edu.cuny.cat.task
Class DispatchingTask

java.lang.Object
  java.util.Observable
      edu.cuny.cat.task.DispatchingTask

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

EventDispatchingTask, MessageDispatchingTask

public abstract class DispatchingTask
extends java.util.Observable
implements java.lang.Runnable

Defines the interface for the task of dispatching events or messages to specified receivers. It is observable and its observers are notified if the task fails to accomplish.

Version:

$Revision: 1.2 $

Author:

Jinzhong Niu

Field Summary

int	tid an integer uniquely identifying this task and also providing a way to sort tasks as the order they are created

Constructor Summary

DispatchingTask()

Method Summary

void	failedOn(java.lang.Object receiver) notifies the observers of the failure of dispatching to the specified receiver.
java.lang.String	toString()

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Runnable

run

Field Detail

tid

public int tid

an integer uniquely identifying this task and also providing a way to sort tasks as the order they are created

Constructor Detail

DispatchingTask

public DispatchingTask()

Method Detail

failedOn

public void failedOn(java.lang.Object receiver)

notifies the observers of the failure of dispatching to the specified receiver.

Parameters:

receiver - the receiver involved in the failure

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object