/**
* Removes the PropertyChangeListener from the internal list. If the PropertyChangeListener is not
* on the list, nothing is done.
*
* @see #addPropertyChangeListener
* @param listener The PropertyChangeListener.
*/
public void removePropertyChangeListener(PropertyChangeListener listener) {
if (listener == null) throw new NullPointerException("listener");
if (changes_ != null) changes_.removePropertyChangeListener(listener); // @CRS
// must call the parents change listener since it is
// in a different package.
super.removePropertyChangeListener(listener);
}
/**
* Adds a PropertyChangeListener. The specified PropertyChangeListener's <b>propertyChange</b>
* method is called each time the value of any bound property is changed.
*
* @see #removePropertyChangeListener
* @param listener The PropertyChangeListener.
*/
public void addPropertyChangeListener(PropertyChangeListener listener) {
if (listener == null) throw new NullPointerException("listener");
if (changes_ == null) changes_ = new PropertyChangeSupport(this); // @CRS
changes_.addPropertyChangeListener(listener);
// must call the parents change listener since it is
// in a different package.
super.addPropertyChangeListener(listener);
}