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

java.lang.Object
  ch.elca.el4j.services.exceptionhandler.handler.AbstractExceptionHandler
      ch.elca.el4j.services.exceptionhandler.handler.AbstractRetryExceptionHandler
          ch.elca.el4j.services.exceptionhandler.handler.AbstractReconfigureExceptionHandler

All Implemented Interfaces:

ExceptionHandler

public abstract class AbstractReconfigureExceptionHandler
extends AbstractRetryExceptionHandler

This class simplifies the implementation of exception handlers that use another implementation with the same semantic to fulfil the callers invocation. This is achieved by reconfiguring the class that is advised by this exception handler's interceptor.

Author:

Andreas Bur (ABU)

See Also:

AbstractSwappableTargetExceptionHandler

File-location:

AbstractReconfigureExceptionHandler

Last check-in date:

2009-08-04 13:59:45 +0200 (Di, 04. Aug 2009) by swismer for revision 3873

Constructor Summary

AbstractReconfigureExceptionHandler()

Method Summary

protected abstract void	reconfigure(Throwable t, org.aopalliance.intercept.MethodInvocation invocation, org.slf4j.Logger logger) Subclasses have to reconfigure the advised target.
protected Object	retry(Throwable t, AbstractExceptionHandlerInterceptor exceptionInvoker, org.aopalliance.intercept.MethodInvocation invocation, org.slf4j.Logger logger) Creates a new retry exception.

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

getRetries, handleException, setRetries

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

AbstractReconfigureExceptionHandler

public AbstractReconfigureExceptionHandler()

Method Detail

retry

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

Creates a new retry exception. Subclasses may also do some other tasks (e.g. waiting). This method is called only if the number of retires is not already exceeded.

Specified by:

retry in class AbstractRetryExceptionHandler

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 - Whenever something goes wrong.

reconfigure

protected abstract void reconfigure(Throwable t,
                                    org.aopalliance.intercept.MethodInvocation invocation,
                                    org.slf4j.Logger logger)

Subclasses have to reconfigure the advised target.

Parameters:

t - The exception that caused this strategy. Subclasses may distinguish between different exception types.

invocation - The original invocation that failed.

logger - The logger.