org.axonframework.eventhandling.async
Class DefaultErrorHandler

java.lang.Object
  org.axonframework.eventhandling.async.DefaultErrorHandler

All Implemented Interfaces:

ErrorHandler

public class DefaultErrorHandler
extends Object
implements ErrorHandler

An ErrorHandler implementation that returns a fixed RetryPolicy instance when an error occurs.

Since:

2.0

Author:

Allard Buijze

Constructor Summary

DefaultErrorHandler(RetryPolicy retryPolicy)
Initializes the ErrorHandler, making it return the given retryPolicy when an error occurs.

Method Summary

RetryPolicy

handleError(Throwable exception, EventMessage<?> eventMessage, EventListener eventListener) Invoked when a handler or the unit of work throws an exception.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultErrorHandler

public DefaultErrorHandler(RetryPolicy retryPolicy)

Initializes the ErrorHandler, making it return the given retryPolicy when an error occurs.

Parameters:

retryPolicy - the policy to return on errors

Method Detail

handleError

public RetryPolicy handleError(Throwable exception,
                               EventMessage<?> eventMessage,
                               EventListener eventListener)

Description copied from interface: ErrorHandler

Invoked when a handler or the unit of work throws an exception. The returned RetryPolicy tells the Event Processor what to do to resolve the issue (commit or rollback Unit of Work, reschedule or skip the Event).

The Error Handler may invoke the given eventListener with the given eventMessage to attempt to resolve the issue. Do note that the returned policy reflects this, to prevent duplicate invocation of the listener.

The Error Handler should not throw exceptions.

Specified by:

handleError in interface ErrorHandler

Parameters:

exception - The exception thrown by the handler (or unit of work)

eventMessage - The message being processed

eventListener - The listener throwing the exception, or null if an error occurred in the Unit of Work

Returns:

the policy the Event Processor should apply to resolve the issue