PropertyChangeListenerProxy (Java Platform SE 8 )
Keywords: java.beans.PropertyChangeListenerProxy class
Date: 2026-01-21

java.beans

## Class PropertyChangeListenerProxy

- java.lang.Object
- - java.util.EventListenerProxy<PropertyChangeListener>
  - - java.beans.PropertyChangeListenerProxy

- All Implemented Interfaces:
    PropertyChangeListener, EventListener

      public class PropertyChangeListenerProxy
      extends EventListenerProxy<PropertyChangeListener>
      implements PropertyChangeListener

  A class which extends the `EventListenerProxy` specifically for adding a `PropertyChangeListener` with a "bound" property. Instances of this class can be added as `PropertyChangeListener`s to a bean which supports firing property change events.

  If the object has a `getPropertyChangeListeners` method then the array returned could be a mixture of `PropertyChangeListener` and `PropertyChangeListenerProxy` objects.

  Since:
    1.4
  See Also:
    `EventListenerProxy`, `PropertyChangeSupport.getPropertyChangeListeners()`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `PropertyChangeListenerProxy(String propertyName, PropertyChangeListener listener)` Constructor which binds the `PropertyChangeListener` to a specific property.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getPropertyName()` Returns the name of the named property associated with the listener.
    `void` | `propertyChange(PropertyChangeEvent event)` Forwards the property change event to the listener delegate.

    - ### Methods inherited from class java.util.EventListenerProxy

      `getListener`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### PropertyChangeListenerProxy

          public PropertyChangeListenerProxy(String propertyName,
                                             PropertyChangeListener listener)

      Constructor which binds the `PropertyChangeListener` to a specific property.
      Parameters:
        `propertyName` - the name of the property to listen on
        `listener` - the listener object

  - ### Method Detail

    - #### propertyChange

          public void propertyChange(PropertyChangeEvent event)

      Forwards the property change event to the listener delegate.
      Specified by:
        `propertyChange` in interface `PropertyChangeListener`
      Parameters:
        `event` - the property change event

    - #### getPropertyName

          public String getPropertyName()

      Returns the name of the named property associated with the listener.
      Returns:
        the name of the named property associated with the listener

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