Package org.onosproject.event

Class ListenerTracker

  • @Beta
@NotThreadSafe
public class ListenerTracker
extends Object
    Utility to keeps track of registered Listeners.

    Usage Example: 

        private ListenerTracker listeners;

    @Activate
    protected void activate() {
        listeners = new ListenerTracker();
        listeners.addListener(mastershipService, new InternalMastershipListener())
                 .addListener(deviceService, new InternalDeviceListener())
                 .addListener(linkService, new InternalLinkListener())
                 .addListener(topologyService, new InternalTopologyListener())
                 .addListener(hostService, new InternalHostListener());
    }

    @Deactivate
    protected void deactivate() {
        listeners.removeListeners();
    }