cassandra

package
Version: v1.27.0 Latest Latest
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Published: Oct 6, 2021 License: Apache-2.0 Imports: 0 Imported by: 230

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Types

type Consistency

type Consistency uint16

Consistency is Cassandra's consistency level for queries.

const (
	// Any ...
	Any Consistency = 0x00
	// One ...
	One Consistency = 0x01
	// Two ...
	Two Consistency = 0x02
	// Three ...
	Three Consistency = 0x03
	// Quorum ...
	Quorum Consistency = 0x04
	// All ...
	All Consistency = 0x05
	// LocalQuorum ...
	LocalQuorum Consistency = 0x06
	// EachQuorum ...
	EachQuorum Consistency = 0x07
	// LocalOne ...
	LocalOne Consistency = 0x0A
)

type Iterator

type Iterator interface {
	Scan(dest ...interface{}) bool
	Close() error
}

Iterator is an abstraction of gocql.Iter

type Query

type Query interface {
	UpdateQuery
	Iter() Iterator
	Bind(v ...interface{}) Query
	Consistency(level Consistency) Query
	PageSize(int) Query
}

Query is an abstraction of gocql.Query

type Session

type Session interface {
	Query(stmt string, values ...interface{}) Query
	Close()
}

Session is an abstraction of gocql.Session

type UpdateQuery

type UpdateQuery interface {
	Exec() error
	String() string

	// ScanCAS executes a lightweight transaction (i.e. an UPDATE or INSERT
	// statement containing an IF clause). If the transaction fails because
	// the existing values did not match, the previous values will be stored
	// in dest.
	ScanCAS(dest ...interface{}) (bool, error)
}

UpdateQuery is a subset of Query just for updates

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