T
- the type of EventListener
being wrappedEventListener
AWTEventListenerProxy
, PropertyChangeListenerProxy
, VetoableChangeListenerProxy
public abstract class EventListenerProxy<T extends EventListener> extends Object implements EventListener
EventListener
class which associates a set of additional parameters with the listener. Subclasses must provide the storage and accessor methods for the additional arguments or parameters. For example, a bean which supports named properties would have a two argument method signature for adding a PropertyChangeListener
for a property:
public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener)If the bean also implemented the zero argument get listener method:
public PropertyChangeListener[] getPropertyChangeListeners()then the array may contain inner
PropertyChangeListeners
which are also PropertyChangeListenerProxy
objects. If the calling method is interested in retrieving the named property then it would have to test the element to see if it is a proxy class.
Constructor | Description |
---|---|
EventListenerProxy |
Creates a proxy for the specified listener. |
Modifier and Type | Method | Description |
---|---|---|
T |
getListener() |
Returns the listener associated with the proxy. |
public EventListenerProxy(T listener)
listener
- the listener objectpublic T getListener()
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/EventListenerProxy.html