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OrientGo is a Go client for the OrientDB database.

OrientGo Logo


OrientDB versions supported: 2.0.15 - 2.1.5

Not supported versions:

  • 2.1.0 (bug in OrientDB, see #28)
  • 2.1.3 (broken protocol, see #39)

Driver is no longer maintained and seeking for a new owner.


Original ogonori API is deprecated. Still, it's source code have been frozen in v1.0 branch. To use it, simply replace imports with

Supported features:
  • Mostly any SQL queries, commands and batch requests.
  • Server-side scripts (via ScriptCommand or functions).
  • Command results conversion to custom types via mapstructure.
  • Direct CRUD operations on Document or BytesRecord objects.
  • Management of databases and record clusters.
  • Can be used for the golang database/sql API, with some cautions (see below).
  • Only supports OrientDB 2.x series.
Not supported yet:
  • OrientDB 1.x.
  • Servers with cluster configuration (not tested).
  • Fetch plans are temporary disabled due to internal changes.
  • Transactions in Go. Transactions in JS can be used instead.
  • Live queries.
  • Command results streaming (#26).
  • OrientDB CUSTOM type.
  • ORM-like API. See Issue #6.
Caveat on using OrientGo as a database/sql API driver

WARNING: database/sql API is disabled for now.

The golang database/sql API has some constraints that can be make it painful to work with OrientDB. For example:

  • When you insert a record, the Go database/sql API only allows one to return a single int64 identifier for the record, but OrientDB uses as a compound int16:int64 RID, so getting the RID of records you just inserted requires another round trip to the database to query the RID.

Also, since OrientDB transactions are not supported, the Tx portion of the database/sql API is not yet implemented.


You are welcome to initiate pull request and suggest a more user-friendly API. We will try to review them ASAP.

How to run functional tests:

  1. Install Docker

  2. Pull OrientDB image: docker pull dennwc/orientdb:2.1

  3. go test -v ./...


Dial example - dial_example_test.go


The MIT License

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View Source
const (
	// DefaultFetchPlan is an empty fetch plan. Let the database decide. Usually means "do not follow any links".
	DefaultFetchPlan = FetchPlan("")
	// NoFollow is a fetch plan that does not follow any links
	NoFollow = FetchPlan("*:0")
	// FollowAll is a fetch plan that follows all links
	FollowAll = FetchPlan("*:-1")
View Source
const (
	LangSQL    = ScriptLang("sql")
	LangJS     = ScriptLang("javascript")
	LangGroovy = ScriptLang("groovy")

    List of supported server-side script languages

    View Source
    const (
    	ProtoBinary = "binary"

      Default protocols


      View Source
      var ErrNoRecord = fmt.Errorf("no records returned, while expecting one")

        ErrNoRecord is returned when trying to deserialize an empty result set into a single value.

        View Source
        var MaxConnections = 6

          MaxConnections limits the number of opened connections.

          View Source
          var TagName = "mapstructure"

            TagName is a name for a struct tag used for types conversion using reflect


            func MarshalContent

            func MarshalContent(o interface{}) string

              MarshalContent is a helper for constructing SQL commands with CONTENT keyword. Shorthand for json.Marshal. Will panic on errors.

              func RegException

              func RegException(class string, fnc func(e Exception) Exception)

                RegException registers a function to convert server exception based on it's class.

                func RegisterMapDecoderHook

                func RegisterMapDecoderHook(hook mapstructure.DecodeHookFunc)

                  RegisterMapDecoderHook allows to register additional hook for map decoder

                  func RegisterProto

                  func RegisterProto(name string, dial func(addr string) (DBConnection, error))

                    RegisterProto registers a new protocol for Dial command

                    func RegisterRecordFormat

                    func RegisterRecordFormat(name string, fnc func() RecordSerializer)

                      RegisterRecordFormat registers RecordSerializer with a given class name

                      func SerializeAnyStreamable

                      func SerializeAnyStreamable(o CustomSerializable) ([]byte, error)

                        SerializeAnyStreamable serializes a given object

                        func SetDefaultRecordFormat

                        func SetDefaultRecordFormat(name string)

                          SetDefaultRecordFormat sets default record serializer

                          func SetRetryCountConcurrent

                          func SetRetryCountConcurrent(n int)

                            SetRetryCountConcurrent sets a retry count when ErrConcurrentModification occurs.

                            n == 0 - use default value

                            n < 0 - no limit for retries

                            n > 0 - maximum of n retries


                            type Admin

                            type Admin struct {
                            	// contains filtered or unexported fields

                              Admin wraps a database management session.

                              func (*Admin) Close

                              func (a *Admin) Close() error

                                Close closes DB management session.

                                func (*Admin) CreateDatabase

                                func (a *Admin) CreateDatabase(name string, dbType DatabaseType, storageType StorageType) error

                                  CreateDatabase creates a new database with given database type (Document or Graph) and storage type (Persistent or Volatile).

                                  func (*Admin) DatabaseExists

                                  func (a *Admin) DatabaseExists(name string, storageType StorageType) (bool, error)

                                    DatabaseExists checks if database with given name and storage type exists.

                                    func (*Admin) DropDatabase

                                    func (a *Admin) DropDatabase(name string, storageType StorageType) error

                                      DropDatabase removes database from the server.

                                      func (*Admin) ListDatabases

                                      func (a *Admin) ListDatabases() (map[string]string, error)

                                        ListDatabases returns a list of databases in a form:

                                        dbname: dbpath

                                        type BinaryRecordFormat

                                        type BinaryRecordFormat struct {
                                        	// contains filtered or unexported fields

                                        func (BinaryRecordFormat) FromStream

                                        func (f BinaryRecordFormat) FromStream(data []byte) (out ORecord, err error)

                                        func (*BinaryRecordFormat) SetGlobalPropertyFunc

                                        func (f *BinaryRecordFormat) SetGlobalPropertyFunc(fnc GlobalPropertyFunc)

                                        func (BinaryRecordFormat) String

                                        func (BinaryRecordFormat) String() string

                                        func (BinaryRecordFormat) ToStream

                                        func (f BinaryRecordFormat) ToStream(w io.Writer, rec ORecord) error

                                        type BytesRecord

                                        type BytesRecord struct {
                                        	RID  RID
                                        	Vers int
                                        	Data []byte

                                          BytesRecord is a rawest representation of a record. It's schema less. Use this if you need to store []byte without matter about the content. Useful also to store multimedia contents and binary files.

