv(exps ...*Expression) *Expression

ExpNumDiv creates "divide" (/) operator that applies to a variable number of expressions. If there is only one `FilterExpressions`, returns the reciprocal for that `FilterExpressions`. Otherwise, return the first `FilterExpressions` divided by the product of the rest. All `FilterExpressions` must resolve to the same type (integer or float). Requires server version 5.6.0+.

func ExpNumFloor

func ExpNumFloor(num *Expression) *Expression

ExpNumFloor creates expression that rounds a floating point number down to the closest integer value. The return type is float. Requires server version 5.6.0+.

func ExpNumLog

func ExpNumLog(num *Expression, base *Expression) *Expression

ExpNumLog creates "log" operator for logarithm of "num" with base "base". All arguments must resolve to floats. Requires server version 5.6.0+.

func ExpNumMod

func ExpNumMod(numerator *Expression, denominator *Expression) *Expression

ExpNumMod creates "modulo" (%) operator that determines the remainder of "numerator" divided by "denominator". All arguments must resolve to integers. Requires server version 5.6.0+.

func ExpNumMul

func ExpNumMul(exps ...*Expression) *Expression

ExpNumMul creates "multiply" (*) operator that applies to a variable number of expressions. Return the product of all `FilterExpressions`. If only one `FilterExpressions` is supplied, return that `FilterExpressions`. All `FilterExpressions` must resolve to the same type (integer or float). Requires server version 5.6.0+.

func ExpNumPow

func ExpNumPow(base *Expression, exponent *Expression) *Expression

ExpNumPow creates "power" operator that raises a "base" to the "exponent" power. All arguments must resolve to floats. Requires server version 5.6.0+.

func ExpNumSub

func ExpNumSub(exps ...*Expression) *Expression

ExpNumSub creates "subtract" (-) operator that applies to a variable number of expressions. If only one `FilterExpressions` is provided, return the negation of that argument. Otherwise, return the sum of the 2nd to Nth `FilterExpressions` subtracted from the 1st `FilterExpressions`. All `FilterExpressions` must resolve to the same type (integer or float). Requires server version 5.6.0+.

func ExpOr

func ExpOr(exps ...*Expression) *Expression

ExpOr creates a "or" (||) operator that applies to a variable number of expressions.

func ExpRecordSize

func ExpRecordSize() *Expression

ExpRecordSize creates an expression that returns the record size. This expression usually evaluates quickly because record meta data is cached in memory.

Requires server version 7.0+. This expression replaces ExpDeviceSize and ExpMemorySize since those older expressions are equivalent on server version 7.0+.

func ExpRegexCompare

func ExpRegexCompare(regex string, flags ExpRegexFlags, bin *Expression) *Expression

ExpRegexCompare creates a function like regular expression string operation.

func ExpSetName

func ExpSetName() *Expression

ExpSetName creates a function that returns record set name string.

func ExpSinceUpdate

func ExpSinceUpdate() *Expression

ExpSinceUpdate creates a expression that returns milliseconds since the record was last updated. This expression usually evaluates quickly because record meta data is cached in memory.

func ExpStringBin

func ExpStringBin(name string) *Expression

ExpStringBin creates a string bin expression.

func ExpStringVal

func ExpStringVal(val string) *Expression

ExpStringVal creates a String bin value

func ExpTTL

func ExpTTL() *Expression

ExpTTL creates a function that returns record expiration time (time to live) in integer seconds.

func ExpToFloat

func ExpToFloat(num *Expression) *Expression

ExpToFloat creates expression that converts a float to an integer. Requires server version 5.6.0+.

func ExpToInt

func ExpToInt(num *Expression) *Expression

ExpToInt creates expression that converts an integer to a float. Requires server version 5.6.0+.

func ExpUnknown

func ExpUnknown() *Expression

ExpUnknown creates unknown value. Used to intentionally fail an expression. The failure can be ignored with `ExpWriteFlags` `EVAL_NO_FAIL` or `ExpReadFlags` `EVAL_NO_FAIL`. Requires server version 5.6.0+.

func ExpValueArrayVal

func ExpValueArrayVal(val ValueArray) *Expression

ExpValueArrayVal creates a List bin Value

func ExpVar

func ExpVar(name string) *Expression

ExpVar will retrieve expression value from a variable. Requires server version 5.6.0+.

func ExpVoidTime

func ExpVoidTime() *Expression

ExpVoidTime creates a function that returns record expiration time expressed as 64 bit integer nanoseconds since 1970-01-01 epoch.

