Hi there,
It seems that Sun has removed everything except the constructor from
javax.swing.event.SwingPropertyChangeSupport. See
http://java.sun.com/j2se/1.5.0/docs/guide/swing/1.5/index.html#swingMisc
for details.
2006-02-06 Roman Kennke <[EMAIL PROTECTED]>
* javax/swing/event/SwingPropertyChangeSupport.java
(listeners): Removed field.
(propertyListeners): Removed field.
(source): Removed field.
(SwingPropertyChangeSupport()): Removed initialization of removed
fields.
(addPropertyChangeListener): Removed methods.
(removePropertyChangeListener): Removed methods.
(getPropertyChangeListeners): Removed methods.
(firePropertyChange): Removed methods.
(hasListeners): Removed methods.
/Roman
Index: javax/swing/event/SwingPropertyChangeSupport.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/event/SwingPropertyChangeSupport.java,v
retrieving revision 1.9
diff -u -r1.9 SwingPropertyChangeSupport.java
--- javax/swing/event/SwingPropertyChangeSupport.java 3 Feb 2006 11:20:46 -0000 1.9
+++ javax/swing/event/SwingPropertyChangeSupport.java 6 Feb 2006 12:48:50 -0000
@@ -39,48 +39,24 @@
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
-import java.beans.PropertyChangeListenerProxy;
import java.beans.PropertyChangeSupport;
-import java.util.ArrayList;
-import java.util.EventListener;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
/**
* Provides a mechanism for registering [EMAIL PROTECTED] PropertyChangeListener}s and
* forwarding [EMAIL PROTECTED] PropertyChangeEvent}s to those listeners.
- *
+ *
+ * As of JDK1.5 this class is no longer in use. Use
+ * [EMAIL PROTECTED] PropertyChangeSupport} instead.
+ *
* @author Andrew Selkirk
*/
public final class SwingPropertyChangeSupport
- extends PropertyChangeSupport
+ extends PropertyChangeSupport
{
private static final long serialVersionUID = 7162625831330845068L;
/**
- * Storage for the listeners that are not linked to a specific property.
- */
- private transient EventListenerList listeners;
-
- /**
- * Storage for the listeners that are linked (by name) to a specific property.
- * The hash table maps <code>String</code> objects (the property names) to
- * [EMAIL PROTECTED] EventListenerList} instances (which record the listener(s) for the
- * given property).
- */
- private HashMap propertyListeners;
-
- /**
- * The object that is used as the default source for the
- * [EMAIL PROTECTED] PropertyChangeEvent}s generated by this class.
- */
- private Object source;
-
- /**
* Creates a new instance.
*
* @param source the source (<code>null</code> not permitted).
@@ -90,247 +66,5 @@
public SwingPropertyChangeSupport(Object source)
{
super(source);
- this.source = source;
- this.listeners = new EventListenerList();
- this.propertyListeners = new HashMap();
}
-
- /**
- * Registers <code>listener</code> to receive notification of any future
- * [EMAIL PROTECTED] PropertyChangeEvent}s generated by this instance.
- *
- * @param listener the listener (<code>null</code> is ignored).
- *
- * @see #removePropertyChangeListener(PropertyChangeListener)
- */
- public synchronized void addPropertyChangeListener(PropertyChangeListener
- listener)
- {
- listeners.add(PropertyChangeListener.class, listener);
- }
-
- /**
- * Registers <code>listener</code> to receive notification of any future
- * [EMAIL PROTECTED] PropertyChangeEvent}s generated by this instance for the named
- * property.
- *
- * @param propertyName the property name.
- * @param listener the listener.
- *
- * @see #removePropertyChangeListener(String, PropertyChangeListener)
- */
- public synchronized void addPropertyChangeListener(String propertyName,
- PropertyChangeListener listener)
- {
- EventListenerList list;
- list = (EventListenerList) propertyListeners.get(propertyName);
- if (list == null)
- {
- list = new EventListenerList();
- propertyListeners.put(propertyName, list);
- }
- list.add(PropertyChangeListener.class, listener);
- }
-
- /**
- * Removes <code>listener</code> from the list of registered listeners, so
- * that it will no longer receive notification of property change events.
- *
- * @param listener the listener to remove.
- */
- public synchronized void removePropertyChangeListener(PropertyChangeListener
- listener)
- {
- listeners.remove(PropertyChangeListener.class, listener);
- }
-
- /**
- * Removes <code>listener</code> from the list of registered listeners for
- * the named property, so that it will no longer receive notification of
- * property change events.
- *
- * @param propertyName the property name.
- * @param listener the listener to remove.
- */
- public synchronized void removePropertyChangeListener(String propertyName,
- PropertyChangeListener listener)
- {
- EventListenerList list;
- list = (EventListenerList) propertyListeners.get(propertyName);
- if (list == null)
- return;
- list.remove(PropertyChangeListener.class, listener);
- if (list.getListenerCount() == 0)
- {
- propertyListeners.remove(propertyName);
- }
- }
-
- /**
- * Returns an array of the [EMAIL PROTECTED] PropertyChangeListener}s registered with
- * this <code>SwingPropertyChangeSupport</code> instance.
- *
- * @return The array of listeners.
