MongoCursorInterface::setReadPreference
(PECL mongo >=1.6.0)
MongoCursorInterface::setReadPreference — Set the read preference for this query
Açıklama
abstract public MongoCursorInterface::setReadPreference
( string
$read_preference
[, array $tags
] ) : MongoCursorInterfaceDeğiştirgeler
-
read_preference -
The read preference mode:
MongoClient::RP_PRIMARY,MongoClient::RP_PRIMARY_PREFERRED,MongoClient::RP_SECONDARY,MongoClient::RP_SECONDARY_PREFERRED, orMongoClient::RP_NEAREST. -
tags -
An array of zero or more tag sets, where each tag set is itself an array of criteria used to match tags on replica set members.
Dönen Değerler
Returns this cursor.
Hatalar/İstisnalar
Emits E_WARNING if either parameter is invalid, or if one or more tag sets are provided with the MongoClient::RP_PRIMARY read preference mode.
Ayrıca Bakınız
- The read preferences documentation.
- MongoCursorInterface::getReadPreference() - Get the read preference for this query
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