func ExpWildCardValue

func ExpWildCardValue() *Expression

ExpWildCardValue creates a WildCard Value

func (*Expression) Base64

func (fe *Expression) Base64() (string, Error)

type ExpressionArgument

type ExpressionArgument interface {
	// contains filtered or unexported methods
}

ExpressionArgument is used for passing arguments to filter expressions. The accptable arguments are: Value, ExpressionFilter, []*CDTContext

type FieldType

type FieldType int

FieldType represents the type of the field in Aerospike Wire Protocol

const (
	NAMESPACE FieldType = 0
	TABLE     FieldType = 1
	KEY       FieldType = 2

	DIGEST_RIPE FieldType = 4

	DIGEST_RIPE_ARRAY    FieldType = 6
	TRAN_ID              FieldType = 7 // user supplied transaction id, which is simply passed back
	SCAN_OPTIONS         FieldType = 8
	SOCKET_TIMEOUT       FieldType = 9
	RECORDS_PER_SECOND   FieldType = 10
	PID_ARRAY            FieldType = 11
	DIGEST_ARRAY         FieldType = 12
	MAX_RECORDS          FieldType = 13
	BVAL_ARRAY           FieldType = 15
	INDEX_NAME           FieldType = 21
	INDEX_RANGE          FieldType = 22
	INDEX_CONTEXT        FieldType = 23
	INDEX_TYPE           FieldType = 26
	UDF_PACKAGE_NAME     FieldType = 30
	UDF_FUNCTION         FieldType = 31
	UDF_ARGLIST          FieldType = 32
	UDF_OP               FieldType = 33
	QUERY_BINLIST        FieldType = 40
	BATCH_INDEX          FieldType = 41
	BATCH_INDEX_WITH_SET FieldType = 42
	FILTER_EXP           FieldType = 43
)

FieldType constants used in the Aerospike Wire Protocol.

type Filter

type Filter struct {
	// contains filtered or unexported fields
}

Filter specifies a query filter definition.

func NewContainsFilter

func NewContainsFilter(binName string, indexCollectionType IndexCollectionType, value interface{}, ctx ...*CDTContext) *Filter

NewContainsFilter creates a contains filter for query on collection index. Value can be an integer, string or a blob (byte array). Byte arrays are only supported on server v7+.

func NewContainsRangeFilter

func NewContainsRangeFilter(binName string, indexCollectionType IndexCollectionType, begin, end int64, ctx ...*CDTContext) *Filter

NewContainsRangeFilter creates a contains filter for query on ranges of data in a collection index.

func NewEqualFilter

func NewEqualFilter(binName string, value interface{}, ctx ...*CDTContext) *Filter

NewEqualFilter creates a new equality filter instance for query. Value can be an integer, string or a blob (byte array). Byte arrays are only supported on server v7+.

func NewFilter added in v7.2.0

func NewFilter(name string, indexCollectionType IndexCollectionType, valueParticleType int, begin Value, end Value, ctx []*CDTContext) *Filter

Create a filter for query. Range arguments must be longs or integers which can be cast to longs. String ranges are not supported.

func NewGeoRegionsContainingPointFilter

func NewGeoRegionsContainingPointFilter(binName, point string, ctx ...*CDTContext) *Filter

NewGeoRegionsContainingPointFilter creates a geospatial "containing point" filter for query. Argument must be a valid GeoJSON point.

func NewGeoRegionsContainingPointForCollectionFilter

func NewGeoRegionsContainingPointForCollectionFilter(binName string, collectionType IndexCollectionType, point string, ctx ...*CDTContext) *Filter

NewGeoRegionsContainingPointForCollectionFilter creates a geospatial "containing point" filter for query on collection index. Argument must be a valid GeoJSON point.

func NewGeoWithinRadiusFilter

func NewGeoWithinRadiusFilter(binName string, lng, lat, radius float64, ctx ...*CDTContext) *Filter

NewGeoWithinRadiusFilter creates a geospatial "within radius" filter for query. Arguments must be valid longitude/latitude/radius (meters) values.

func NewGeoWithinRadiusForCollectionFilter

func NewGeoWithinRadiusForCollectionFilter(binName string, collectionType IndexCollectionType, lng, lat, radius float64, ctx ...*CDTContext) *Filter

