Class EventHandler

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.util.ArrayList globalListeners  
    • Constructor Summary

      Constructors 
      Constructor Description
      EventHandler()  
    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      abstract boolean acceptsEvent​(Event evt)
      Tests a given event to determine if this handler can handle that event.
      abstract boolean acceptsListener​(java.util.EventListener listener)  
      void addListener​(java.util.EventListener listener)  
      java.util.EventListener[] getListeners​(java.lang.Object eventTarget)  
      void handleEvent​(Event evt, java.lang.Object[] targets)
      This method handles all of the events.
      abstract void handleEvent​(Event evt, java.util.EventListener listener, int eventType)  
      void removeListener​(java.util.EventListener listener)  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • globalListeners

        protected java.util.ArrayList globalListeners
    • Constructor Detail

      • EventHandler

        public EventHandler()
    • Method Detail

      • acceptsEvent

        public abstract boolean acceptsEvent​(Event evt)
        Tests a given event to determine if this handler can handle that event.
        Parameters:
        evt - the event to test.
        Returns:
        true if this handler handles the event, false otherwise.
      • acceptsListener

        public abstract boolean acceptsListener​(java.util.EventListener listener)
      • handleEvent

        public abstract void handleEvent​(Event evt,
                                         java.util.EventListener listener,
                                         int eventType)
      • addListener

        public void addListener​(java.util.EventListener listener)
      • removeListener

        public void removeListener​(java.util.EventListener listener)
      • handleEvent

        public void handleEvent​(Event evt,
                                java.lang.Object[] targets)
        This method handles all of the events. First passing each event to handleEvent(Event, EventListener, int) for every registered listener in the globalListeners list. Then, it passes the event to each of the target listeners passed in via targets.
        Parameters:
        evt - the event to process.
        targets - the local listeners to pass the event to.
      • getListeners

        public java.util.EventListener[] getListeners​(java.lang.Object eventTarget)