                                          func NewBytesRecord

                                          func NewBytesRecord() *BytesRecord

                                          func (BytesRecord) Content

                                          func (r BytesRecord) Content() ([]byte, error)

                                          func (*BytesRecord) Fill

                                          func (r *BytesRecord) Fill(rid RID, version int, content []byte) error

                                            Fill sets identity, version and raw data of the record

                                            func (BytesRecord) GetIdentity

                                            func (r BytesRecord) GetIdentity() RID

                                              GetIdentity returns a record RID

                                              func (BytesRecord) GetRecord

                                              func (r BytesRecord) GetRecord() interface{}

                                                GetRecord returns a record data

                                                func (BytesRecord) RecordType

                                                func (r BytesRecord) RecordType() RecordType

                                                func (*BytesRecord) SetRID

                                                func (r *BytesRecord) SetRID(rid RID)

                                                func (*BytesRecord) SetVersion

                                                func (r *BytesRecord) SetVersion(v int)

                                                func (BytesRecord) String

                                                func (r BytesRecord) String() string

                                                func (BytesRecord) Version

                                                func (r BytesRecord) Version() int

                                                type Classer

                                                type Classer interface {
                                                	// GetClassName return a Java class name for an object
                                                	GetClassName() string

                                                  Classer is an interface for object that have analogs in OrientDB Java code

                                                  type Client

                                                  type Client struct {
                                                  	// contains filtered or unexported fields

                                                    Client represents connection to OrientDB server. It is safe for concurrent use.

                                                    func Dial

                                                    func Dial(addr string) (*Client, error)

                                                      Dial opens a new connection to OrientDB server.

                                                      For now, user must import protocol implementation, which will be used for connection:

                                                      import _  ""

                                                      Address must be in host:port format. Connection to OrientDB cluster is not supported yet.

                                                      Returned Client uses connection pool under the hood, so it can be shared between goroutines.

                                                      func (*Client) Auth

                                                      func (c *Client) Auth(user, pass string) (*Admin, error)

                                                        Auth initiates a new administration session with OrientDB server, allowing to manage databases.

                                                        func (*Client) Close

                                                        func (c *Client) Close() error

                                                          Close must be called to close all active DB connections.

                                                          func (*Client) Open

                                                          func (c *Client) Open(name string, dbType DatabaseType, user, pass string) (*Database, error)

                                                            Open initiates a new database session, allowing to make queries to selected database.

                                                            For database management use Auth instead.

                                                            type CustomSerializable

                                                            type CustomSerializable interface {

                                                              CustomSerializable is an interface for objects that can be sent on wire

                                                              type DBAdmin

                                                              type DBAdmin interface {
                                                              	DatabaseExists(name string, storageType StorageType) (bool, error)
                                                              	CreateDatabase(name string, dbType DatabaseType, storageType StorageType) error
                                                              	DropDatabase(name string, storageType StorageType) error
                                                              	ListDatabases() (map[string]string, error)
                                                              	Close() error

                                                                DBAdmin is a minimal interface for database management API implementation

                                                                type DBConnection

                                                                type DBConnection interface {
                                                                	Auth(user, pass string) (DBAdmin, error)
                                                                	Open(name string, dbType DatabaseType, user, pass string) (DBSession, error)
                                                                	Close() error

                                                                  DBConnection is a minimal interface for OrientDB server API implementation

                                                                  type DBSession

                                                                  type DBSession interface {
                                                                  	Close() error
                                                                  	Size() (int64, error)
                                                                  	ReloadSchema() error
                                                                  	GetCurDB() *ODatabase
                                                                  	AddClusterWithID(clusterName string, id int16) (clusterID int16, err error)
                                                                  	DropCluster(clusterName string) (err error)
                                                                  	GetClusterDataRange(clusterName string) (begin, end int64, err error)
                                                                  	ClustersCount(withDeleted bool, clusterNames ...string) (int64, error)
                                                                  	CreateRecord(rec ORecord) (err error)
                                                                  	DeleteRecordByRID(rid RID, recVersion int) error
                                                                  	GetRecordByRID(rid RID, fetchPlan FetchPlan, ignoreCache bool) (rec ORecord, err error)
                                                                  	UpdateRecord(rec ORecord) error
                                                                  	CountRecords() (int64, error)
                                                                  	Command(cmd CustomSerializable) (result interface{}, err error)

                                                                    DBSession is a minimal interface for database API implementation

                                                                    type Database

                                                                    type Database struct {
                                                                    	// contains filtered or unexported fields

                                                                      Database wraps a database session. It is safe for concurrent use.

                                                                      func (*Database) AddCluster

                                                                      func (db *Database) AddCluster(name string) (int16, error)

                                                                        AddCluster creates new cluster with given name and returns its ID.

                                                                        func (*Database) AddClusterWithID

                                                                        func (db *Database) AddClusterWithID(name string, clusterID int16) (int16, error)

                                                                          AddClusterWithID creates new cluster with given cluster position and name

                                                                          func (*Database) CallScriptFunc

                                                                          func (db *Database) CallScriptFunc(name string, params ...interface{}) Results

                                                                            CallScriptFunc is a helper for calling server-side functions (especially JS). Ideally should be a shorthand for

                                                                            db.Command(NewFunctionCommand(name, params...))

                                                                            but it uses some workarounds to allow to return JS objects from that functions.

                                                                            func (*Database) Close

                                                                            func (db *Database) Close() error

                                                                              Close closes database session.

                                                                              func (*Database) ClustersCount

                                                                              func (db *Database) ClustersCount(withDeleted bool, clusterNames ...string) (int64, error)

                                                                                ClustersCount returns total count of records in given clusters

                                                                                func (*Database) Command

                                                                                func (db *Database) Command(cmd OCommandRequestText) Results

                                                                                  Command executes command against current database. Example:

                                                                                  result := db.Command(NewSQLQuery("SELECT FROM V WHERE id = ?", id).Limit(10))

                                                                                  func (*Database) CountRecords

                                                                                  func (db *Database) CountRecords() (int64, error)

                                                                                    CountRecords returns total records count.

                                                                                    func (*Database) CreateRecord

                                                                                    func (db *Database) CreateRecord(rec ORecord) error

                                                                                      CreateRecord saves a record to the database. Record RID and version will be changed.

                                                                                      func (*Database) CreateScriptFunc

                                                                                      func (db *Database) CreateScriptFunc(fnc Function) error

                                                                                        CreateScriptFunc is a helper for saving server-side functions to database.