NewGeoWithinRadiusForCollectionFilter creates a geospatial "within radius" filter for query on collection index. Arguments must be valid longitude/latitude/radius (meters) values.

func NewGeoWithinRegionFilter

func NewGeoWithinRegionFilter(binName, region string, ctx ...*CDTContext) *Filter

NewGeoWithinRegionFilter creates a geospatial "within region" filter for query. Argument must be a valid GeoJSON region.

func NewGeoWithinRegionForCollectionFilter

func NewGeoWithinRegionForCollectionFilter(binName string, collectionType IndexCollectionType, region string, ctx ...*CDTContext) *Filter

NewGeoWithinRegionForCollectionFilter creates a geospatial "within region" filter for query on collection index. Argument must be a valid GeoJSON region.

func NewRangeFilter

func NewRangeFilter(binName string, begin int64, end int64, ctx ...*CDTContext) *Filter

NewRangeFilter creates a range filter for query. Range arguments must be int64 values. String ranges are not supported.

func (*Filter) EstimateSize

func (fltr *Filter) EstimateSize() (int, Error)

EstimateSize will estimate the size of the filter for wire protocol

func (*Filter) IndexCollectionType

func (fltr *Filter) IndexCollectionType() IndexCollectionType

IndexCollectionType returns filter's index type.

func (*Filter) String

func (fltr *Filter) String() string

type FloatValue

type FloatValue float64

FloatValue encapsulates an float64 value.

func NewFloatValue

func NewFloatValue(value float64) FloatValue

NewFloatValue generates a FloatValue instance.

func (FloatValue) EstimateSize

func (vl FloatValue) EstimateSize() (int, Error)

EstimateSize returns the size of the FloatValue in wire protocol.

func (FloatValue) GetObject

func (vl FloatValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (FloatValue) GetType

func (vl FloatValue) GetType() int

GetType returns wire protocol value type.

func (FloatValue) String

func (vl FloatValue) String() string

String implements Stringer interface.

type GenerationPolicy

type GenerationPolicy int

GenerationPolicy determines how to handle record writes based on record generation.

const (
	// NONE means: Do not use record generation to restrict writes.
	NONE GenerationPolicy = iota

	// EXPECT_GEN_EQUAL means: Update/Delete record if expected generation is equal to server generation. Otherwise, fail.
	EXPECT_GEN_EQUAL

	// EXPECT_GEN_GT means: Update/Delete record if expected generation greater than the server generation. Otherwise, fail.
	// This is useful for restore after backup.
	EXPECT_GEN_GT
)

type GeoJSONValue

type GeoJSONValue string

GeoJSONValue encapsulates a 2D Geo point. Supported by Aerospike 3.6.1 servers and later only.

func NewGeoJSONValue

func NewGeoJSONValue(value string) GeoJSONValue

NewGeoJSONValue generates a GeoJSONValue instance.

func (GeoJSONValue) EstimateSize

func (vl GeoJSONValue) EstimateSize() (int, Error)

EstimateSize returns the size of the GeoJSONValue in wire protocol.

func (GeoJSONValue) GetObject

func (vl GeoJSONValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (GeoJSONValue) GetType

func (vl GeoJSONValue) GetType() int

GetType returns wire protocol value type.

func (GeoJSONValue) String

func (vl GeoJSONValue) String() string

String implements Stringer interface.

type HLLPolicy

type HLLPolicy struct {
	// contains filtered or unexported fields
}

HLLPolicy determines the HyperLogLog operation policy.

func DefaultHLLPolicy

func DefaultHLLPolicy() *HLLPolicy

DefaultHLLPolicy uses the default policy when performing HLL operations.

func NewHLLPolicy

func NewHLLPolicy(flags int) *HLLPolicy

NewHLLPolicy uses specified HLLWriteFlags when performing HLL operations.

type HLLValue

type HLLValue []byte

HLLValue encapsulates a HyperLogLog value.

func NewHLLValue

func NewHLLValue(bytes []byte) HLLValue

NewHLLValue generates a ByteValue instance.

func (HLLValue) EstimateSize

func (vl HLLValue) EstimateSize() (int, Error)

EstimateSize returns the size of the HLLValue in wire protocol.

func (HLLValue) GetObject

func (vl HLLValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (HLLValue) GetType

func (vl HLLValue) GetType() int

GetType returns wire protocol value type.

func (HLLValue) String

func (vl HLLValue) String() string

String implements Stringer interface.

