Package VASSAL.tools.concurrent.listener

Class DefaultEventListenerSupport<T>

java.lang.Object

VASSAL.tools.concurrent.listener.DefaultEventListenerSupport<T>

All Implemented Interfaces:

EventListenerSupport<T>

public class DefaultEventListenerSupport<T>
extends Object
implements EventListenerSupport<T>

A class to provide support for EventListeners.

Since:

3.2.0

Author:

Joel Uckelman

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<EventListener<? super T>>	listeners
protected final Object	src

Constructor Summary

Constructors

Constructor	Description
DefaultEventListenerSupport(Object src)	Creates a DefaultEventListenerSupport.

Method Summary

Modifier and Type	Method	Description
void	addEventListener(EventListener<? super T> l)	Adds an EventListener.
List<EventListener<? super T>>	getEventListeners()	Gets the list of listeners.
boolean	hasEventListeners()	Checks whether there are any EventListeners.
void	notify(T event)	Notify the listeners of an event.
void	removeEventListener(EventListener<? super T> l)	Removes an EventListener.

Methods inherited from class java.lang.Object

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

Field Details

listeners

protected final List<EventListener<? super T>> listeners

src

protected final Object src

Constructor Details

DefaultEventListenerSupport

public DefaultEventListenerSupport(Object src)

Creates a DefaultEventListenerSupport.

Parameters:

src - the source of events

Method Details

addEventListener

public void addEventListener(EventListener<? super T> l)

Adds an EventListener.

Specified by:

addEventListener in interface EventListenerSupport<T>

Parameters:

l - the listener to add

removeEventListener

public void removeEventListener(EventListener<? super T> l)

Removes an EventListener.

Specified by:

removeEventListener in interface EventListenerSupport<T>

Parameters:

l - the listener to remove

hasEventListeners

public boolean hasEventListeners()

Checks whether there are any EventListeners.

Specified by:

hasEventListeners in interface EventListenerSupport<T>

Returns:

true if there are any listeners

getEventListeners

public List<EventListener<? super T>> getEventListeners()

Gets the list of listeners.

Specified by:

getEventListeners in interface EventListenerSupport<T>

Returns:

the list of listeners

notify

public void notify(T event)

Notify the listeners of an event.

Specified by:

notify in interface EventListenerSupport<T>

Parameters:

event - the event to send