org.perfectjpattern.core.behavioral.observer
Class AsynchronousSubject<E>

java.lang.Object
  org.perfectjpattern.core.behavioral.observer.Subject<E>
      org.perfectjpattern.core.behavioral.observer.AsynchronousSubject<E>

Type Parameters:

E - Type of event data this ISubject notifies with.

All Implemented Interfaces:

ISubject<E>

public class AsynchronousSubject<E>
extends Subject<E>

Implementation of ISubject that notifies Observer instances from separate threads of execution.

Version:

$Revision: 1.0 $ $Date: Nov 13, 2007 10:28:42 PM $

Author:

Giovanni Azua

See Also:

Subject

Field Summary

Fields inherited from class org.perfectjpattern.core.behavioral.observer.Subject

EMPTY_ARRAY

Constructor Summary

AsynchronousSubject()

Method Summary

void	notifyObservers(E anEventData) Notifies the attached IObserver instances that a change has occurred.

Methods inherited from class org.perfectjpattern.core.behavioral.observer.Subject

attach, clear, detach, getObservers, size

Methods inherited from class java.lang.Object

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

Constructor Detail

AsynchronousSubject

public AsynchronousSubject()

Method Detail

notifyObservers

public void notifyObservers(E anEventData)

Notifies the attached IObserver instances that a change has occurred. It is compulsory to provide a non null parameter anEventData. For situations where passing information is not required use instead NullEventData singleton instance.

Specified by:

notifyObservers in interface ISubject<E>

Overrides:

notifyObservers in class Subject<E>

Parameters:

anEventData - Event data pushed to IObserver instances.