type Host

type Host struct {

	// Host name or IP address of database server.
	Name string

	//TLSName defines the TLS certificate name used for secure connections.
	TLSName string

	// Port of database server.
	Port int
}

Host name/port of database server.

func NewHost

func NewHost(name string, port int) *Host

NewHost initializes new host instance.

func (*Host) String

func (h *Host) String() string

Implements stringer interface

type IndexCollectionType

type IndexCollectionType int

IndexCollectionType is the secondary index collection type.

const (

	// ICT_DEFAULT is the Normal scalar index.
	ICT_DEFAULT IndexCollectionType = iota

	// ICT_LIST is Index list elements.
	ICT_LIST

	// ICT_MAPKEYS is Index map keys.
	ICT_MAPKEYS

	// ICT_MAPVALUES is Index map values.
	ICT_MAPVALUES
)

func (IndexCollectionType) String

func (ict IndexCollectionType) String() string

type IndexTask

type IndexTask struct {
	// contains filtered or unexported fields
}

IndexTask is used to poll for long running create index completion.

func NewIndexTask

func NewIndexTask(cluster *Cluster, namespace string, indexName string) *IndexTask

NewIndexTask initializes a task with fields needed to query server nodes.

func (*IndexTask) IsDone

func (tski *IndexTask) IsDone() (bool, Error)

IsDone queries all nodes for task completion status.

func (*IndexTask) OnComplete

func (tski *IndexTask) OnComplete() chan Error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type IndexType

type IndexType string

IndexType the type of the secondary index.

const (
	// NUMERIC specifies an index on numeric values.
	NUMERIC IndexType = "NUMERIC"

	// STRING specifies an index on string values.
	STRING IndexType = "STRING"

	// BLOB specifies a []byte index. Requires server version 7.0+.
	BLOB IndexType = "BLOB"

	// GEO2DSPHERE specifies 2-dimensional spherical geospatial index.
	GEO2DSPHERE IndexType = "GEO2DSPHERE"
)

type InfinityValue

type InfinityValue struct{}

InfinityValue is an empty value.

func NewInfinityValue

func NewInfinityValue() InfinityValue

NewInfinityValue generates a InfinityValue instance.

func (InfinityValue) EstimateSize

func (vl InfinityValue) EstimateSize() (int, Error)

EstimateSize returns the size of the InfinityValue in wire protocol.

func (InfinityValue) GetObject

func (vl InfinityValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (InfinityValue) GetType

func (vl InfinityValue) GetType() int

GetType returns wire protocol value type.

func (InfinityValue) String

func (vl InfinityValue) String() string

type InfoPolicy

type InfoPolicy struct {

	// Info command socket timeout.
	// Default is 2 seconds.
	Timeout time.Duration
}

InfoPolicy contains attributes used for info commands.

func NewInfoPolicy

func NewInfoPolicy() *InfoPolicy

NewInfoPolicy generates a new InfoPolicy with default values.

type IntegerValue

type IntegerValue int

IntegerValue encapsulates an integer value.

func NewIntegerValue

func NewIntegerValue(value int) IntegerValue

NewIntegerValue generates an IntegerValue instance.

func (IntegerValue) EstimateSize

func (vl IntegerValue) EstimateSize() (int, Error)

EstimateSize returns the size of the IntegerValue in wire protocol.

func (IntegerValue) GetObject

func (vl IntegerValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (IntegerValue) GetType

func (vl IntegerValue) GetType() int

GetType returns wire protocol value type.

func (IntegerValue) String

func (vl IntegerValue) String() string

String implements Stringer interface.

type JsonValue

type JsonValue map[string]interface{}

JsonValue encapsulates a Json map. Supported by Aerospike 3+ servers only.

func NewJsonValue

func NewJsonValue(vmap map[string]interface{}) JsonValue

NewJsonValue generates a JsonValue instance.

func (JsonValue) EstimateSize

func (vl JsonValue) EstimateSize() (int, Error)

EstimateSize returns the size of the JsonValue in wire protocol.

func (JsonValue) GetObject

func (vl JsonValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (JsonValue) GetType

func (vl JsonValue) GetType() int

GetType returns wire protocol value type.

func (JsonValue) String

func (vl JsonValue) String() string

type Key

type Key struct {
	// contains filtered or unexported fields
}

Key is the unique record identifier. Records can be identified using a specified namespace, an optional set name, and a user defined key which must be unique within a set. Records can also be identified by namespace/digest which is the combination used on the server.