                                                                                        func (*Database) DeleteRecordByRID

                                                                                        func (db *Database) DeleteRecordByRID(rid RID, recVersion int) error

                                                                                          DeleteRecordByRID removes a record from database

                                                                                          func (*Database) DeleteScriptFunc

                                                                                          func (db *Database) DeleteScriptFunc(name string) error

                                                                                            DeleteScriptFunc deletes server-side function with a given name from current database.

                                                                                            func (*Database) DropCluster

                                                                                            func (db *Database) DropCluster(name string) error

                                                                                              DropCluster deletes cluster from database

                                                                                              func (*Database) GetClusterDataRange

                                                                                              func (db *Database) GetClusterDataRange(clusterName string) (begin, end int64, err error)

                                                                                                GetClusterDataRange returns the begin and end positions of data in the requested cluster.

                                                                                                func (*Database) GetCurDB

                                                                                                func (db *Database) GetCurDB() *ODatabase

                                                                                                  GetCurDB returns database metadata

                                                                                                  func (*Database) GetRecordByRID

                                                                                                  func (db *Database) GetRecordByRID(rid RID, fetchPlan FetchPlan, ignoreCache bool) (ORecord, error)

                                                                                                    GetRecordByRID returns a record using specified fetch plan. If ignoreCache is set to true implementations will not use local records cache and will fetch record from database.

                                                                                                    func (*Database) InitScriptFunc

                                                                                                    func (db *Database) InitScriptFunc(fncs ...Function) (err error)

                                                                                                      InitScriptFunc is a helper for updating all server-side functions to specified state.

                                                                                                      func (*Database) ReloadSchema

                                                                                                      func (db *Database) ReloadSchema() error

                                                                                                        ReloadSchema reloads documents schema from database.

                                                                                                        func (*Database) Size

                                                                                                        func (db *Database) Size() (int64, error)

                                                                                                          Size return the size of current database (in bytes).

                                                                                                          func (*Database) UpdateRecord

                                                                                                          func (db *Database) UpdateRecord(rec ORecord) error

                                                                                                            UpdateRecord updates given record in a database. Record version will be changed after the call.

                                                                                                            func (*Database) UpdateScriptFunc

                                                                                                            func (db *Database) UpdateScriptFunc(name string, script string) error

                                                                                                              UpdateScriptFunc updates code of server-side function

                                                                                                              type DatabaseType

                                                                                                              type DatabaseType string

                                                                                                                DatabaseType defines database access type (Document or Graph)

                                                                                                                const (
                                                                                                                	DocumentDB DatabaseType = "document"
                                                                                                                	GraphDB    DatabaseType = "graph"

                                                                                                                  List of database access types

                                                                                                                  type Decimal

                                                                                                                  type Decimal struct {
                                                                                                                  	Scale int
                                                                                                                  	Value *big.Int

                                                                                                                  type Deserializable

                                                                                                                  type Deserializable interface {
                                                                                                                  	FromStream(r io.Reader) error

                                                                                                                    Deserializable is an interface for objects that can be deserialized from stream

                                                                                                                    type DocEntry

                                                                                                                    type DocEntry struct {
                                                                                                                    	Name  string
                                                                                                                    	Type  OType
                                                                                                                    	Value interface{}

                                                                                                                      DocEntry is a generic data holder that goes in Documents.

                                                                                                                      func (*DocEntry) String

                                                                                                                      func (fld *DocEntry) String() string

                                                                                                                      type Document

                                                                                                                      type Document struct {
                                                                                                                      	// contains filtered or unexported fields

                                                                                                                      func NewDocument

                                                                                                                      func NewDocument(className string) *Document

                                                                                                                        NewDocument should be called to create new Document objects, since some internal data structures need to be initialized before the Document is ready to use.

                                                                                                                        func NewDocumentFromRID

                                                                                                                        func NewDocumentFromRID(rid RID) *Document

                                                                                                                          NewDocumentFromRID creates new empty document with given RID.

                                                                                                                          func NewEmptyDocument

                                                                                                                          func NewEmptyDocument() *Document

                                                                                                                            NewEmptyDocument creates new empty document.

                                                                                                                            func (*Document) AddField

                                                                                                                            func (doc *Document) AddField(name string, field *DocEntry) *Document

                                                                                                                              AddField adds a fully created field directly rather than by some of its attributes, as the other "Field" methods do. The same *Document is returned to allow call chaining.

                                                                                                                              func (*Document) ClassName

                                                                                                                              func (doc *Document) ClassName() string

                                                                                                                              func (*Document) Content

                                                                                                                              func (doc *Document) Content() ([]byte, error)

                                                                                                                              func (*Document) FieldNames

                                                                                                                              func (doc *Document) FieldNames() []string

                                                                                                                                FieldNames returns the names of all the fields currently in this Document in "entry order". These fields may not have already been committed to the database.

                                                                                                                                func (*Document) Fields

                                                                                                                                func (doc *Document) Fields() map[string]*DocEntry

                                                                                                                                func (*Document) FieldsArray

                                                                                                                                func (doc *Document) FieldsArray() []*DocEntry

                                                                                                                                  FieldsArray return the OField objects in the Document in "entry order". There is some overhead to getting them in entry order, so if you don't care about that order, just access the Fields field of the Document struct directly.

                                                                                                                                  func (*Document) Fill

                                                                                                                                  func (doc *Document) Fill(rid RID, version int, content []byte) error

                                                                                                                                  func (*Document) FillClassNameIfNeeded

                                                                                                                                  func (doc *Document) FillClassNameIfNeeded(name string)

                                                                                                                                  func (*Document) From

                                                                                                                                  func (doc *Document) From(o interface{}) error

                                                                                                                                    From sets Document fields to values provided in argument (which can be a map or a struct).

                                                                                                                                    From uses TagName field tag to determine field name and conversion parameters. For now it supports only one special tag parameter: ",squash" which can be used to inline fields into parent struct.

                                                                                                                                    func (*Document) GetField

                                                                                                                                    func (doc *Document) GetField(fname string) *DocEntry

                                                                                                                                      GetFieldByName looks up the OField in this document with the specified field. If no field is found with that name, nil is returned.

