Package org.axonframework.messaging.eventhandling

Interface EventHandlingExceptionHandler

All Superinterfaces:

MessageHandlingExceptionHandler<EventMessage>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface EventHandlingExceptionHandler
extends MessageHandlingExceptionHandler<EventMessage>

Handles exceptions thrown by an EventHandler within an EventHandlingComponent.

Return MessageStream.empty() to suppress the exception — event processing continues as if no error occurred. Return MessageStream.failed(Throwable) (with the same or a different exception) to let the error propagate to the event processor.

Register via EventHandlingComponentsConfigurer.CompletePhase.withExceptionHandler(org.axonframework.common.configuration.ComponentBuilder).

Since:

5.2.0

Author:

Allard Buijze

Method Summary

Modifier and Type	Method	Description
MessageStream.Empty<Message>	handle(EventMessage event, ProcessingContext context, Throwable error)	Called when an event handler throws an exception.

Method Details

handle

MessageStream.Empty<Message> handle(EventMessage event,
 ProcessingContext context,
 Throwable error)

Called when an event handler throws an exception.

Specified by:

handle in interface MessageHandlingExceptionHandler<EventMessage>

Parameters:

event - the event being handled when the exception occurred

context - the active processing context

error - the exception thrown by the event handler

Returns:

MessageStream.empty() to suppress the error, or MessageStream.failed(Throwable) to propagate it