MongoDB\Driver\Manager::selectServer
(mongodb >=1.0.0)
MongoDB\Driver\Manager::selectServer — Select a server matching a read preference
Descripción
$readPreference = null): MongoDB\Driver\Server
Selects a MongoDB\Driver\Server matching
readPreference. If
readPreference is null or omitted, the primary
server will be selected by default. This may be used to preselect a server in
order to perform version checking before executing an operation.
Nota: Unlike MongoDB\Driver\Manager::getServers(), this method will initialize database connections and perform server discovery if necessary. See the » Server Selection Specification for additional information.
Parámetros
-
readPreference(MongoDB\Driver\ReadPreference) -
The read preference to use for selecting a server. If
nullor omitted, the primary server will be selected by default.
Valores devueltos
Returns a MongoDB\Driver\Server matching the read preference.
Errores/Excepciones
- Lanza una MongoDB\Driver\Exception\InvalidArgumentException en errores de análisis de argumentos.
- Lanza una MongoDB\Driver\Exception\ConnectionException si la conexión al servidor falla (por razones diferentes a la autenticación).
- Lanza una MongoDB\Driver\Exception\AuthenticationException si la autenticación es necesaria y falla.
- Throws MongoDB\Driver\Exception\RuntimeException if a server matching the read preference could not be found.
Historial de cambios
| Versión | Descripción |
|---|---|
| PECL mongodb 1.11.0 |
The readPreference is now optional. If null or
omitted, the primary server will be selected by default.
|
Ver también
- MongoDB\Driver\Server
- MongoDB\Driver\Manager::getServers() - Return the servers to which this manager is connected
- » Server Selection Specification
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