Interface MultiEventListenerSupport

All Known Implementing Classes:

DefaultMultiEventListenerSupport

public interface MultiEventListenerSupport

An interface to provide support for EventListeners.

Since:

3.2.0

Author:

Joel Uckelman

Method Summary

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

Method Details

addEventListener

<T> void addEventListener(Class<T> c,
 EventListener<? super T> l)

Adds an EventListener.

Parameters:

c - the class to listen for

l - the listener to add

removeEventListener

<T> void removeEventListener(Class<T> c,
 EventListener<? super T> l)

Removes an EventListener.

Parameters:

c - the class to check

l - the listener to remove

hasEventListeners

boolean hasEventListeners(Class<?> c)

Checks whether there are any EventListeners.

Parameters:

c - the class to check

Returns:

true if there are any listeners for the given class

getEventListeners

<T> List<EventListener<? super T>> getEventListeners(Class<T> c)

Gets the list of listeners.

Parameters:

c - the class to check

Returns:

the list of listeners for the given class

notify

void notify(Object event)

Notify the listeners of an event.

Parameters:

event - the event to send