wt.events
Class KeyedEventListenerAdapter

java.lang.Object
  wt.events.KeyedEventListenerAdapter

All Implemented Interfaces:

KeyedEventListener

public class KeyedEventListenerAdapter
extends Object
implements KeyedEventListener

A do-nothing implementation of KeyedEventListener. Each method does nothing and designed to be overridden by derived classes. This allows classes derived from KeyedEventListener to be quickly created.

NOTE: it is preferable to extend this class (as opposed to simply implementing KeyedEventListener).

Supported API: true

Extendable: true

Method Summary

void	notifyEvent(Object eventObject) Notify the listener that a single-object event has occurred.
void	notifyMultiObjectEvent(Object eventObject) Notify the listener that a multi-object event has occurred.
void	notifyVetoableEvent(Object eventObject) Notify the listener that a single-object event has occurred.
void	notifyVetoableMultiObjectEvent(Object eventObject) Notify the listener that a multi-object event has occurred.

Methods inherited from class java.lang.Object

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

Method Detail

notifyEvent

public void notifyEvent(Object eventObject)

Notify the listener that a single-object event has occurred.

Supported API: true

Specified by:

notifyEvent in interface KeyedEventListener

Parameters:

eventObject -

notifyVetoableEvent

public void notifyVetoableEvent(Object eventObject)
                         throws Exception

Notify the listener that a single-object event has occurred. Sometimes the listener may object to the event by throwing an exception. Whether the exception will be honored depends on the object which generated the event.

Supported API: true

Specified by:

notifyVetoableEvent in interface KeyedEventListener

Parameters:

eventObject -

Throws:

Exception - the dispatcher and listener must agree on the exception type.

notifyMultiObjectEvent

public void notifyMultiObjectEvent(Object eventObject)

Notify the listener that a multi-object event has occurred.

Supported API: true

Specified by:

notifyMultiObjectEvent in interface KeyedEventListener

Parameters:

eventObject -

notifyVetoableMultiObjectEvent

public void notifyVetoableMultiObjectEvent(Object eventObject)
                                    throws Exception

Notify the listener that a multi-object event has occurred. Sometimes the listener may object to the event by throwing an exception. Whether the exception will be honored depends on the object which generated the event.

Supported API: true

Specified by:

notifyVetoableMultiObjectEvent in interface KeyedEventListener

Parameters:

eventObject -

Throws:

Exception - the dispatcher and listener must agree on the exception type.