MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription
(mongodb >=1.13.0)
MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription — Returns the previous description for the topology
Beschreibung
Parameter-Liste
Diese Funktion besitzt keine Parameter.
Rückgabewerte
Returns the previous MongoDB\Driver\TopologyDescription for the topology.
Fehler/Exceptions
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.