org.apache.tapestry5.internal.util
Class CaptureResultCallback<T>

java.lang.Object
  org.apache.tapestry5.internal.util.CaptureResultCallback<T>

All Implemented Interfaces:

ComponentEventCallback<T>

public class CaptureResultCallback<T>
extends Object
implements ComponentEventCallback<T>

Implementation of ComponentEventCallback that simply captures the result value.

Since:

5.2.0

Constructor Summary

CaptureResultCallback()

Method Summary

static <T> CaptureResultCallback<T>	create()
T	getResult()
boolean	handleResult(T result) 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

Constructor Detail

CaptureResultCallback

public CaptureResultCallback()

Method Detail

handleResult

public boolean handleResult(T result)

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, then Event.isAborted() will return true.

Specified by:

handleResult in interface ComponentEventCallback<T>

Parameters:

result - the result value returned from the event handler method

Returns:

true if the event is aborted, false if the event may continue

getResult

public T getResult()

create

public static <T> CaptureResultCallback<T> create()