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MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription

(mongodb >=1.13.0)

MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescriptionReturns the previous description for the topology

说明

final public MongoDB\Driver\Monitoring\TopologyChangedEvent::getPreviousDescription(): MongoDB\Driver\TopologyDescription

参数

此函数没有参数。

返回值

Returns the previous MongoDB\Driver\TopologyDescription for the topology.

错误/异常

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