                                                                                                                                      func (*Document) GetIdentity

                                                                                                                                      func (doc *Document) GetIdentity() RID

                                                                                                                                      func (*Document) GetRecord

                                                                                                                                      func (doc *Document) GetRecord() interface{}

                                                                                                                                      func (*Document) RawContainsField

                                                                                                                                      func (doc *Document) RawContainsField(name string) bool

                                                                                                                                      func (*Document) RawSetField

                                                                                                                                      func (doc *Document) RawSetField(name string, val interface{}, fieldType OType)

                                                                                                                                      func (*Document) RecordType

                                                                                                                                      func (doc *Document) RecordType() RecordType

                                                                                                                                      func (*Document) SetClassNameIfExists

                                                                                                                                      func (doc *Document) SetClassNameIfExists(name string)

                                                                                                                                      func (*Document) SetDirty

                                                                                                                                      func (doc *Document) SetDirty(b bool)

                                                                                                                                      func (*Document) SetField

                                                                                                                                      func (doc *Document) SetField(name string, val interface{}) *Document

                                                                                                                                        SetField is used to add a new field to a document. This will usually be done just before calling Save and sending it to the database. The field type will be inferred via type switch analysis on `val`. Use FieldWithType to specify the type directly. The same *Document is returned to allow call chaining.

                                                                                                                                        func (*Document) SetFieldWithType

                                                                                                                                        func (doc *Document) SetFieldWithType(name string, val interface{}, fieldType OType) *Document

                                                                                                                                          FieldWithType is used to add a new field to a document. This will usually be done just before calling Save and sending it to the database. The `fieldType` must correspond one of the OrientDB type in the schema pkg constants. It will follow the same list as: The same *Document is returned to allow call chaining.

                                                                                                                                          func (*Document) SetSerializer

                                                                                                                                          func (doc *Document) SetSerializer(ser RecordSerializer)

                                                                                                                                            SetSerializer sets RecordSerializer for encoding/decoding a Document

                                                                                                                                            func (*Document) String

                                                                                                                                            func (doc *Document) String() string

                                                                                                                                            func (*Document) ToDocument

                                                                                                                                            func (doc *Document) ToDocument() (*Document, error)

                                                                                                                                              ToDocument implement DocumentSerializable interface. In this case, Document just returns itself.

                                                                                                                                              func (*Document) ToMap

                                                                                                                                              func (doc *Document) ToMap() (map[string]interface{}, error)

                                                                                                                                              func (*Document) ToStruct

                                                                                                                                              func (doc *Document) ToStruct(o interface{}) error

                                                                                                                                                ToStruct fills provided struct with content of a Document. Argument must be a pointer to structure.

                                                                                                                                                type DocumentDeserializable

                                                                                                                                                type DocumentDeserializable interface {
                                                                                                                                                	FromDocument(*Document) error

                                                                                                                                                  DocumentDeserializable is an interface for objects that can be filled from Document

                                                                                                                                                  type DocumentSerializable

                                                                                                                                                  type DocumentSerializable interface {
                                                                                                                                                  	ToDocument() (*Document, error)

                                                                                                                                                    DocumentSerializable is an interface for objects that can be converted to Document

                                                                                                                                                    type ErrConcurrentModification

                                                                                                                                                    type ErrConcurrentModification struct {

                                                                                                                                                    func (ErrConcurrentModification) Error

                                                                                                                                                    type ErrInvalidConn

                                                                                                                                                    type ErrInvalidConn struct {
                                                                                                                                                    	Msg string

                                                                                                                                                      ErrInvalidConn is returned than DB functions are called without active DB connection

                                                                                                                                                      func (ErrInvalidConn) Error

                                                                                                                                                      func (e ErrInvalidConn) Error() string

                                                                                                                                                      type ErrMultipleRecords

                                                                                                                                                      type ErrMultipleRecords struct {
                                                                                                                                                      	N   int
                                                                                                                                                      	Err error

                                                                                                                                                        ErrMultipleRecords is returned when trying to deserialize a result set with multiple records into a single value.

                                                                                                                                                        func (ErrMultipleRecords) Error

                                                                                                                                                        func (e ErrMultipleRecords) Error() string

                                                                                                                                                        type ErrTypeSerialization

                                                                                                                                                        type ErrTypeSerialization struct {
                                                                                                                                                        	Val        interface{}
                                                                                                                                                        	Serializer interface{}

                                                                                                                                                          ErrTypeSerialization represent serialization/deserialization error

                                                                                                                                                          func (ErrTypeSerialization) Error

                                                                                                                                                          func (e ErrTypeSerialization) Error() string

                                                                                                                                                          type ErrUnsupportedConversion

                                                                                                                                                          type ErrUnsupportedConversion struct {
                                                                                                                                                          	From reflect.Value
                                                                                                                                                          	To   reflect.Value

                                                                                                                                                          func (ErrUnsupportedConversion) Error

                                                                                                                                                          func (e ErrUnsupportedConversion) Error() string

                                                                                                                                                          type Exception

                                                                                                                                                          type Exception interface {
                                                                                                                                                          	// Returns Java exception class
                                                                                                                                                          	ExcClass() string
                                                                                                                                                          	// Returns exception message
                                                                                                                                                          	ExcMessage() string

                                                                                                                                                            Exception is an interface for Java-based Exceptions.

                                                                                                                                                            type FetchPlan

                                                                                                                                                            type FetchPlan string

                                                                                                                                                              FetchPlan is an additional parameter to queries, that instructs DB how to handle linked documents.

                                                                                                                                                              The format is:


                                                                                                                                                              Field is the name of the field to specify the depth-level. Wildcard '*' means any fields.

                                                                                                                                                              Depth is the depth level to fetch. -1 means infinite, 0 means no fetch at all and 1-N the depth level value.

                                                                                                                                                              WARN: currently fetch plan have no effect on returned results, as records cache is not implemented yet.

                                                                                                                                                              type Function

                                                                                                                                                              type Function struct {
                                                                                                                                                              	Name   string
                                                                                                                                                              	Lang   ScriptLang
                                                                                                                                                              	Params []string
                                                                                                                                                              	Idemp  bool // is idempotent
                                                                                                                                                              	Code   string

                                                                                                                                                                Function is a server-side function description

                                                                                                                                                                type FunctionCommand

                                                                                                                                                                type FunctionCommand struct {
                                                                                                                                                                	// contains filtered or unexported fields

                                                                                                                                                                  FunctionCommand is a command to call server-side function.

                                                                                                                                                                  OCommandFunction in Java world.

