The MongoDB\Driver\ReadPreference class

(mongodb >=1.0.0)

Введение

Обзор классов

final MongoDB\Driver\ReadPreference {
/* Constants */
const integer RP_PRIMARY = 1 ;
const integer RP_PRIMARY_PREFERRED = 5 ;
const integer RP_SECONDARY = 2 ;
const integer RP_SECONDARY_PREFERRED = 6 ;
const integer RP_NEAREST = 10 ;
/* Методы */
final public __construct ( int $mode [, array $tagSets ] )
final public integer getMode ( void )
final public array getTagSets ( void )
}

Предопределенные константы

MongoDB\Driver\ReadPreference::RP_PRIMARY

All operations read from the current replica set primary. This is the default read preference for MongoDB.

MongoDB\Driver\ReadPreference::RP_PRIMARY_PREFERRED

In most situations, operations read from the primary but if it is unavailable, operations read from secondary members.

MongoDB\Driver\ReadPreference::RP_SECONDARY

All operations read from the secondary members of the replica set.

MongoDB\Driver\ReadPreference::RP_SECONDARY_PREFERRED

In most situations, operations read from secondary members but if no secondary members are available, operations read from the primary.

MongoDB\Driver\ReadPreference::RP_NEAREST

Operations read from member of the replica set with the least network latency, irrespective of the member's type.

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