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Java Source Code / Java Documentation » Swing Library » wings3 » org.wings.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.wings.util.WeakPropertyChangeSupport

WeakPropertyChangeSupport
public class WeakPropertyChangeSupport implements Serializable(Code)
This is a utility class that can be used by beans that support bound properties. You can use an instance of this class as a member field of your bean and delegate various work to it.

This class is serializable. When it is serialized it will save (and restore) any listeners that are themselves serializable. Any non-serializable listeners will be skipped during serialization.
author:
   Holger Engels




Constructor Summary
public  WeakPropertyChangeSupport(Object sourceBean)
     Constructs a WeakPropertyChangeSupport object.

Method Summary
public synchronized  voidaddPropertyChangeListener(PropertyChangeListener listener)
     Add a PropertyChangeListener to the listener list.
public synchronized  voidaddPropertyChangeListener(String propertyName, PropertyChangeListener listener)
     Add a PropertyChangeListener for a specific property.
public  voidfirePropertyChange(String propertyName, Object oldValue, Object newValue)
     Report a bound property update to any registered listeners.
public  voidfirePropertyChange(String propertyName, int oldValue, int newValue)
     Report an int bound property update to any registered listeners.
public  voidfirePropertyChange(String propertyName, boolean oldValue, boolean newValue)
     Report a boolean bound property update to any registered listeners.
public  voidfirePropertyChange(PropertyChangeEvent evt)
     Fire an existing PropertyChangeEvent to any registered listeners.
public synchronized  booleanhasListeners(String propertyName)
     Check if there are any listeners for a specific property.
Parameters:
  propertyName - the property name.
public synchronized  voidremovePropertyChangeListener(PropertyChangeListener listener)
     Remove a PropertyChangeListener from the listener list.
public synchronized  voidremovePropertyChangeListener(String propertyName, PropertyChangeListener listener)
     Remove a PropertyChangeListener for a specific property.


Constructor Detail
WeakPropertyChangeSupport
public WeakPropertyChangeSupport(Object sourceBean)(Code)
Constructs a WeakPropertyChangeSupport object.
Parameters:
  sourceBean - The bean to be given as the source for any events.




Method Detail
addPropertyChangeListener
public synchronized void addPropertyChangeListener(PropertyChangeListener listener)(Code)
Add a PropertyChangeListener to the listener list. The listener is registered for all properties.
Parameters:
  listener - The PropertyChangeListener to be added



addPropertyChangeListener
public synchronized void addPropertyChangeListener(String propertyName, PropertyChangeListener listener)(Code)
Add a PropertyChangeListener for a specific property. The listener will be invoked only when a call on firePropertyChange names that specific property.
Parameters:
  propertyName - The name of the property to listen on.
Parameters:
  listener - The PropertyChangeListener to be added



firePropertyChange
public void firePropertyChange(String propertyName, Object oldValue, Object newValue)(Code)
Report a bound property update to any registered listeners. No event is fired if old and new are equal and non-null.
Parameters:
  propertyName - The programmatic name of the propertythat was changed.
Parameters:
  oldValue - The old value of the property.
Parameters:
  newValue - The new value of the property.



firePropertyChange
public void firePropertyChange(String propertyName, int oldValue, int newValue)(Code)
Report an int bound property update to any registered listeners. No event is fired if old and new are equal and non-null.

This is merely a convenience wrapper around the more general firePropertyChange method that takes Object values.
Parameters:
  propertyName - The programmatic name of the propertythat was changed.
Parameters:
  oldValue - The old value of the property.
Parameters:
  newValue - The new value of the property.




firePropertyChange
public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue)(Code)
Report a boolean bound property update to any registered listeners. No event is fired if old and new are equal and non-null.

This is merely a convenience wrapper around the more general firePropertyChange method that takes Object values.
Parameters:
  propertyName - The programmatic name of the propertythat was changed.
Parameters:
  oldValue - The old value of the property.
Parameters:
  newValue - The new value of the property.




firePropertyChange
public void firePropertyChange(PropertyChangeEvent evt)(Code)
Fire an existing PropertyChangeEvent to any registered listeners. No event is fired if the given event's old and new values are equal and non-null.
Parameters:
  evt - The PropertyChangeEvent object.



hasListeners
public synchronized boolean hasListeners(String propertyName)(Code)
Check if there are any listeners for a specific property.
Parameters:
  propertyName - the property name. true if there are ore or more listeners for the given property



removePropertyChangeListener
public synchronized void removePropertyChangeListener(PropertyChangeListener listener)(Code)
Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.
Parameters:
  listener - The PropertyChangeListener to be removed



removePropertyChangeListener
public synchronized void removePropertyChangeListener(String propertyName, PropertyChangeListener listener)(Code)
Remove a PropertyChangeListener for a specific property.
Parameters:
  propertyName - The name of the property that was listened on.
Parameters:
  listener - The PropertyChangeListener to be removed



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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