                                                                                                                                                                  func NewFunctionCommand

                                                                                                                                                                  func NewFunctionCommand(name string, params ...interface{}) FunctionCommand

                                                                                                                                                                    NewFunctionCommand creates a new call request to server-side function with given name and arguments.

                                                                                                                                                                    func (FunctionCommand) GetClassName

                                                                                                                                                                    func (rq FunctionCommand) GetClassName() string

                                                                                                                                                                      GetClassName returns Java class name

                                                                                                                                                                      func (FunctionCommand) GetText

                                                                                                                                                                      func (rq FunctionCommand) GetText() string

                                                                                                                                                                      func (FunctionCommand) ToStream

                                                                                                                                                                      func (rq FunctionCommand) ToStream(w io.Writer) error

                                                                                                                                                                      type GlobalPropertyFunc

                                                                                                                                                                      type GlobalPropertyFunc func(id int) (OGlobalProperty, bool)

                                                                                                                                                                        GlobalPropertyFunc is a function for getting global properties by id

                                                                                                                                                                        type MapSerializable

                                                                                                                                                                        type MapSerializable interface {
                                                                                                                                                                        	ToMap() (map[string]interface{}, error)

                                                                                                                                                                          MapSerializable is an interface for objects that can be converted to map[string]interface{}

                                                                                                                                                                          type OClass

                                                                                                                                                                          type OClass struct {
                                                                                                                                                                          	Name             string
                                                                                                                                                                          	ShortName        string
                                                                                                                                                                          	Properties       map[string]*OProperty
                                                                                                                                                                          	DefaultClusterId int32
                                                                                                                                                                          	ClusterIds       []int32
                                                                                                                                                                          	SuperClass       string
                                                                                                                                                                          	OverSize         float32
                                                                                                                                                                          	StrictMode       bool
                                                                                                                                                                          	AbstractClass    bool
                                                                                                                                                                          	ClusterSelection string // OClusterSelectionStrategy in Java code - needed?
                                                                                                                                                                          	CustomFields     map[string]string

                                                                                                                                                                          func NewOClassFromDocument

                                                                                                                                                                          func NewOClassFromDocument(doc *Document) *OClass

                                                                                                                                                                            Should be passed an Document that comes from a load schema request to the database.

                                                                                                                                                                            type OCommandRequestText

                                                                                                                                                                            type OCommandRequestText interface {
                                                                                                                                                                            	GetText() string

                                                                                                                                                                              OCommandRequestText is an interface for text-based database commands, which can be executed using database.Command function.

                                                                                                                                                                              type ODatabase

                                                                                                                                                                              type ODatabase struct {
                                                                                                                                                                              	Name    string
                                                                                                                                                                              	Type    DatabaseType
                                                                                                                                                                              	Classes map[string]*OClass

                                                                                                                                                                                ODatabase stores database metadata

                                                                                                                                                                                type OGlobalProperty

                                                                                                                                                                                type OGlobalProperty struct {
                                                                                                                                                                                	Id   int32 // TODO: change to int?
                                                                                                                                                                                	Name string
                                                                                                                                                                                	Type OType

                                                                                                                                                                                  OGlobalProperty is used by OrientDB to efficiently store "property" (field) types and names (but not values) across all clusters in a database These are stored in record #0:1 of a database and loaded when the DBClient starts up. (TODO: it will also need to be updated when new fields are added at runtime)

                                                                                                                                                                                  func NewGlobalPropertyFromDocument

                                                                                                                                                                                  func NewGlobalPropertyFromDocument(doc *Document) OGlobalProperty

                                                                                                                                                                                    based on how the Java client does it ; TODO: document usage

                                                                                                                                                                                    type OIdentifiable

                                                                                                                                                                                    type OIdentifiable interface {
                                                                                                                                                                                    	GetIdentity() RID
                                                                                                                                                                                    	GetRecord() interface{}

                                                                                                                                                                                    type OIdentifiableCollection

                                                                                                                                                                                    type OIdentifiableCollection interface {
                                                                                                                                                                                    	Len() int
                                                                                                                                                                                    	OIdentifiableIterator() <-chan OIdentifiable

                                                                                                                                                                                    type OProperty

                                                                                                                                                                                    type OProperty struct {
                                                                                                                                                                                    	Id           int32
                                                                                                                                                                                    	Name         string
                                                                                                                                                                                    	Fullname     string // Classname.propertyName
                                                                                                                                                                                    	Type         byte   // corresponds to one of the type constants above
                                                                                                                                                                                    	NotNull      bool
                                                                                                                                                                                    	Collate      string // is OCollate in Java client
                                                                                                                                                                                    	Mandatory    bool
                                                                                                                                                                                    	Min          string
                                                                                                                                                                                    	Max          string
                                                                                                                                                                                    	Regexp       string
                                                                                                                                                                                    	CustomFields map[string]string
                                                                                                                                                                                    	Readonly     bool

                                                                                                                                                                                      OProperty roughly corresponds to OProperty in the Java client. It represents a property of a class in OrientDB. A property represents the metadata of a field. A field (OField) is the actual data of a field in an Document.

                                                                                                                                                                                      func NewOPropertyFromDocument

                                                                                                                                                                                      func NewOPropertyFromDocument(doc *Document) *OProperty

                                                                                                                                                                                        NewOPropertyFromDocument creates a new OProperty from an Document that was created after a load schema call to the OrientDB server.

                                                                                                                                                                                        type ORecord

                                                                                                                                                                                        type ORecord interface {
                                                                                                                                                                                        	Fill(rid RID, version int, content []byte) error // TODO: put to separate interface?
                                                                                                                                                                                        	Content() ([]byte, error)
                                                                                                                                                                                        	Version() int
                                                                                                                                                                                        	SetVersion(v int)
                                                                                                                                                                                        	SetRID(rid RID)
                                                                                                                                                                                        	RecordType() RecordType

                                                                                                                                                                                        func NewRecordOfType

                                                                                                                                                                                        func NewRecordOfType(tp RecordType) ORecord

                                                                                                                                                                                          NewRecordOfType creates a new record of specified type

                                                                                                                                                                                          type OServerException

                                                                                                                                                                                          type OServerException struct {
                                                                                                                                                                                          	Exceptions []Exception

                                                                                                                                                                                            OServerException encapsulates Java-based Exceptions from the OrientDB server. OrientDB can return multiple exceptions for a single query/command, so they are all encapsulated in one OServerException object.