- *
- * @since 1.4
- */
- public synchronized PropertyChangeListener[] getPropertyChangeListeners()
- {
- // fetch the named listeners first so we know how many there are
- List namedListeners = new ArrayList();
- Set namedListenerEntries = propertyListeners.entrySet();
- Iterator iterator = namedListenerEntries.iterator();
- while (iterator.hasNext())
- {
- Map.Entry e = (Map.Entry) iterator.next();
- String propertyName = (String) e.getKey();
- EventListenerList ell = (EventListenerList) e.getValue();
- if (ell != null)
- {
- Object[] list = ell.getListenerList();
- for (int i = 0; i < list.length; i += 2)
- {
- namedListeners.add(new PropertyChangeListenerProxy(propertyName,
- (PropertyChangeListener) list[i + 1]));
- }
- }
- }
-
- // create an array that can hold everything
- int size = listeners.getListenerCount() + namedListeners.size();
- PropertyChangeListener[] result = new PropertyChangeListener[size];
-
- // copy in the general listeners
- Object[] list = listeners.getListenerList();
- int index = 0;
- for (int i = 0; i < list.length; i += 2)
- result[index++] = (PropertyChangeListener) list[i + 1];
-
- // ...and the named listeners
- Iterator iterator2 = namedListeners.iterator();
- while (iterator2.hasNext())
- result[index++] = (PropertyChangeListenerProxy) iterator2.next();
-
- return result;
- }
-
- /**
- * Returns an array of all listeners that are registered to receive
- * notification of changes to the named property. This includes the general
- * listeners as well as those registered specifically for the named
- * property.
- *
- * @param propertyName the property name.
- *
- * @return An array of all listeners for the named property.
- */
- public synchronized PropertyChangeListener[] getPropertyChangeListeners(
- String propertyName)
- {
- EventListenerList list
- = (EventListenerList) propertyListeners.get(propertyName);
- if (list == null)
- return getPropertyChangeListeners();
- int size = listeners.getListenerCount() + list.getListenerCount();
- PropertyChangeListener[] result = new PropertyChangeListener[size];
-
- // copy in the general listeners
- int index = 0;
- for (int i = 0; i < listeners.listenerList.length; i += 2)
- {
- result[index++]
- = (PropertyChangeListener) listeners.listenerList[i + 1];
- }
-
- // copy in the specific listeners
- Object[] specificListeners = list.getListenerList();
- for (int i = 0; i < specificListeners.length; i += 2)
- {
- result[index++] = (PropertyChangeListener) specificListeners[i + 1];
- }
- return result;
- }
-
- /**
- * Creates a new [EMAIL PROTECTED] PropertyChangeEvent} using the given arguments (and
- * the default <code>source</code> for this
- * <code>SwingPropertyChangeSupport</code> instance) and forwards it to all
- * registered listeners via the
- * [EMAIL PROTECTED] PropertyChangeListener#propertyChange(PropertyChangeEvent)} method.
- * <p>
- * Note that if <code>oldValue</code> and <code>newValue</code> are non-null
- * and equal, no listeners will be notified.
- *
- * @param propertyName the property name.
- * @param oldValue the old value
- * @param newValue the new value.
- */
- public void firePropertyChange(String propertyName, Object oldValue,
- Object newValue)
- {
- PropertyChangeEvent event;
- event = new PropertyChangeEvent(source, propertyName, oldValue, newValue);
- firePropertyChange(event);
- }
-
- /**
- * Forwards <code>event</code> to registered listeners.
- * <p>
- * Note that if the event's <code>getOldValue()</code> and
- * <code>getNewValue()</code> methods return non-null and equal values, no
- * listeners will be notified.
- *
- * @param event the event.
- */
- public void firePropertyChange(PropertyChangeEvent event)
- {
- EventListenerList list;
- EventListener[] listenerList;
- int index;
- PropertyChangeListener listener;
-
- // if the old and new values are non-null and equal, don't notify listeners
- if (event.getOldValue() != null && event.getNewValue() != null &&
- event.getOldValue().equals(event.getNewValue()))
- return;
-
- // Process Main Listener List
- listenerList = listeners.getListeners(PropertyChangeListener.class);
- for (index = 0; index < listenerList.length; index++)
- {
- listener = (PropertyChangeListener) listenerList[index];
- listener.propertyChange(event);
- }
-
- // Process Property Listener List
- list = (EventListenerList) propertyListeners.get(event.getPropertyName());
- if (list != null)
- {
- listenerList = list.getListeners(PropertyChangeListener.class);
- for (index = 0; index < listenerList.length; index++)
- {
- listener = (PropertyChangeListener) listenerList[index];
- listener.propertyChange(event);
- }
- }
-
- }
-
- /**
- * Tell whether the specified property is being listened on or not. This
- * will only return <code>true</code> if there are listeners on all
- * properties or if there is a listener specifically on this property.
- *
- * @param propertyName the property that may be listened on
- * @return whether the property is being listened on
- * @throws NullPointerException if propertyName is null
- */
- public synchronized boolean hasListeners(String propertyName)
- {
- if (listeners.getListenerCount() > 0)
- return true;
- else
- return (propertyListeners.get(propertyName) != null);
- }
-
}
