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    The MongoDB\Driver\WriteConcern class

    (mongodb >=1.0.0)

    Вступ

    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.

    Короткий огляд класу

    final class MongoDB\Driver\WriteConcern implements MongoDB\BSON\Serializable, Serializable {
    /* Константи */
    const string MAJORITY = "majority";
    /* Властивості */
    public readonly string|int|null $w;
    public readonly ?bool $j;
    public readonly int $wtimeout;
    /* Методи */
    final public function bsonSerialize(): stdClass
    final public function __construct(string|int $w, ?int $wtimeout = null, ?bool $journal = null)
    final public function getJournal(): ?bool
    final public function getW(): string|int|null
    final public function getWtimeout(): int
    final public function isDefault(): bool
    }

    Властивості

    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.

    Попередньо визначені константи

    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.

    Журнал змін

    Версія Опис
    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.

    Зміст

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