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MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged	MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening

MongoDB\Driver\Monitoring\SDAMSubscriber	Last updated: Mon, 26 Oct 2026

MongoDB\Driver\Monitoring\SDAMSubscriber::topologyClosed

(mongodb >=1.13.0)

MongoDB\Driver\Monitoring\SDAMSubscriber::topologyClosed — Notification method for closing the topology

Description

abstract public function MongoDB\Driver\Monitoring\SDAMSubscriber::topologyClosed(MongoDB\Driver\Monitoring\TopologyClosedEvent $event): void

If the subscriber is registered, this method is called when the topology is closed.

Note:
Due to the driver's connection handling and persistence behavior, this event can only be observed when a MongoDB\Driver\Manager is created with the "disableClientPersistence" driver option and freed before request shutdown (RSHUTDOWN).

Parameters

event (MongoDB\Driver\Monitoring\TopologyClosedEvent): An event object encapsulating information about the closed topology.

Return Values

No value is returned.

Errors/Exceptions

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

See Also

MongoDB\Driver\Monitoring\TopologyClosedEvent
MongoDB\Driver\Monitoring\addSubscriber() - Registers a monitoring event subscriber globally
MongoDB\Driver\Manager::addSubscriber() - Registers a monitoring event subscriber with this Manager

MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged	MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening

MongoDB\Driver\Monitoring\SDAMSubscriber	Last updated: Mon, 26 Oct 2026