MongoDB\Driver\Monitoring\SDAMSubscriber
PHP Manual

MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged

Notification method for a topology description change

Description

abstract public void MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged(MongoDB\Driver\Monitoring\TopologyChangedEvent $event)

If the subscriber is registered, this method is called when the topology's description changes. For example, a topology discovering a new replica set primary would cause its topology description to change.

Parameters

event (MongoDB\Driver\Monitoring\TopologyChangedEvent)

An event object encapsulating information about the changed topology description.

Return Values

No value is returned.

Errors/Exceptions

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

See Also

  • MongoDB\Driver\Monitoring\TopologyChangedEvent
  • MongoDB\Driver\Monitoring\addSubscriber
  • MongoDB\Driver\Manager::addSubscriber