func (*Key) Digest

func (ky *Key) Digest() []byte

Digest returns key digest.

func (*Key) Equals

func (ky *Key) Equals(other *Key) bool

Equals uses key digests to compare key equality.

func (*Key) Namespace

func (ky *Key) Namespace() string

Namespace returns key's namespace.

func (*Key) PartitionId

func (ky *Key) PartitionId() int

PartitionId returns the partition that the key belongs to.

func (*Key) SetDigest

func (ky *Key) SetDigest(digest []byte) Error

SetDigest sets a custom hash

func (*Key) SetName

func (ky *Key) SetName() string

SetName returns key's set name.

func (*Key) SetValue

func (ky *Key) SetValue(val Value) Error

SetValue sets the Key's value and recompute's its digest without allocating new memory. This allows the keys to be reusable.

func (*Key) String

func (ky *Key) String() string

String implements Stringer interface and returns string representation of key.

func (*Key) Value

func (ky *Key) Value() Value

Value returns key's value.

type Language

type Language string

Language specifies User defined function languages.

const (

	// LUA embedded programming language.
	LUA Language = "LUA"
)

type ListIter

type ListIter interface {
	PackList(buf BufferEx) (int, error)
	Len() int
}

ListIter allows to define general maps of your own type to be used in the Go client without the use of reflection. function PackList should be exactly Like the following (Do not change, just copy/paste and adapt PackXXX methods):

func (cs *CustomSlice) PackList(buf aerospike.BufferEx) (int, error) {
	size := 0
	for _, elem := range cs {
		n, err := PackXXX(buf, elem)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}
Example (Int)
package main

import (
	"fmt"
	"log"

	as "github.com/aerospike/aerospike-client-go/v7"
)

/*
myListInt
*/
var _ as.ListIter = myListInt([]int{})

// your custom list
type myListInt []int

func (ml myListInt) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackInt64(buf, int64(elem))
		size += n
		if err != nil {
			return size, err
		}
	}

	return size, nil
}

func (ml myListInt) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	var v as.Value = as.NewValue(myListInt([]int{1, 2, 3}))
	key, err := as.NewKey(*namespace, "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}
Output:

[1 2 3]
Example (String)
package main

import (
	"fmt"
	"log"

	as "github.com/aerospike/aerospike-client-go/v7"
)

/*
myListString
*/
var _ as.ListIter = myListString([]string{})

// your custom list
type myListString []string

func (ml myListString) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackString(buf, elem)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (ml myListString) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	var v as.Value = as.NewValue(myListString([]string{"a", "b", "c"}))
	key, err := as.NewKey(*namespace, "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}
Output:

[a b c]
Example (Time)
package main

import (
	"fmt"
	"log"
	"time"

	as "github.com/aerospike/aerospike-client-go/v7"
)

/*
myListTime
*/
var _ as.ListIter = myListTime([]time.Time{})

// your custom list
type myListTime []time.Time

func (ml myListTime) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackInt64(buf, elem.UnixNano())
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (ml myListTime) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	now1 := time.Unix(123123123, 0)
	now2 := time.Unix(123123124, 0)
	now3 := time.Unix(123123125, 0)
	var v as.Value = as.NewValue(myListTime([]time.Time{now1, now2, now3}))
	key, err := as.NewKey(*namespace, "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}
Output:

[123123123000000000 123123124000000000 123123125000000000]

type ListOrderType

type ListOrderType int

ListOrderType determines the order of returned values in CDT list operations.

const (
	// ListOrderUnordered signifies that list is not ordered. This is the default.
	ListOrderUnordered ListOrderType = 0

	// ListOrderOrdered signifies that list is Ordered.
	ListOrderOrdered ListOrderType = 1
)

Map storage order.

type ListPolicy

type ListPolicy struct {
	// contains filtered or unexported fields
}

ListPolicy directives when creating a list and writing list items.

func DefaultListPolicy

func DefaultListPolicy() *ListPolicy

DefaultListPolicy returns the default policy for CDT list operations.

func NewListPolicy

func NewListPolicy(order ListOrderType, flags int) *ListPolicy

NewListPolicy creates a policy with directives when creating a list and writing list items. Flags are ListWriteFlags. You can specify multiple by `or`ing them together.

type ListReturnType

type ListReturnType int

ListReturnType determines the returned values in CDT List operations.

const (
	// ListReturnTypeNone will not return a result.
	ListReturnTypeNone ListReturnType = 0

