MongoDB\Driver
PHP マニュアル

The MongoDB\Driver\WriteConcern class

はじめに

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.

クラス概要

MongoDB\Driver\WriteConcern
final class MongoDB\Driver\WriteConcern implements MongoDB\BSON\Serializable, Serializable {
/* 定数 */
const string MongoDB\Driver\WriteConcern::MAJORITY = "majority";
/* プロパティ */
public readonly stringintnull $w;
public readonly boolnull $j;
public readonly int $wtimeout;
/* メソッド */
final public stdClass bsonSerialize()
final public __construct(stringint $w, intnull $wtimeout = null, boolnull $journal = null)
final public boolnull getJournal()
final public stringintnull getW()
final public int getWtimeout()
final public bool isDefault()
}

プロパティ

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.

定義済み定数

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.

変更履歴

バージョン 説明
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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