The MongoDB\Driver\WriteConcern class

    (mongodb >=1.0.0)

    Einführung

    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.

    Klassenbeschreibung

    final class MongoDB\Driver\WriteConcern implements MongoDB\BSON\Serializable, Serializable {
    /* Konstanten */
    const string MAJORITY = "majority";
    /* Eigenschaften */
    public readonly string|int|null $w;
    public readonly ?bool $j;
    public readonly int $wtimeout;
    /* Methoden */
    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
    }

    Eigenschaften

    w
    The write concern value (integer number of nodes, the string "majority", or a custom write concern tag name), or null if not set.
    j
    Whether write operations must be committed to the journal before acknowledged, or null if not specified.
    wtimeout
    The timeout in milliseconds to wait for write concern acknowledgement. A value of 0 means to wait indefinitely.

    Vordefinierte Konstanten

    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.

    Changelog

    Version Beschreibung
    PECL mongodb 2.3.0 Added public readonly properties.
    PECL mongodb 1.7.0 Implements Serializable.
    PECL mongodb 1.2.0 Implements MongoDB\BSON\Serializable.

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