Package org.apache.activemq.artemis.api.core.client

Interface ClusterTopologyListener

public interface ClusterTopologyListener
A cluster topology listener.

Used to get notification of topology events. After adding a listener to the cluster connection, the listener receives nodeUP(TopologyMember, boolean) for all the current topology members.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    nodeDown(long eventUID, String nodeID)
    Triggered when a node leaves the cluster.
    void
    nodeUP(TopologyMember member, boolean last)
    Triggered when a node joins the cluster.

  • Method Details

    • nodeUP

      void nodeUP(TopologyMember member, boolean last)
      Triggered when a node joins the cluster.
      Parameters:
      last - if the whole cluster topology is being transmitted (after adding the listener to the cluster connection) this parameter will be true for the last topology member.

    • nodeDown

      void nodeDown(long eventUID, String nodeID)
      Triggered when a node leaves the cluster.
      Parameters:
      nodeID - the id of the node leaving the cluster