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
/* Constants */
/* 方法 */
}
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.
Table of Contents
- MongoDB\Driver\WriteConcern::bsonSerialize — Returns an object for BSON serialization
- MongoDB\Driver\WriteConcern::__construct — Create a new WriteConcern
- MongoDB\Driver\WriteConcern::getJournal — Returns the WriteConcern's "journal" option
- MongoDB\Driver\WriteConcern::getW — Returns the WriteConcern's "w" option
- MongoDB\Driver\WriteConcern::getWtimeout — Returns the WriteConcern's "wtimeout" option
- MongoDB\Driver\WriteConcern::isDefault — Checks if this is the default write concern