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 Detail

      • nodeUP

        void nodeUP​(TopologyMember member,
            boolean last)
        Triggered when a node joins the cluster.
        Parameters:
        member -
        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:
        eventUID -
        nodeID - the id of the node leaving the cluster