MessageEvent

• an application to send events to multiple controls connected to a Display
• client applications to send events to a server Display (or by a server sending events to all clients connected to its Display)
• a distributed application to send events to all its parts connected via a Display

import java.rmi.RemoteException;

import visad.java2d.DisplayImplJ2D;

import visad.MessageEvent;
import visad.VisADException;

public class SimpleMsgEvent
  implements visad.MessageListener
{
  private DisplayImplJ2D dpy;

  public SimpleMsgEvent()
    throws RemoteException, VisADException
  {
    dpy = new DisplayImplJ2D("dpy");
    dpy.addMessageListener(this);
    dpy.sendMessage(new MessageEvent(0));
  }

  public void receiveMessage(MessageEvent evt)
    throws RemoteException
  {
    final int id = evt.getId();

    System.out.println(id);

    if (id > 10) System.exit(0);

    dpy.sendMessage(new MessageEvent(id + 1));
  }

  public static void main(String[] args)
    throws RemoteException, VisADException
  {
    new SimpleMsgEvent();
  }
}