- All Implemented Interfaces:
public class NotificationEventCallback
- extends Object
- implements ComponentEventCallback
ComponentEventCallback used for notification events. Event handler methods may return
true (to abort the event) or false (to allow the event to continue bubbling up), but all other values are forbidden.
Invoked to handle a non-null event handler method result.
|Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public NotificationEventCallback(String eventType,
public boolean handleResult(Object result)
- Description copied from interface:
- Invoked to handle a non-null event handler method result. The handler should determine whether the value is
acceptable, and throw an exception if not. Any thrown exception will be wrapped to identify the component and
method from which the value was returned.
Boolean values are not passed to the callback. Booleans are used to indicate that the event has been
handled (true, meaning the event is handled and aborted) or that a further search for handlers should continue
(false, meaning the event was not handled, is not aborted, and the search up the component hierarchy for event
handler methods should continue). If a component event method returns true, then
Event.isAborted() will return true.
- Specified by:
handleResult in interface
result - the result value returned from the event handler method
- true if the event is aborted, false if the event may continue
Copyright © 2003-2012 The Apache Software Foundation.