                                                                                                                                                                                            func (OServerException) Error

                                                                                                                                                                                            func (e OServerException) Error() string

                                                                                                                                                                                            type OType

                                                                                                                                                                                            type OType byte

                                                                                                                                                                                              OType is an enum for the various data types supported by OrientDB.

                                                                                                                                                                                              const (
                                                                                                                                                                                              	BOOLEAN      OType = 0
                                                                                                                                                                                              	INTEGER      OType = 1
                                                                                                                                                                                              	SHORT        OType = 2
                                                                                                                                                                                              	LONG         OType = 3
                                                                                                                                                                                              	FLOAT        OType = 4
                                                                                                                                                                                              	DOUBLE       OType = 5
                                                                                                                                                                                              	DATETIME     OType = 6
                                                                                                                                                                                              	STRING       OType = 7
                                                                                                                                                                                              	BINARY       OType = 8 // means []byte
                                                                                                                                                                                              	EMBEDDED     OType = 9
                                                                                                                                                                                              	EMBEDDEDLIST OType = 10
                                                                                                                                                                                              	EMBEDDEDSET  OType = 11
                                                                                                                                                                                              	EMBEDDEDMAP  OType = 12
                                                                                                                                                                                              	LINK         OType = 13
                                                                                                                                                                                              	LINKLIST     OType = 14
                                                                                                                                                                                              	LINKSET      OType = 15
                                                                                                                                                                                              	LINKMAP      OType = 16
                                                                                                                                                                                              	BYTE         OType = 17
                                                                                                                                                                                              	TRANSIENT    OType = 18
                                                                                                                                                                                              	DATE         OType = 19
                                                                                                                                                                                              	CUSTOM       OType = 20
                                                                                                                                                                                              	DECIMAL      OType = 21
                                                                                                                                                                                              	LINKBAG      OType = 22
                                                                                                                                                                                              	ANY          OType = 23
                                                                                                                                                                                              	UNKNOWN      OType = 255 // driver addition

                                                                                                                                                                                                in alignment with:

                                                                                                                                                                                                func OTypeForValue

                                                                                                                                                                                                func OTypeForValue(val interface{}) (ftype OType)

                                                                                                                                                                                                func OTypeFromString

                                                                                                                                                                                                func OTypeFromString(typ string) OType

                                                                                                                                                                                                func (OType) ReflectKind

                                                                                                                                                                                                func (t OType) ReflectKind() reflect.Kind

                                                                                                                                                                                                func (OType) ReflectType

                                                                                                                                                                                                func (t OType) ReflectType() reflect.Type

                                                                                                                                                                                                func (OType) String

                                                                                                                                                                                                func (t OType) String() string

                                                                                                                                                                                                type RID

                                                                                                                                                                                                type RID struct {
                                                                                                                                                                                                	ClusterID  int16
                                                                                                                                                                                                	ClusterPos int64

                                                                                                                                                                                                  RID encapsulates the two aspects of an OrientDB RecordID - ClusterID:ClusterPos. ORecordId in Java world.

                                                                                                                                                                                                  func MustParseRID

                                                                                                                                                                                                  func MustParseRID(s string) RID

                                                                                                                                                                                                    MustParseRID is a version of ParseRID which panics on errors

                                                                                                                                                                                                    func NewEmptyRID

                                                                                                                                                                                                    func NewEmptyRID() RID

                                                                                                                                                                                                      NewEmptyRID returns an RID with the default "invalid" settings. Invalid settings indicate that the Document has not yet been saved to the DB (which assigns it a valid RID) or it indicates that it is not a true Document with a Class (e.g., it is a result of a Property query)

                                                                                                                                                                                                      func NewRID

                                                                                                                                                                                                      func NewRID(cid int16, pos int64) RID

                                                                                                                                                                                                        NewRID creates a RID with given ClusterId and ClusterPos. It will check value for validity.

                                                                                                                                                                                                        func NewRIDInCluster

                                                                                                                                                                                                        func NewRIDInCluster(cid int16) RID

                                                                                                                                                                                                          NewRIDInCluster creates an empty RID inside specified cluster

                                                                                                                                                                                                          func ParseRID

                                                                                                                                                                                                          func ParseRID(s string) (RID, error)

                                                                                                                                                                                                            ParseRID converts a string of form #N:M or N:M to a RID.

                                                                                                                                                                                                            func (*RID) FromStream

                                                                                                                                                                                                            func (rid *RID) FromStream(r io.Reader) error

                                                                                                                                                                                                            func (RID) GetIdentity

                                                                                                                                                                                                            func (r RID) GetIdentity() RID

                                                                                                                                                                                                              GetIdentity implements OIdentifiable interface on RID

                                                                                                                                                                                                              func (RID) GetRecord

                                                                                                                                                                                                              func (r RID) GetRecord() interface{}

                                                                                                                                                                                                              func (RID) IsNew

                                                                                                                                                                                                              func (rid RID) IsNew() bool

                                                                                                                                                                                                              func (RID) IsPersistent

                                                                                                                                                                                                              func (rid RID) IsPersistent() bool

                                                                                                                                                                                                              func (RID) IsTemporary

                                                                                                                                                                                                              func (rid RID) IsTemporary() bool

                                                                                                                                                                                                              func (RID) IsValid

                                                                                                                                                                                                              func (r RID) IsValid() bool

                                                                                                                                                                                                              func (RID) Next

                                                                                                                                                                                                              func (rid RID) Next() string

                                                                                                                                                                                                                Next is a shortcut for rid.NextRID().String()

                                                                                                                                                                                                                func (RID) NextRID

                                                                                                                                                                                                                func (rid RID) NextRID() RID

                                                                                                                                                                                                                  NextRID returns next RID in current cluster

                                                                                                                                                                                                                  func (RID) String

                                                                                                                                                                                                                  func (rid RID) String() string

                                                                                                                                                                                                                    String converts RID to #N:M string format

                                                                                                                                                                                                                    func (RID) ToStream

                                                                                                                                                                                                                    func (rid RID) ToStream(w io.Writer) error

                                                                                                                                                                                                                    type RecordFactory

                                                                                                                                                                                                                    type RecordFactory func() ORecord

                                                                                                                                                                                                                      RecordFactory is a function to create records of certain type

                                                                                                                                                                                                                      func GetRecordFactory

                                                                                                                                                                                                                      func GetRecordFactory(tp RecordType) RecordFactory

                                                                                                                                                                                                                        GetRecordFactory returns RecordFactory for a given type

                                                                                                                                                                                                                        type RecordSerializer

                                                                                                                                                                                                                        type RecordSerializer interface {
                                                                                                                                                                                                                        	// String, in case of RecordSerializer must return it's class name, as it will be sent to server
                                                                                                                                                                                                                        	String() string
                                                                                                                                                                                                                        	ToStream(w io.Writer, rec ORecord) error
                                                                                                                                                                                                                        	FromStream(data []byte) (ORecord, error)
                                                                                                                                                                                                                        	SetGlobalPropertyFunc(fnc GlobalPropertyFunc)

