org.axonframework.commandhandling.callbacks

Class NoOpCallback

java.lang.Object

org.axonframework.commandhandling.callbacks.NoOpCallback

All Implemented Interfaces:

CommandCallback<Object,Object>

public final class NoOpCallback
extends Object
implements CommandCallback<Object,Object>

Callback that does absolutely nothing when invoked. For performance reasons, an instance of this callback can be obtained using NoOpCallback.INSTANCE. A generics-compatible alternative is provided by NoOpCallback.<C>instance().

Since:

0.6

Author:

Allard Buijze

Field Summary

Fields

Modifier and Type	Field and Description
static NoOpCallback	INSTANCE A statically available instance of the NoOpCallback.

Constructor Summary

Constructors

Constructor and Description
NoOpCallback()

Method Summary

Modifier and Type	Method and Description
void	onFailure(CommandMessage<?> commandMessage, Throwable cause) Invoked when command handling execution resulted in an error.
void	onSuccess(CommandMessage<?> commandMessage, Object result) Invoked when command handling execution was successful.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final NoOpCallback INSTANCE

A statically available instance of the NoOpCallback. Provided for performance reasons.

Constructor Detail

NoOpCallback

public NoOpCallback()

Method Detail

onSuccess

public void onSuccess(CommandMessage<?> commandMessage,
                      Object result)

Invoked when command handling execution was successful.

This implementation does nothing.

Specified by:

onSuccess in interface CommandCallback<Object,Object>

Parameters:

commandMessage - The message that was dispatched

result - The result of the command handling execution, if any.

onFailure

public void onFailure(CommandMessage<?> commandMessage,
                      Throwable cause)

Invoked when command handling execution resulted in an error.

This implementation does nothing.

Specified by:

onFailure in interface CommandCallback<Object,Object>

Parameters:

commandMessage - The message that was dispatched

cause - The exception raised during command handling