The MongoDB\Driver\WriteConcern class

(mongodb >=1.0.0)

简介

MongoDB\Driver\WriteConcern describes the level of acknowledgement requested from MongoDB for write operations to a standalone mongod or to replica sets or to sharded clusters. In sharded clusters, mongos instances will pass the write concern on to the shards.

类摘要

final MongoDB\Driver\WriteConcern implements MongoDB\BSON\Serializable {
/* Constants */
const string MAJORITY = "majority" ;
/* 方法 */
final public object bsonSerialize ( void )
final public __construct ( string|integer $w [, integer $wtimeout [, boolean $journal ]] )
final public boolean|null getJournal ( void )
final public string|integer|null getW ( void )
final public integer getWtimeout ( void )
final public boolean isDefault ( void )
}

预定义常量

MongoDB\Driver\WriteConcern::MAJORITY

Majority of all the members in the set; arbiters, non-voting members, passive members, hidden members and delayed members are all included in the definition of majority write concern.

更新日志

版本 说明
1.2.0 Implements MongoDB\BSON\Serializable.

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