org.axonframework.eventhandling.annotation
Class AnnotationEventListenerBeanPostProcessor

java.lang.Object
  org.axonframework.util.AbstractAnnotationHandlerBeanPostProcessor
      org.axonframework.eventhandling.annotation.AnnotationEventListenerBeanPostProcessor

All Implemented Interfaces:

org.springframework.beans.factory.config.BeanPostProcessor, org.springframework.beans.factory.config.DestructionAwareBeanPostProcessor, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware

public class AnnotationEventListenerBeanPostProcessor
extends AbstractAnnotationHandlerBeanPostProcessor

Spring Bean post processor that automatically generates an adapter for each bean containing EventHandler annotated methods.

Since:

0.3

Author:

Allard Buijze

Constructor Summary

AnnotationEventListenerBeanPostProcessor()

Method Summary

void	afterPropertiesSet()
protected Class<?>	getAdapterInterface() Returns the interface that the adapter implements to connect the annotated method to the actual interface definition.
protected AnnotationEventListenerAdapter	initializeAdapterFor(Object bean) Create an AnnotationEventListenerAdapter instance of the given bean.
protected boolean	isPostProcessingCandidate(Class<?> targetClass) Indicates whether an object of the given targetClass should be post processed.
void	setEventBus(EventBus eventBus) Sets the event bus to which detected event listeners should be subscribed.
void	setExecutor(Executor executor) Sets the Executor to use when the AnnotationEventListenerBeanPostProcessor encounters event listeners with the AsynchronousEventListener annotation.

Methods inherited from class org.axonframework.util.AbstractAnnotationHandlerBeanPostProcessor

getApplicationContext, postProcessAfterInitialization, postProcessBeforeDestruction, postProcessBeforeInitialization, setApplicationContext

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationEventListenerBeanPostProcessor

public AnnotationEventListenerBeanPostProcessor()

Method Detail

getAdapterInterface

protected Class<?> getAdapterInterface()

Description copied from class: AbstractAnnotationHandlerBeanPostProcessor

Returns the interface that the adapter implements to connect the annotated method to the actual interface definition. Calls to methods declared on this interface are passed to the adapter, while other method calls will be forwarded to the annotated object itself.

Note: this *must* be an interface. It may not be an (abstract) class.

Specified by:

getAdapterInterface in class AbstractAnnotationHandlerBeanPostProcessor

Returns:

the interface that the adapter implements to connect the annotated method to the actual interface definition

initializeAdapterFor

protected AnnotationEventListenerAdapter initializeAdapterFor(Object bean)

Create an AnnotationEventListenerAdapter instance of the given bean. This adapter will receive all event handler calls to be handled by this bean.

Specified by:

initializeAdapterFor in class AbstractAnnotationHandlerBeanPostProcessor

Parameters:

bean - The bean that the EventListenerAdapter has to adapt

Returns:

an event handler adapter for the given bean

isPostProcessingCandidate

protected boolean isPostProcessingCandidate(Class<?> targetClass)

Description copied from class: AbstractAnnotationHandlerBeanPostProcessor

Indicates whether an object of the given targetClass should be post processed.

Specified by:

isPostProcessingCandidate in class AbstractAnnotationHandlerBeanPostProcessor

Parameters:

targetClass - The type of bean

Returns:

true to post process bean of given type, false otherwise

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Throws:

Exception

setExecutor

public void setExecutor(Executor executor)

Sets the Executor to use when the AnnotationEventListenerBeanPostProcessor encounters event listeners with the AsynchronousEventListener annotation.

Parameters:

executor - the Executor to use for asynchronous event listeners

setEventBus

public void setEventBus(EventBus eventBus)

Sets the event bus to which detected event listeners should be subscribed. If none is provided, the event bus will be automatically detected in the application context.

Parameters:

eventBus - the event bus to subscribe detected event listeners to