	// ListReturnTypeIndex will return index offset order.
	// 0 = first key
	// N = Nth key
	// -1 = last key
	ListReturnTypeIndex ListReturnType = 1

	// ListReturnTypeReverseIndex will return reverse index offset order.
	// 0 = last key
	// -1 = first key
	ListReturnTypeReverseIndex ListReturnType = 2

	// ListReturnTypeRank will return value order.
	// 0 = smallest value
	// N = Nth smallest value
	// -1 = largest value
	ListReturnTypeRank ListReturnType = 3

	// ListReturnTypeReverseRank will return reverse value order.
	// 0 = largest value
	// N = Nth largest value
	// -1 = smallest value
	ListReturnTypeReverseRank ListReturnType = 4

	// ListReturnTypeCount will return count of items selected.
	ListReturnTypeCount ListReturnType = 5

	// ListReturnTypeValue will return value for single key read and value list for range read.
	ListReturnTypeValue ListReturnType = 7

	// ListReturnTypeExists returns true if count > 0.
	ListReturnTypeExists ListReturnType = 13

	// ListReturnTypeInverted will invert meaning of list command and return values. For example:
	// ListOperation.getByIndexRange(binName, index, count, ListReturnType.INDEX | ListReturnType.INVERTED)
	// With the INVERTED flag enabled, the items outside of the specified index range will be returned.
	// The meaning of the list command can also be inverted. For example:
	// ListOperation.removeByIndexRange(binName, index, count, ListReturnType.INDEX | ListReturnType.INVERTED);
	// With the INVERTED flag enabled, the items outside of the specified index range will be removed and returned.
	ListReturnTypeInverted ListReturnType = 0x10000
)

type ListSortFlags

type ListSortFlags int

ListSortFlags detemines sort flags for CDT lists

const (
	// ListSortFlagsDefault is the default sort flag for CDT lists, and sort in Ascending order.
	ListSortFlagsDefault ListSortFlags = 0
	// ListSortFlagsDescending will sort the contents of the list in descending order.
	ListSortFlagsDescending ListSortFlags = 1
	// ListSortFlagsDropDuplicates will drop duplicate values in the results of the CDT list operation.
	ListSortFlagsDropDuplicates ListSortFlags = 2
)

type ListValue

type ListValue []interface{}

ListValue encapsulates any arbitrary array. Supported by Aerospike 3+ servers only.

func NewListValue

func NewListValue(list []interface{}) ListValue

NewListValue generates a ListValue instance.

func (ListValue) EstimateSize

func (vl ListValue) EstimateSize() (int, Error)

EstimateSize returns the size of the ListValue in wire protocol.

func (ListValue) GetObject

func (vl ListValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (ListValue) GetType

func (vl ListValue) GetType() int

GetType returns wire protocol value type.

func (ListValue) String

func (vl ListValue) String() string

String implements Stringer interface.

type ListerValue

type ListerValue struct {
	// contains filtered or unexported fields
}

ListerValue encapsulates any arbitrary array. Supported by Aerospike 3+ servers only.

func NewListerValue

func NewListerValue(list ListIter) *ListerValue

NewListerValue generates a NewListerValue instance.

func (*ListerValue) EstimateSize

func (vl *ListerValue) EstimateSize() (int, Error)

EstimateSize returns the size of the ListerValue in wire protocol.

func (*ListerValue) GetObject

func (vl *ListerValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (*ListerValue) GetType

func (vl *ListerValue) GetType() int

GetType returns wire protocol value type.

func (*ListerValue) String

func (vl *ListerValue) String() string

String implements Stringer interface.

type LongValue

type LongValue int64

LongValue encapsulates an int64 value.

func NewLongValue

func NewLongValue(value int64) LongValue

NewLongValue generates a LongValue instance.

func (LongValue) EstimateSize

func (vl LongValue) EstimateSize() (int, Error)

EstimateSize returns the size of the LongValue in wire protocol.

func (LongValue) GetObject

func (vl LongValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (LongValue) GetType

func (vl LongValue) GetType() int

GetType returns wire protocol value type.

func (LongValue) String

func (vl LongValue) String() string

String implements Stringer interface.

