Package com.opencloud.rhino.facilities.clusterstate

Interface ClusterStateChangeListener

  • public interface ClusterStateChangeListener

    Listener interface implemented by resource adaptors to receive cluster state change callbacks.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void clusterStateChange​(int[] running, int[] joined, int[] left)
      Notification that the cluster has changed state with respect to the resource adaptor entity that attached the listener.

    • Method Detail

      • clusterStateChange

        void clusterStateChange​(int[] running,
                        int[] joined,
                        int[] left)

        Notification that the cluster has changed state with respect to the resource adaptor entity that attached the listener.

        A running node is a node that satisfies the following conditions:

        • the node is a member of the cluster’s primary component

        • the resource adaptor entity is in the Active state on the node

        • the SLEE is in the Running state on the node

        The running set is a superset of the joined set and has an empty intersection with the left set.

        NB: A resource adaptor entity will leave the running state on a node if it or the SLEE transitions to the Stopping state on that node.

        Parameters:
        running - the current set of cluster nodes where the resource adaptor entity is running
        joined - the set of nodes that previously did not satisfy the conditions required to be in the running set but now do
        left - the set of nodes that previously did satisfy the conditions required to be in the running set but now don’t