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    The MongoDB\Driver\Monitoring\TopologyChangedEvent class

    (mongodb >=1.13.0)

    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

    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 getNewDescription(): MongoDB\Driver\TopologyDescription
    final public getPreviousDescription(): MongoDB\Driver\TopologyDescription
    final public getTopologyId(): MongoDB\BSON\ObjectId
    }

    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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