MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged
(mongodb >=1.13.0)
MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged β Notification method for a topology description change
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abstract public function MongoDB\Driver\Monitoring\SDAMSubscriber::topologyChanged(MongoDB\Driver\Monitoring\TopologyChangedEvent
$event): voidIf 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.
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event(MongoDB\Driver\Monitoring\TopologyChangedEvent)- An event object encapsulating information about the changed topology description.
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- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
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- MongoDB\Driver\Monitoring\TopologyChangedEvent
- MongoDB\Driver\Monitoring\addSubscriber() - Registers a monitoring event subscriber globally
- MongoDB\Driver\Manager::addSubscriber() - Registers a monitoring event subscriber with this Manager
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