ExceptionHandlerWrapper (Java(TM) EE 8 Specification APIs)

java.lang.Object
- javax.faces.context.ExceptionHandler
- - javax.faces.context.ExceptionHandlerWrapper

All Implemented Interfaces:

EventListener, FacesListener, SystemEventListener, FacesWrapper<ExceptionHandler>
```
public abstract class ExceptionHandlerWrapper
extends ExceptionHandler
implements FacesWrapper<ExceptionHandler>
```
Provides a simple implementation of ExceptionHandler that can be subclassed by developers wishing to provide specialized behavior to an existing ExceptionHandler instance. The default implementation of all methods is to call through to the wrapped ExceptionHandler instance.

Usage: extend this class and push the implementation being wrapped to the constructor and use getWrapped() to access the instance being wrapped.

Since:

2.0

Constructor Summary

Constructors
Constructor and Description
`ExceptionHandlerWrapper()` Deprecated. Use the other constructor taking the implementation being wrapped.
`ExceptionHandlerWrapper(ExceptionHandler wrapped)` If this exception handler has been decorated, the implementation doing the decorating should push the implementation being wrapped to this constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ExceptionQueuedEvent`	`getHandledExceptionQueuedEvent()` The default behavior of this method is to call `ExceptionHandler.getHandledExceptionQueuedEvent()` on the wrapped `ExceptionHandler` object.
`Iterable<ExceptionQueuedEvent>`	`getHandledExceptionQueuedEvents()` The default behavior of this method is to call `ExceptionHandler.getHandledExceptionQueuedEvents()` on the wrapped `ExceptionHandler` object.
`Throwable`	`getRootCause(Throwable t)` The default behavior of this method is to call `ExceptionHandler.getRootCause(Throwable)` on the wrapped `ExceptionHandler` object.
`Iterable<ExceptionQueuedEvent>`	`getUnhandledExceptionQueuedEvents()` The default behavior of this method is to call `ExceptionHandler.getUnhandledExceptionQueuedEvents()` on the wrapped `ExceptionHandler` object.
`ExceptionHandler`	`getWrapped()` A class that implements this interface uses this method to return an instance of the class being wrapped.
`void`	`handle()` The default behavior of this method is to call `ExceptionHandler.handle()` on the wrapped `ExceptionHandler` object.
`boolean`	`isListenerForSource(Object source)` The default behavior of this method is to call `ExceptionHandler.isListenerForSource(Object)` on the wrapped `ExceptionHandler` object.
`void`	`processEvent(SystemEvent event)` The default behavior of this method is to call `ExceptionHandler.processEvent(javax.faces.event.SystemEvent)` on the wrapped `ExceptionHandler` object.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ExceptionHandlerWrapper
```
@Deprecated
public ExceptionHandlerWrapper()
```
    Deprecated. Use the other constructor taking the implementation being wrapped.
  - ExceptionHandlerWrapper
```
public ExceptionHandlerWrapper(ExceptionHandler wrapped)
```
    If this exception handler has been decorated, the implementation doing the decorating should push the implementation being wrapped to this constructor. The getWrapped() will then return the implementation being wrapped.
    
    Parameters:
    
    wrapped - The implementation being wrapped.
    
    Since:
    
    2.3
- Method Detail
  - getWrapped
```
public ExceptionHandler getWrapped()
```
    Description copied from interface: FacesWrapper
    
    A class that implements this interface uses this method to return an instance of the class being wrapped.
    
    Specified by:
    
    getWrapped in interface FacesWrapper<ExceptionHandler>
    
    Returns:
    
    the wrapped instance.
  - getHandledExceptionQueuedEvent
```
public ExceptionQueuedEvent getHandledExceptionQueuedEvent()
```
    The default behavior of this method is to call ExceptionHandler.getHandledExceptionQueuedEvent() on the wrapped ExceptionHandler object.
    
    Specified by:
    
    getHandledExceptionQueuedEvent in class ExceptionHandler
    
    Returns:
    
    instance of ExceptionQueuedEvent.
    
    See Also:
    
    ExceptionHandler.getHandledExceptionQueuedEvent()
  - handle
```
public void handle()
            throws FacesException
```
    The default behavior of this method is to call ExceptionHandler.handle() on the wrapped ExceptionHandler object.
    
    Specified by:
    
    handle in class ExceptionHandler
    
    Throws:
    
    FacesException - if and only if a problem occurs while performing the algorithm to handle the Exception, not as a means of conveying a handled Exception itself.
    
    See Also:
    
    ExceptionHandler.handle()
  - isListenerForSource
```
public boolean isListenerForSource(Object source)
```
    The default behavior of this method is to call ExceptionHandler.isListenerForSource(Object) on the wrapped ExceptionHandler object.
    
    Specified by:
    
    isListenerForSource in interface SystemEventListener
    
    Specified by:
    
    isListenerForSource in class ExceptionHandler
    
    Parameters:
    
    source - the source that is inquiring about the appropriateness of sending an event to this listener instance.
    
    Returns:
    
    the value as specified above
    
    See Also:
    
    ()
  - processEvent
```
public void processEvent(SystemEvent event)
                  throws AbortProcessingException
```
    The default behavior of this method is to call ExceptionHandler.processEvent(javax.faces.event.SystemEvent) on the wrapped ExceptionHandler object.
    
    Specified by:
    
    processEvent in interface SystemEventListener
    
    Specified by:
    
    processEvent in class ExceptionHandler
    
    Parameters:
    
    event - the SystemEvent instance that is being processed.
    
    Throws:
    
    AbortProcessingException - if lifecycle processing should cease for this request.
    
    See Also:
    
    ExceptionHandler.processEvent(javax.faces.event.SystemEvent)
  - getRootCause
```
public Throwable getRootCause(Throwable t)
```
    The default behavior of this method is to call ExceptionHandler.getRootCause(Throwable) on the wrapped ExceptionHandler object.
    
    Specified by:
    
    getRootCause in class ExceptionHandler
    
    Parameters:
    
    t - passed-in wrapped Throwable.
    
    Returns:
    
    unwrapped object.
    
    See Also:
    
    ExceptionHandler.getRootCause(Throwable)
  - getHandledExceptionQueuedEvents
```
public Iterable<ExceptionQueuedEvent> getHandledExceptionQueuedEvents()
```
    The default behavior of this method is to call ExceptionHandler.getHandledExceptionQueuedEvents() on the wrapped ExceptionHandler object.
    
    Specified by:
    
    getHandledExceptionQueuedEvents in class ExceptionHandler
    
    Returns:
    
    an Iterable over all ExceptionQueuedEvents.
    
    See Also:
    
    ExceptionHandler.getHandledExceptionQueuedEvents()
  - getUnhandledExceptionQueuedEvents
```
public Iterable<ExceptionQueuedEvent> getUnhandledExceptionQueuedEvents()
```
    The default behavior of this method is to call ExceptionHandler.getUnhandledExceptionQueuedEvents() on the wrapped ExceptionHandler object.
    
    Specified by:
    
    getUnhandledExceptionQueuedEvents in class ExceptionHandler
    
    Returns:
    
    the unhandled set of ExceptionQueuedEvents.
    
    See Also:
    
    ExceptionHandler.getUnhandledExceptionQueuedEvents()

Class ExceptionHandlerWrapper

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ExceptionHandlerWrapper

ExceptionHandlerWrapper

Method Detail

getWrapped

getHandledExceptionQueuedEvent

handle

isListenerForSource

processEvent

getRootCause

getHandledExceptionQueuedEvents

getUnhandledExceptionQueuedEvents