org.apache.wicket.util.listener
Class ListenerSet

java.lang.Object
  org.apache.wicket.util.listener.ListenerSet

Direct Known Subclasses:

ChangeListenerSet

public abstract class ListenerSet
extends java.lang.Object

Holds a set of listeners implementing the IListener tag interface. Subclasses can implement notification methods that cast the listener to the correct subinterface and invoke the appropriate listener method.

Author:

Jonathan Locke

Constructor Summary

ListenerSet()

Method Summary

boolean	add(IListener listener) Adds a listener to this set of listeners.
protected abstract void	notifyListener(IListener listener) Notifies a listener.
void	notifyListeners() Notifies each listener in this set by calling notifyListener.
void	remove(IListener listener) Removes a listener from this set.

Methods inherited from class java.lang.Object

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

Constructor Detail

ListenerSet

public ListenerSet()

Method Detail

add

public boolean add(IListener listener)

Adds a listener to this set of listeners.

Parameters:

listener - The listener to add

Returns:

true if the set did not already contain the specified listener.

notifyListeners

public void notifyListeners()

Notifies each listener in this set by calling notifyListener.

remove

public void remove(IListener listener)

Removes a listener from this set.

Parameters:

listener - The listener to remove

notifyListener

protected abstract void notifyListener(IListener listener)

Notifies a listener.

Parameters:

listener - The listener to notify