adavid.util
Class Observatory

java.lang.Object
  |
  +--adavid.util.Observatory

public class Observatory

extends java.lang.Object

Constructor Summary

Observatory()

Method Summary

static void	notify(java.lang.Object observable, java.lang.Object arg) notify observers
static void	register(java.lang.Object observable, Updateable observer) register an Updateable object
static void	unregister(java.lang.Object observable) unregister all Updateable objects of an observable
static void	unregister(java.lang.Object observable, Updateable observer) unregister an Updateable object

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Observatory

public Observatory()

Method Detail

register

public static void register(java.lang.Object observable,
                            Updateable observer)

register an Updateable object

notify

public static void notify(java.lang.Object observable,
                          java.lang.Object arg)

notify observers

unregister

public static void unregister(java.lang.Object observable,
                              Updateable observer)

unregister an Updateable object

unregister

public static void unregister(java.lang.Object observable)

unregister all Updateable objects of an observable