oracle.javatools.editor

Class WeakPropertyChangeSupport

java.lang.Object

oracle.javatools.editor.WeakPropertyChangeSupport

public final class WeakPropertyChangeSupport
extends java.lang.Object

The WeakPropertyChangeSupport is similar to PropertyChangeSupport, but holds the PropertyChangeListeners with a WeakReference. This allows listeners to be garbage collected without having to explicitly be removed.

Constructor Summary

Constructors

Constructor and Description
WeakPropertyChangeSupport(java.lang.Object source) Construct a new WeakPropertyChangeSupport.

Method Summary

Methods

Modifier and Type	Method and Description
void	addPropertyChangeListener(java.beans.PropertyChangeListener listener) Adds a PropertyChangeListener to the listener list.
void	firePropertyChange(java.beans.PropertyChangeEvent event) Fires a PropertyChangeEvent to each added listener.
void	firePropertyChange(java.lang.String propertyName, java.lang.Object oldValue, java.lang.Object newValue) Fires a PropertyChangeEvent to each added listener.
void	removePropertyChangeListener(java.beans.PropertyChangeListener listener) Removes a PropertyChangeListener from the listener list.

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakPropertyChangeSupport

public WeakPropertyChangeSupport(java.lang.Object source)

Construct a new WeakPropertyChangeSupport.

Parameters:

source - the source of the property changes to manage.

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

Adds a PropertyChangeListener to the listener list. If the listener is already present it is not added a second time.

Parameters:

listener - the listener to add

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

Removes a PropertyChangeListener from the listener list.

Parameters:

listener - the listener to remove

firePropertyChange

public void firePropertyChange(java.lang.String propertyName,
                      java.lang.Object oldValue,
                      java.lang.Object newValue)

Fires a PropertyChangeEvent to each added listener. If the values are equal, the event will not be fired.

firePropertyChange

public void firePropertyChange(java.beans.PropertyChangeEvent event)

Fires a PropertyChangeEvent to each added listener. If the values are equal, the event will not be fired.