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    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 {
    /* 常量 */
    const string MAJORITY = "majority";
    /* 方法 */
    final public bsonSerialize(): stdClass
    final public __construct(string|int $w, ?int $wtimeout = null, ?bool $journal = null)
    final public getJournal(): ?bool
    final public getW(): string|int|null
    final public getWtimeout(): int
    final public isDefault(): bool
    final public serialize(): string
    final public unserialize(string $data): 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.

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