Using event for objects communication

Question

hi,
i have two kinds of object, an producer and a consummator, i want to make them communicating with event.
when the producer have information to send, it wrapped within an event an send it to the consummator, do you have some documentation how to do
that, or samples
thanks for your help

Answer 1

// the Producer class...
class Producer
   EventListenerList elList = new EventListenerList();
   public final void addXxxxListener(XxxxListener l)
       this.elList.add(XxxxListener.class, l);
   public final void removeXxxxListener(XxxxListener l)
       this.elList.remove(XxxxListener.class, l);
   // do one of these for each type of XxxxEvent
   // there may be one or more
   public final void fireXxxxYyyyy(<arguments>)
      EventListener[] listeners = this.elList.getListeners(XxxxListener.class);
      if (listeners != null)
         XxxxEvent evt = new XxxxEvent(<arguments>);
         for (int i=0; i<this.elList.length; i++)
            ((XxxxListener)(listeners)).yyyyy(evt);
// this is what you called the Consumator...
interface XxxxListener
extends EventListener
public void yyyyy(XxxxEvent evt);
// the Event class...
class XxxxEvent
extends EventObject
public XxxxEvent(<arguments>)
For more info see the EventObject, EventListenerList and EventListener documentation pages.
Have fun.
Ben