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): voidIf 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
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备份地址：http://www.lvesu.com/blog/php/mongodb-driver-monitoring-sdamsubscriber.topologyopening.php