MongoDB\Driver\Monitoring
PHP Manual

The MongoDB\Driver\Monitoring\TopologyChangedEvent class

Introduction

The MongoDB\Driver\Monitoring\TopologyChangedEvent class encapsulates information about a changed topology description. For example, a topology discovering a new replica set primary would cause its topology description to change.

Class synopsis

MongoDB\Driver\Monitoring\TopologyChangedEvent
final class MongoDB\Driver\Monitoring\TopologyChangedEvent {
/* Properties */
public readonly MongoDB\BSON\ObjectId $topologyId;
public readonly MongoDB\Driver\TopologyDescription $newDescription;
public readonly MongoDB\Driver\TopologyDescription $previousDescription;
/* Methods */
final public MongoDB\Driver\TopologyDescription getNewDescription()
final public MongoDB\Driver\TopologyDescription getPreviousDescription()
final public MongoDB\BSON\ObjectId getTopologyId()
}

Properties

topologyId
The topology ID.
newDescription
The new topology description.
previousDescription
The previous topology description.

Changelog

Version Description
PECL mongodb 2.3.0 Added public readonly properties.
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