                                                                                                                                                                                                                          RecordSerializer is an interface for serializing records to byte streams

                                                                                                                                                                                                                          func GetDefaultRecordSerializer

                                                                                                                                                                                                                          func GetDefaultRecordSerializer() RecordSerializer

                                                                                                                                                                                                                            GetDefaultRecordSerializer returns default record serializer

                                                                                                                                                                                                                            func GetRecordFormat

                                                                                                                                                                                                                            func GetRecordFormat(name string) RecordSerializer

                                                                                                                                                                                                                              GetRecordFormat returns record serializer by class name

                                                                                                                                                                                                                              type RecordType

                                                                                                                                                                                                                              type RecordType byte

                                                                                                                                                                                                                                RecordType defines a registered record type

                                                                                                                                                                                                                                const (
                                                                                                                                                                                                                                	RecordTypeDocument RecordType = 'd'
                                                                                                                                                                                                                                	RecordTypeBytes    RecordType = 'b'
                                                                                                                                                                                                                                	RecordTypeFlat     RecordType = 'f'

                                                                                                                                                                                                                                  List of standard record types

                                                                                                                                                                                                                                  type Results

                                                                                                                                                                                                                                  type Results interface {
                                                                                                                                                                                                                                  	Err() error
                                                                                                                                                                                                                                  	Close() error
                                                                                                                                                                                                                                  	Next(result interface{}) bool
                                                                                                                                                                                                                                  	All(result interface{}) error

                                                                                                                                                                                                                                    Results is an interface for database command results. Must be closed.

                                                                                                                                                                                                                                    Individual results can be iterated in a next way:

                                                                                                                                                                                                                                    results := db.Command(cmd)
                                                                                                                                                                                                                                    if err := results.Err(); err != nil {
                                                                                                                                                                                                                                    	// handle command errors; can be omitted and checked later with Err or Close
                                                                                                                                                                                                                                    var one SomeStruct
                                                                                                                                                                                                                                    for results.Next(&one) {
                                                                                                                                                                                                                                    	// process result, if any
                                                                                                                                                                                                                                    if err := results.Close(); err != nil {
                                                                                                                                                                                                                                    	// handle command and/or type conversion errors

                                                                                                                                                                                                                                    Or just retrieved all at once:

                                                                                                                                                                                                                                    var arr []SomeStruct
                                                                                                                                                                                                                                    if err := results.All(&arr); err != nil {
                                                                                                                                                                                                                                    	// handle command and/or type conversion errors

                                                                                                                                                                                                                                    Some commands may return just one int/bool value:

                                                                                                                                                                                                                                    var affected int

                                                                                                                                                                                                                                    Also results can be handled manually:

                                                                                                                                                                                                                                    var out interface{}
                                                                                                                                                                                                                                    switch out.(type) {
                                                                                                                                                                                                                                    case []OIdentifiable:
                                                                                                                                                                                                                                    	// ...
                                                                                                                                                                                                                                    case *DocumentRecord:
                                                                                                                                                                                                                                    	// ...

                                                                                                                                                                                                                                    type RidBag

                                                                                                                                                                                                                                    type RidBag struct {
                                                                                                                                                                                                                                    	// contains filtered or unexported fields

                                                                                                                                                                                                                                      RidBag can have a tree-based or an embedded representation.

                                                                                                                                                                                                                                      Embedded stores its content directly to the document that owns it. It is used when only small numbers of links are stored in the bag.

                                                                                                                                                                                                                                      The tree-based implementation stores its content in a separate data structure called on OSBTreeBonsai on the server. It fits great for cases when you have a large number of links. This is used to efficiently manage relationships (particularly in graph databases).

                                                                                                                                                                                                                                      The RidBag struct corresponds to ORidBag in Java client codebase.

                                                                                                                                                                                                                                      func NewRidBag

                                                                                                                                                                                                                                      func NewRidBag() *RidBag

                                                                                                                                                                                                                                      func (*RidBag) FromStream

                                                                                                                                                                                                                                      func (bag *RidBag) FromStream(r io.Reader) error

                                                                                                                                                                                                                                      func (*RidBag) IsRemote

                                                                                                                                                                                                                                      func (bag *RidBag) IsRemote() bool

                                                                                                                                                                                                                                      func (*RidBag) SetOwner

                                                                                                                                                                                                                                      func (bag *RidBag) SetOwner(doc *Document)

                                                                                                                                                                                                                                      func (*RidBag) ToStream

                                                                                                                                                                                                                                      func (bag *RidBag) ToStream(w io.Writer) error

                                                                                                                                                                                                                                      type SQLCommand

                                                                                                                                                                                                                                      type SQLCommand struct {
                                                                                                                                                                                                                                      	// contains filtered or unexported fields

                                                                                                                                                                                                                                        SQLCommand is a non-SELECT sql command (EXEC/INSERT/DELETE).

                                                                                                                                                                                                                                        OCommandSQL in Java world.

                                                                                                                                                                                                                                        func NewSQLCommand

                                                                                                                                                                                                                                        func NewSQLCommand(sql string, params ...interface{}) SQLCommand

                                                                                                                                                                                                                                          NewSQLCommand creates a new SQL command request with given params.


                                                                                                                                                                                                                                          NewSQLCommand("INSERT INTO People (id, name) VALUES (?, ?)", id, name)

                                                                                                                                                                                                                                          func (SQLCommand) GetClassName

                                                                                                                                                                                                                                          func (rq SQLCommand) GetClassName() string

                                                                                                                                                                                                                                            GetClassName returns Java class name

                                                                                                                                                                                                                                            func (SQLCommand) GetText

                                                                                                                                                                                                                                            func (rq SQLCommand) GetText() string

                                                                                                                                                                                                                                            func (SQLCommand) ToStream

                                                                                                                                                                                                                                            func (rq SQLCommand) ToStream(w io.Writer) error

                                                                                                                                                                                                                                            type SQLQuery

                                                                                                                                                                                                                                            type SQLQuery struct {
                                                                                                                                                                                                                                            	// contains filtered or unexported fields

                                                                                                                                                                                                                                              SQLQuery is a SELECT-like SQL command.

