org.axonframework.eventhandling

Enum ThrowingListenerErrorHandler

java.lang.Object

java.lang.Enum<ThrowingListenerErrorHandler>

org.axonframework.eventhandling.ThrowingListenerErrorHandler

All Implemented Interfaces:

Serializable, Comparable<ThrowingListenerErrorHandler>, ListenerInvocationErrorHandler

public enum ThrowingListenerErrorHandler
extends Enum<ThrowingListenerErrorHandler>
implements ListenerInvocationErrorHandler

Implementation that simply throws the reported exception.

Author:

Rene de Waele

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE Singleton error handler instance that throws exceptions without modification

Method Summary

Modifier and Type	Method and Description
void	onError(Exception exception, EventMessage<?> event, EventListener eventListener) Invoked after given eventListener failed to handle given event.
static ThrowingListenerErrorHandler	valueOf(String name) Returns the enum constant of this type with the specified name.
static ThrowingListenerErrorHandler[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final ThrowingListenerErrorHandler INSTANCE

Singleton error handler instance that throws exceptions without modification

Method Detail

values

public static ThrowingListenerErrorHandler[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ThrowingListenerErrorHandler c : ThrowingListenerErrorHandler.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ThrowingListenerErrorHandler valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

onError

public void onError(Exception exception,
                    EventMessage<?> event,
                    EventListener eventListener)
             throws Exception

Description copied from interface: ListenerInvocationErrorHandler

Invoked after given eventListener failed to handle given event. Implementations have a choice of options for how to continue:

• To ignore this error no special action is required. Processing will continue for this and subsequent events.
• To retry processing the event, implementations can re-invoke EventListener.handle(EventMessage) on the eventListener once or multiple times.
• To terminate event handling altogether and stop propagating the event to other listeners implementations may throw an exception.

Specified by:

onError in interface ListenerInvocationErrorHandler

Parameters:

exception - The exception thrown by the given eventListener

event - The event that triggered the exception

eventListener - The listener that failed to handle given event

Throws:

Exception - To stop further handling of the event