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package javax.faces.context;
import javax.faces.
FacesException;
import javax.faces.
FacesWrapper;
import javax.faces.event.
AbortProcessingException;
import javax.faces.event.
ExceptionQueuedEvent;
import javax.faces.event.
SystemEvent;
/**
* <p>Provides a simple implementation of {@link ExceptionHandler} that can
* be subclassed by developers wishing to provide specialized behavior
* to an existing {@link ExceptionHandler} instance. The default
* implementation of all methods is to call through to the wrapped
* {@link ExceptionHandler} instance.</p>
*
* <p>Usage: extend this class and override {@link #getWrapped} to
* return the instance we are wrapping.</p>
*
* @since 2.0
*/
public abstract class
ExceptionHandlerWrapper extends
ExceptionHandler implements
FacesWrapper<
ExceptionHandler> {
// ----------------------------------------------- Methods from FacesWrapper
/**
* @return the wrapped {@link ExceptionHandler} instance
* @see javax.faces.FacesWrapper#getWrapped()
*/
@
Override
public abstract
ExceptionHandler getWrapped();
// ------------------------------------------- Methods from ExceptionHandler
/**
* <p>The default behavior of this method is to
* call {@link ExceptionHandler#getHandledExceptionQueuedEvent()}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see ExceptionHandler#getHandledExceptionQueuedEvent()
*/
@
Override
public
ExceptionQueuedEvent getHandledExceptionQueuedEvent() {
return
getWrapped().
getHandledExceptionQueuedEvent();
}
/**
* <p>The default behavior of this method is to
* call {@link javax.faces.context.ExceptionHandler#handle()}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see javax.faces.context.ExceptionHandler#handle()
*/
@
Override
public void
handle() throws
FacesException {
getWrapped().
handle();
}
/**
* <p>The default behavior of this method is to
* call {@link javax.faces.context.ExceptionHandler#isListenerForSource(Object)}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see javax.faces.context.ExceptionHandler#isListenerForSource(Object) ()
*/
@
Override
public boolean
isListenerForSource(
Object source) {
return
getWrapped().
isListenerForSource(
source);
}
/**
* <p>The default behavior of this method is to
* call {@link javax.faces.context.ExceptionHandler#processEvent(javax.faces.event.SystemEvent)}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see javax.faces.context.ExceptionHandler#processEvent(javax.faces.event.SystemEvent)
*/
@
Override
public void
processEvent(
SystemEvent event) throws
AbortProcessingException {
getWrapped().
processEvent(
event);
}
/**
* <p>The default behavior of this method is to
* call {@link javax.faces.context.ExceptionHandler#getRootCause(Throwable)}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see javax.faces.context.ExceptionHandler#getRootCause(Throwable)
*/
@
Override
public
Throwable getRootCause(
Throwable t) {
return
getWrapped().
getRootCause(
t);
}
/**
* <p>The default behavior of this method is to call
* {@link ExceptionHandler#getHandledExceptionQueuedEvents()} on the wrapped
* {@link ExceptionHandler} object.</p>
*
* @see ExceptionHandler#getHandledExceptionQueuedEvents()
*/
@
Override
public
Iterable<
ExceptionQueuedEvent>
getHandledExceptionQueuedEvents() {
return
getWrapped().
getHandledExceptionQueuedEvents();
}
/**
* <p>The default behavior of this method is to
* call {@link ExceptionHandler#getUnhandledExceptionQueuedEvents()}
* on the wrapped {@link ExceptionHandler} object.</p>
*
* @see ExceptionHandler#getUnhandledExceptionQueuedEvents()
*/
@
Override
public
Iterable<
ExceptionQueuedEvent>
getUnhandledExceptionQueuedEvents() {
return
getWrapped().
getUnhandledExceptionQueuedEvents();
}
}