PHP Manual
MongoDB\Driver\Monitoring\TopologyChangedEvent
Returns the previous description for the topology

MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription

(mongodb >=1.13.0)

MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription — Returns the previous description for the topology

説明

final public function MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription(): MongoDB\Driver\TopologyDescription

パラメータ

この関数にはパラメータはありません。

戻り値

Returns the previous MongoDB\Driver\TopologyDescription for the topology.

エラー / 例外

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

関連キーワード:

MongoDB Driver Monitoring TopologyChangedEvent previous topology description getPreviousDescription TopologyDescription getNewDescription getTopologyId mongodb final Throws Exception InvalidArgumentException argument parsing errors

関連する関数・ページ:

mongodb-driver-monitoring-topologychangedevent.getnewdescription class.mongodb-driver-monitoring-topologychangedevent mongodb-driver-monitoring-topologychangedevent.gettopologyid mongodb-driver-monitoring-sdamsubscriber.topologychanged mongodb-driver-monitoring-serverchangedevent.getpreviousdescription mongodb-driver-monitoring-serverchangedevent.gettopologyid