java.util: abstract public class: EventListenerProxy

java.util
abstract public class: EventListenerProxy [javadoc | source]

java.lang.Object
   java.util.EventListenerProxy

All Implemented Interfaces:
EventListener

Direct Known Subclasses:
AWTEventListenerProxy, VetoableChangeListenerProxy, PropertyChangeListenerProxy

An abstract wrapper class for an {@code 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 {@code 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 {@code PropertyChangeListeners} which are also {@code 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.

since: 1.4 -

Constructor:

Constructor:
public EventListenerProxy(T listener) { this.listener = listener; } Creates a proxy for the specified listener. Parameters: `listener` - the listener object

 public EventListenerProxy(T listener) {
        this.listener = listener;
}

Creates a proxy for the specified listener.

Parameters:

listener - the listener object

Method from java.util.EventListenerProxy Summary:
getListener

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from java.util.EventListenerProxy Detail:
public T getListener() { return this.listener; } Returns the listener associated with the proxy.

Method from java.util.EventListenerProxy Detail:

 public T getListener() {
        return this.listener;
}

Returns the listener associated with the proxy.