文字
MongoDB\Driver\Manager::selectServer
(mongodb >=1.0.0)
MongoDB\Driver\Manager::selectServer — Select a server matching a read preference
说明
final public MongoDB\Driver\Server MongoDB\Driver\Manager::selectServer
( MongoDB\Driver\ReadPreference
$readPreference
)
Selects a MongoDB\Driver\Server matching
readPreference. This may be used to preselect a server
in order to perform version checking before executing an operation.
参数
-
readPreference( MongoDB\Driver\ReadPreference ) -
Optionally, a MongoDB\Driver\ReadPreference to select the server for this operation. If none is given, the read preference from the MongoDB Connection URI will be used.
返回值
Returns an MongoDB\Driver\Server matching the read preference.
错误／异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
- Throws MongoDB\Driver\Exception\ConnectionException if connection to the server fails (for reasons other than authentication).
- Throws MongoDB\Driver\Exception\AuthenticationException if authentication is needed and fails.
- Throws MongoDB\Driver\Exception\RuntimeException if a server matching the read preference could not be found.
参见
- MongoDB\Driver\Server
- MongoDB\Driver\Manager::getServers() - Return the servers to which this manager is connected
- » Server Selection Specification