org.savarese.unicorn.ui.event
Class ChainedEventListener<L extends java.util.EventListener,E extends java.util.EventObject>

java.lang.Object
  org.savarese.unicorn.ui.event.ChainedEventListener<L,E>

All Implemented Interfaces:

java.util.EventListener

Direct Known Subclasses:

ChainedActionListener

public abstract class ChainedEventListener<L extends java.util.EventListener,E extends java.util.EventObject>
extends java.lang.Object
implements java.util.EventListener

An event listener that process events for a chain of event listeners.

Nested Class Summary

static interface

ChainedEventListener.EventProcessor<L extends java.util.EventListener,E extends java.util.EventObject> An interface for delivering events to an event listener.

Field Summary

protected java.util.LinkedList<L>	_listeners_ The list of listeners to process.
protected ChainedEventListener.EventProcessor<L,E>	_processor_ The event processor to use to process events.

Constructor Summary

ChainedEventListener(ChainedEventListener.EventProcessor<L,E> processor)
Instantiates a ChainedEventListner with the given ChainedEventListener.EventProcessor

Method Summary

protected void	_processEvent_(E e) Delivers and event to each listener in _listeners_ using _processor_.
void	addEventListener(L listener) Adds an event listener.
void	removeEventListener(L listener) Removes an event listener.

Methods inherited from class java.lang.Object

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

Field Detail

_listeners_

protected java.util.LinkedList<L extends java.util.EventListener> _listeners_

The list of listeners to process.

_processor_

protected ChainedEventListener.EventProcessor<L extends java.util.EventListener,E extends java.util.EventObject> _processor_

The event processor to use to process events.

Constructor Detail

ChainedEventListener

public ChainedEventListener(ChainedEventListener.EventProcessor<L,E> processor)

Instantiates a ChainedEventListner with the given ChainedEventListener.EventProcessor

Method Detail

_processEvent_

protected void _processEvent_(E e)

Delivers and event to each listener in _listeners_ using _processor_.

Parameters:

e - The event to process.

addEventListener

public void addEventListener(L listener)

Adds an event listener.

Parameters:

listener - The event listener to add.

removeEventListener

public void removeEventListener(L listener)

Removes an event listener.

Parameters:

listener - The event listener to remove.