uk.ac.starlink.util.gui

Class WeakItemListener

java.lang.Object

uk.ac.starlink.util.gui.WeakItemListener

All Implemented Interfaces:

ItemListener, EventListener

public class WeakItemListener
extends Object
implements ItemListener

Item listener which delegates to another one as long as it is reachable, but only retains a weak reference to it. Adding a listener to an object in this way will not prevent the listener (and any of its references) from being garbage collected.

Since:

20 Jan 2005

Author:

Mark Taylor

Constructor Summary

Constructors

Constructor and Description
WeakItemListener(ItemListener base) Constructs a new listener based on an existing one.

Method Summary

Modifier and Type	Method and Description
void	itemStateChanged(ItemEvent evt)

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakItemListener

public WeakItemListener(ItemListener base)

Constructs a new listener based on an existing one.

Parameters:

base - listener

Method Detail

itemStateChanged

public void itemStateChanged(ItemEvent evt)

Specified by:

itemStateChanged in interface ItemListener