Class NotificationEventCallback
java.lang.Object
org.apache.tapestry5.internal.util.NotificationEventCallback
- All Implemented Interfaces:
ComponentEventCallback
A
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.-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
handleResult
(Object result) Invoked to handle a non-null event handler method result.
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Constructor Details
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NotificationEventCallback
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Method Details
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handleResult
Description copied from interface:ComponentEventCallback
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, thenEvent.isAborted()
will return true.- Specified by:
handleResult
in interfaceComponentEventCallback
- Parameters:
result
- the result value returned from the event handler method- Returns:
- true if the event is aborted, false if the event may continue
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