                                                                                                                                                                                                                                              OSQLQuery in Java world.

                                                                                                                                                                                                                                              func NewSQLQuery

                                                                                                                                                                                                                                              func NewSQLQuery(sql string, params ...interface{}) SQLQuery

                                                                                                                                                                                                                                                NewSQLQuery creates a new SQL query with given params.


                                                                                                                                                                                                                                                NewSQLQuery("SELECT FROM V WHERE id = ?", id)

                                                                                                                                                                                                                                                func (SQLQuery) FetchPlan

                                                                                                                                                                                                                                                func (rq SQLQuery) FetchPlan(plan FetchPlan) SQLQuery

                                                                                                                                                                                                                                                  FetchPlan sets a query fetch plan

                                                                                                                                                                                                                                                  func (SQLQuery) GetClassName

                                                                                                                                                                                                                                                  func (rq SQLQuery) GetClassName() string

                                                                                                                                                                                                                                                    GetClassName returns Java class name

                                                                                                                                                                                                                                                    func (SQLQuery) GetText

                                                                                                                                                                                                                                                    func (rq SQLQuery) GetText() string

                                                                                                                                                                                                                                                      GetText returns query text

                                                                                                                                                                                                                                                      func (SQLQuery) Limit

                                                                                                                                                                                                                                                      func (rq SQLQuery) Limit(n int) SQLQuery

                                                                                                                                                                                                                                                        Limit sets a query record limit

                                                                                                                                                                                                                                                        func (SQLQuery) ToStream

                                                                                                                                                                                                                                                        func (rq SQLQuery) ToStream(w io.Writer) error

                                                                                                                                                                                                                                                          ToStream serializes command to specified Writer

                                                                                                                                                                                                                                                          type ScriptCommand

                                                                                                                                                                                                                                                          type ScriptCommand struct {
                                                                                                                                                                                                                                                          	// contains filtered or unexported fields

                                                                                                                                                                                                                                                            ScriptCommand is a way to execute batch-like commands.

                                                                                                                                                                                                                                                            OCommandScript in Java world.

                                                                                                                                                                                                                                                            func NewScriptCommand

                                                                                                                                                                                                                                                            func NewScriptCommand(lang ScriptLang, body string, params ...interface{}) ScriptCommand

                                                                                                                                                                                                                                                              NewScriptCommand creates a new script request written in a given language (SQL/JS/Groovy/...), with specified body code and params.


                                                                                                                                                                                                                                                              NewScriptCommand(LangJS, `var out = db.command("SELECT FROM V"); out`)

                                                                                                                                                                                                                                                              func (ScriptCommand) GetClassName

                                                                                                                                                                                                                                                              func (rq ScriptCommand) GetClassName() string

                                                                                                                                                                                                                                                                GetClassName returns Java class name

                                                                                                                                                                                                                                                                func (ScriptCommand) GetText

                                                                                                                                                                                                                                                                func (rq ScriptCommand) GetText() string

                                                                                                                                                                                                                                                                func (ScriptCommand) ToStream

                                                                                                                                                                                                                                                                func (rq ScriptCommand) ToStream(w io.Writer) error

                                                                                                                                                                                                                                                                  ToStream serializes command to specified Writer

                                                                                                                                                                                                                                                                  type ScriptLang

                                                                                                                                                                                                                                                                  type ScriptLang string

                                                                                                                                                                                                                                                                    ScriptLang is a type for supported server-side script languages

                                                                                                                                                                                                                                                                    type Serializable

                                                                                                                                                                                                                                                                    type Serializable interface {
                                                                                                                                                                                                                                                                    	ToStream(w io.Writer) error

                                                                                                                                                                                                                                                                      Serializable is an interface for objects that can be serialized to stream

                                                                                                                                                                                                                                                                      type StorageType

                                                                                                                                                                                                                                                                      type StorageType string

                                                                                                                                                                                                                                                                        StorageType defines supported database storage types

                                                                                                                                                                                                                                                                        const (
                                                                                                                                                                                                                                                                        	// Persistent type represents on-disk database
                                                                                                                                                                                                                                                                        	Persistent StorageType = "plocal"
                                                                                                                                                                                                                                                                        	// Volatile type represents in-memory database
                                                                                                                                                                                                                                                                        	Volatile StorageType = "memory"

                                                                                                                                                                                                                                                                        type StringRecordFormatAbs

                                                                                                                                                                                                                                                                        type StringRecordFormatAbs struct{}

                                                                                                                                                                                                                                                                        func (StringRecordFormatAbs) FieldTypeFromStream

                                                                                                                                                                                                                                                                        func (f StringRecordFormatAbs) FieldTypeFromStream(tp OType, s string) interface{}

                                                                                                                                                                                                                                                                        func (StringRecordFormatAbs) GetType

                                                                                                                                                                                                                                                                        func (StringRecordFormatAbs) GetType(s string) OType

                                                                                                                                                                                                                                                                        type UnknownException

                                                                                                                                                                                                                                                                        type UnknownException struct {
                                                                                                                                                                                                                                                                        	Class   string
                                                                                                                                                                                                                                                                        	Message string

                                                                                                                                                                                                                                                                          UnknownException is an arbitrary exception from Java side. If exception class is not recognized by this driver, it will return UnknownException.

                                                                                                                                                                                                                                                                          func (UnknownException) Error

                                                                                                                                                                                                                                                                          func (e UnknownException) Error() string

                                                                                                                                                                                                                                                                          func (UnknownException) ExcClass

                                                                                                                                                                                                                                                                          func (e UnknownException) ExcClass() string

                                                                                                                                                                                                                                                                            ExcClass returns Java exception class

                                                                                                                                                                                                                                                                            func (UnknownException) ExcMessage

                                                                                                                                                                                                                                                                            func (e UnknownException) ExcMessage() string

                                                                                                                                                                                                                                                                              ExcMessage returns exception message


                                                                                                                                                                                                                                                                              Path Synopsis
                                                                                                                                                                                                                                                                              rw is the read-write package for reading and writing types from the OrientDB binary network protocol.
                                                                                                                                                                                                                                                                              rw is the read-write package for reading and writing types from the OrientDB binary network protocol.