net.sourceforge.xwing
Class AbstractSourceSink

java.lang.Object
  net.sourceforge.xwing.AbstractSourceSink

All Implemented Interfaces:

SourceSink

Direct Known Subclasses:

CachingSourceSink, DefaultValueSourceSink, FilteringSourceSink, MapSourceSink, NodeSourceSink, NullSourceSink, PrefSourceSink, SimpleSourceSink, WeakSourceSink

public abstract class AbstractSourceSink

extends Object

implements SourceSink

A partial implementation of SourceSink that takes care of managing the list of listeners. Derived classes must still implement get() and set().

Version:

$Revision: 1.2 $

Author:

Scott Howlett

Constructor Summary

AbstractSourceSink()

Method Summary

void	addChangeListener(ChangeListener l) Add the specified listener to the list of interested change listeners.
protected void	fireStateChanged() Calls the stateChanged method of all registered listeners.
void	removeChangeListener(ChangeListener l) Remove the specified listener from the list of interested change listeners.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sourceforge.xwing.SourceSink

get, set

Constructor Detail

AbstractSourceSink

public AbstractSourceSink()

Method Detail

addChangeListener

public void addChangeListener(ChangeListener l)

Description copied from interface: SourceSink

Add the specified listener to the list of interested change listeners. In general, whenever our value changes (either a new value is set via the set() method or the existing value's internal state changes), all subscribed listeners are notified with a ChangeEvent.

Specified by:

addChangeListener in interface SourceSink

Parameters:

l - The listener to add.

removeChangeListener

public void removeChangeListener(ChangeListener l)

Description copied from interface: SourceSink

Remove the specified listener from the list of interested change listeners.

Specified by:

removeChangeListener in interface SourceSink

Parameters:

l - The listener to remove.

fireStateChanged

protected void fireStateChanged()

Calls the stateChanged method of all registered listeners. Derived classes should call this method whenever they change the internal state.