type MapIter

type MapIter interface {
	PackMap(buf BufferEx) (int, error)
	Len() int
}

MapIter allows to define general maps of your own type to be used in the Go client without the use of reflection. function PackMap should be exactly Like the following (Do not change, just copy/paste and adapt PackXXX methods):

func (cm *CustomMap) PackMap(buf aerospike.BufferEx) (int, error) {
	size := 0
	for k, v := range cm {
		n, err := PackXXX(buf, k)
		size += n
		if err != nil {
			return size, err
		}

		n, err = PackXXX(buf, v)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}
Example
package main

import (
	"fmt"
	"log"
	"time"

	as "github.com/aerospike/aerospike-client-go/v7"
)

/*
myMapStringTime
*/
var _ as.MapIter = myMapStringTime(map[string]time.Time{})

// your custom list
type myMapStringTime map[string]time.Time

func (mm myMapStringTime) PackMap(buf as.BufferEx) (int, error) {
	size := 0
	for key, val := range mm {
		n, err := as.PackString(buf, key)
		size += n
		if err != nil {
			return size, err
		}

		n, err = as.PackInt64(buf, val.UnixNano())
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (mm myMapStringTime) Len() int {
	return len(mm)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	now := time.Unix(123123123, 0)
	var v as.Value = as.NewValue(myMapStringTime(map[string]time.Time{"now": now}))
	key, err := as.NewKey(*namespace, "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}
Output:

map[now:123123123000000000]

type MapOrderTypes

type MapOrderTypes = mapOrderType

MapOrderTypes exports the type of individual MapOrderType values

type MapPair

type MapPair struct{ Key, Value interface{} }

MapPair is used when the client returns sorted maps from the server Since the default map in Go is a hash map, we will use a slice to return the results in server order

type MapPolicy

type MapPolicy struct {
	// contains filtered or unexported fields
}

MapPolicy directives when creating a map and writing map items.

func DefaultMapPolicy

func DefaultMapPolicy() *MapPolicy

DefaultMapPolicy returns the default map policy

func NewMapPolicy

func NewMapPolicy(order mapOrderType, writeMode *mapWriteMode) *MapPolicy

NewMapPolicy creates a MapPolicy with WriteMode. Use with servers before v4.3.

func NewMapPolicyWithFlags

func NewMapPolicyWithFlags(order mapOrderType, flags int) *MapPolicy

NewMapPolicyWithFlags creates a MapPolicy with WriteFlags. Use with servers v4.3+. Flags are MapWriteFlags. You can specify multiple flags by 'or'ing them together.

func NewMapPolicyWithFlagsAndPersistedIndex

func NewMapPolicyWithFlagsAndPersistedIndex(order mapOrderType, flags int) *MapPolicy

NewMapPolicyWithFlagsAndPersistedIndex creates a MapPolicy with WriteFlags that persists the map index. A map index improves lookup performance, but requires more storage. A map index can be created for a top-level ordered map only. Nested and unordered map indexes are not supported. Use with servers v7+. Flags are MapWriteFlags. You can specify multiple flags by 'or'ing them together.

type MapReturnTypes

type MapReturnTypes = mapReturnType

MapReturnTypes exports the type of individual MapReturnType values

type MapValue

type MapValue map[interface{}]interface{}

MapValue encapsulates an arbitrary map. Supported by Aerospike 3+ servers only.

func NewMapValue

func NewMapValue(vmap map[interface{}]interface{}) MapValue

NewMapValue generates a MapValue instance.

func (MapValue) EstimateSize

func (vl MapValue) EstimateSize() (int, Error)

EstimateSize returns the size of the MapValue in wire protocol.

func (MapValue) GetObject

func (vl MapValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (MapValue) GetType

func (vl MapValue) GetType() int

GetType returns wire protocol value type.

func (MapValue) String

func (vl MapValue) String() string

type MapWriteModes

type MapWriteModes = mapWriteMode

MapWriteModes exports the type of individual MapWriteMode values

type MapperValue

type MapperValue struct {
	// contains filtered or unexported fields
}

MapperValue encapsulates an arbitrary map which implements a MapIter interface. Supported by Aerospike 3+ servers only.

func NewMapperValue

func NewMapperValue(vmap MapIter) *MapperValue

NewMapperValue generates a MapperValue instance.

func (*MapperValue) EstimateSize

func (vl *MapperValue) EstimateSize() (int, Error)

EstimateSize returns the size of the MapperValue in wire protocol.

func (*MapperValue) GetObject

func (vl *MapperValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (*MapperValue) GetType

func (vl *MapperValue) GetType() int

GetType returns wire protocol value type.

