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 class MongoDB\Driver\WriteConcern implements MongoDB\BSON\Serializable, Serializable {

/* Constants */

const string MAJORITY = "majority";

/* 方法 */

final public bsonSerialize(): object

final public __construct(string|int $w, int $wtimeout = ?, bool $journal = ?)

final public getJournal(): ?bool

final public getW(): string|int|null

final public getWtimeout(): int|MongoDB\BSON\Int64

final public isDefault(): bool

final public serialize(): string

final public unserialize(string $serialized): 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
PECL mongodb 1.7.0	Implements Serializable.
PECL mongodb 1.2.0	Implements MongoDB\BSON\Serializable.

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
MongoDB\Driver\WriteConcern::serialize — Serialize a WriteConcern
MongoDB\Driver\WriteConcern::unserialize — Unserialize a WriteConcern

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官方地址：https://www.php.net/manual/en/class.mongodb-driver-writeconcern.php

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The MongoDB\Driver\WriteConcern class

简介

类摘要

预定义常量

更新日志

目录

User Contributed Notes