MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening

(mongodb >=1.13.0)

MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening — Notification method for opening the topology

说明

abstract public MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening(MongoDB\Driver\Monitoring\TopologyOpeningEvent $event): void

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

注意: Due to the driver's connection handling and persistence behavior, this event may not be observed if a MongoDB\Driver\Manager uses a previously persisted » libmongoc client.

参数

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

返回值

没有返回值。

错误／异常

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

参见

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