func (*MapperValue) String

func (vl *MapperValue) String() string

type MetricsPolicy added in v7.3.0

type MetricsPolicy struct {
	// Histogram type specifies if the histogram should be [histogram.Linear] or [histogram.Logarithmic].
	//
	// Default: [histogram.Logarithmic]
	HistogramType histogram.Type

	// LatencyColumns defines the number of elapsed time range buckets in latency histograms.
	//
	// Default: 24
	LatencyColumns int //= 24;

	// Depending on the type of histogram:
	//
	// For logarithmic histograms, the buckets are: <base^1 <base^2 <base^3 ... >=base^(columns-1)
	//
	//  // LatencyColumns=5 latencyBase=8
	//  <8µs <64µs <512µs <4096µs >=4096
	//
	//  // LatencyColumns=7 LatencyBase=4
	//  <4µs <16µs <64µs <256µs <1024µs <4096 >=4096µs
	//
	// For linear histograms, the buckets are: <base <base*2 <base*3 ... >=base*(column-1)
	//
	//  // LatencyColumns=5 latencyBase=15
	//  <15µs <30µs <45µs <60µs >=60µs
	//
	//  // LatencyColumns=7 LatencyBase=5
	//  <5µs <10µs <15µs <20µs <25µs <30µs >=30µs
	//
	// Default: 2
	LatencyBase int //= 2;
}

MetricsPolicy specifies client periodic metrics configuration.

func DefaultMetricsPolicy added in v7.3.0

func DefaultMetricsPolicy() *MetricsPolicy

type MultiPolicy

type MultiPolicy struct {
	BasePolicy

	// Maximum number of concurrent requests to server nodes at any point in time.
	// If there are 16 nodes in the cluster and maxConcurrentNodes is 8, then queries
	// will be made to 8 nodes in parallel.  When a query completes, a new query will
	// be issued until all 16 nodes have been queried.
	// Default (0) is to issue requests to all server nodes in parallel.
	// 1 will to issue requests to server nodes one by one avoiding parallel queries.
	MaxConcurrentNodes int

	// MaxRecords approximates the number of records to return to the client. This number is divided by the
	// number of nodes involved in the query. The actual number of records returned
	// may be less than MaxRecords if node record counts are small and unbalanced across
	// nodes.
	//
	// This field is supported on server versions >= 4.9.
	//
	// Default: 0 (do not limit record count)
	MaxRecords int64

	// RecordsPerSecond limits returned records per second (rps) rate for each server.
	// Will not apply rps limit if recordsPerSecond is zero (default).
	// Currently only applicable to a query without a defined filter.
	RecordsPerSecond int

	// Number of records to place in queue before blocking.
	// Records received from multiple server nodes will be placed in a queue.
	// A separate goroutine consumes these records in parallel.
	// If the queue is full, the producer goroutines will block until records are consumed.
	RecordQueueSize int //= 50

	// Indicates if bin data is retrieved. If false, only record digests are retrieved.
	IncludeBinData bool //= true;

	// RawCDT specifies that the value of the CDT fields (Maps and Lists) should not be unpacked/decoded.
	// This is only used internally by Aerospike for Backup purposes and should not be used by 3rd parties.
	RawCDT bool
}

MultiPolicy contains parameters for policy attributes used in query and scan operations.

func NewMultiPolicy

func NewMultiPolicy() *MultiPolicy

NewMultiPolicy initializes a MultiPolicy instance with default values. It disables TotalTimeout and sets MaxRetries. Set MaxRetries for non-aggregation queries with a nil filter on server versions >= 4.9. All other queries are not retried.

The latest servers support retries on individual data partitions. This feature is useful when a cluster is migrating and partition(s) are missed or incomplete on the first query attempt.

If the first query attempt misses 2 of 4096 partitions, then only those 2 partitions are retried in the next query attempt from the last key digest received for each respective partition. A higher default MaxRetries is used because it's wasteful to invalidate all query results because a single partition was missed.

type Node

type Node struct {
	// contains filtered or unexported fields
}

Node represents an Aerospike Database Server Node

func (*Node) Close

func (nd *Node) Close()

Close marks node as inactive and closes all of its pooled connections.

func (*Node) Equals

func (nd *Node) Equals(other *Node) bool

Equals compares equality of two nodes based on their names.

func (*Node) GetAliases

func (nd *Node) GetAliases() []*Host

GetAliases returns node aliases.

func (*Node)