ch.elca.el4j.services.exceptionhandler.handler
Class SequenceExceptionHandler

java.lang.Object
  ch.elca.el4j.services.exceptionhandler.handler.AbstractExceptionHandler
      ch.elca.el4j.services.exceptionhandler.handler.SequenceExceptionHandler

All Implemented Interfaces:

ExceptionHandler

public class SequenceExceptionHandler
extends AbstractExceptionHandler

This class allows to specify a number of exception handlers that are called in sequence until the first succeeds, i.e. it doesn't throw an exception. In this case, it returns its result. If all exception handler fail, the last caught exception is thrown.

Author:

Andreas Bur (ABU)

File-location:

SequenceExceptionHandler

Last check-in date:

2009-08-04 15:35:01 +0200 (Di, 04. Aug 2009) by swismer for revision 3883

Constructor Summary

SequenceExceptionHandler()

Method Summary

protected Object	handleException(Throwable t, AbstractExceptionHandlerInterceptor exceptionInvoker, org.aopalliance.intercept.MethodInvocation invocation, org.slf4j.Logger logger) Handles the given throwable thrown by the method invocation.
void	setExceptionHandlers(ExceptionHandler[] exceptionHandlers) Sets the exception handlers.

Methods inherited from class ch.elca.el4j.services.exceptionhandler.handler.AbstractExceptionHandler

getInvocationDescription, handleException, setUseDynamicLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SequenceExceptionHandler

public SequenceExceptionHandler()

Method Detail

setExceptionHandlers

public void setExceptionHandlers(ExceptionHandler[] exceptionHandlers)

Sets the exception handlers.

Parameters:

exceptionHandlers - The exception handlers to set.

handleException

protected Object handleException(Throwable t,
                                 AbstractExceptionHandlerInterceptor exceptionInvoker,
                                 org.aopalliance.intercept.MethodInvocation invocation,
                                 org.slf4j.Logger logger)
                          throws Throwable

Handles the given throwable thrown by the method invocation. This method is called with the appropriate logger.

Specified by:

handleException in class AbstractExceptionHandler

Parameters:

t - The exception thrown in the method invocation.

exceptionInvoker - The exception invoker that called this exception handler.

invocation - The original method invocation.

logger - The logger to be used by subclasses.

Returns:

Returns an object that is treated as the original invocation's return value.

Throws:

Throwable - Any exception thrown by the handler.