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## org.apache.muse.ws.resource.properties.listeners
Interface PropertyChangeListener

All Known Implementing Classes:
  ChangeNotificationListener, MetricUpdateListener

public interface PropertyChangeListener

PropertyChangeListener describes a type of property listener that is invoked after a property change has occurred (through the WS-RP SetResourceProperties operation). Listeners can react to or report the change from the propertyChanged() method. If you want to prevent changes, you should use a PropertyChangeApprover.

Author:
  Dan Jemiolo (danj)

Method Summary
`QName` | `getPropertyName()`
`void` | `propertyChanged(org.w3c.dom.Element oldValue, org.w3c.dom.Element newValue)` Receives the old and new value of the property after it has been changed; there are no requirements on the actions taken in response to a property change.

Method Detail

### getPropertyName

    public QName getPropertyName()

  Returns:
    The QName of the property to monitor.

### propertyChanged

    public void propertyChanged(org.w3c.dom.Element oldValue,
                                org.w3c.dom.Element newValue)
                         throws BaseFault

  Receives the old and new value of the property after it has been changed; there are no requirements on the actions taken in response to a property change.

  Parameters:
    `oldValue` - A copy of the property instance before it was changed.
    `newValue` - The current value of the property instance.
  Throws:
    `BaseFault` -
    - If the change reaction fails for any reason.

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