org.springframework.scheduling.annotation
Class AsyncAnnotationAdvisor

java.lang.Object
  org.springframework.aop.support.AbstractPointcutAdvisor
      org.springframework.scheduling.annotation.AsyncAnnotationAdvisor

All Implemented Interfaces:

Serializable, Advisor, PointcutAdvisor, Aware, BeanFactoryAware, Ordered

public class AsyncAnnotationAdvisor
extends AbstractPointcutAdvisor
implements BeanFactoryAware

Advisor that activates asynchronous method execution through the Async annotation. This annotation can be used at the method and type level in implementation classes as well as in service interfaces.

This advisor detects the EJB 3.1 javax.ejb.Asynchronous annotation as well, treating it exactly like Spring's own Async. Furthermore, a custom async annotation type may get specified through the "asyncAnnotationType" property.

Since:

3.0

Author:

Juergen Hoeller

See Also:

PersistenceExceptionTranslationAdvisor, Repository, DataAccessException, PersistenceExceptionTranslator, Serialized Form

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

AsyncAnnotationAdvisor()
Create a new AsyncAnnotationAdvisor for bean-style configuration.

AsyncAnnotationAdvisor(Executor executor)
Create a new AsyncAnnotationAdvisor for the given task executor.

Method Summary

protected Advice	buildAdvice(Executor executor)
protected Pointcut	buildPointcut(Set<Class<? extends Annotation>> asyncAnnotationTypes) Calculate a pointcut for the given async annotation types, if any.
void	delegateBeanFactory(BeanFactory beanFactory)
Advice	getAdvice() Return the advice part of this aspect.
Pointcut	getPointcut() Get the Pointcut that drives this advisor.
void	setAsyncAnnotationType(Class<? extends Annotation> asyncAnnotationType) Set the 'async' annotation type.
void	setBeanFactory(BeanFactory beanFactory) Set the BeanFactory to be used when looking up executors by qualifier.
void	setTaskExecutor(Executor executor) Specify the task executor to use for asynchronous methods.

Methods inherited from class org.springframework.aop.support.AbstractPointcutAdvisor

equals, getOrder, hashCode, isPerInstance, setOrder

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncAnnotationAdvisor

public AsyncAnnotationAdvisor()

Create a new AsyncAnnotationAdvisor for bean-style configuration.

AsyncAnnotationAdvisor

public AsyncAnnotationAdvisor(Executor executor)

Create a new AsyncAnnotationAdvisor for the given task executor.

Parameters:

executor - the task executor to use for asynchronous methods

Method Detail

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)
                    throws BeansException

Set the BeanFactory to be used when looking up executors by qualifier.

Specified by:

setBeanFactory in interface BeanFactoryAware

Parameters:

beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.

Throws:

BeansException - in case of initialization errors

See Also:

BeanInitializationException

delegateBeanFactory

public void delegateBeanFactory(BeanFactory beanFactory)

setTaskExecutor

public void setTaskExecutor(Executor executor)

Specify the task executor to use for asynchronous methods.

setAsyncAnnotationType

public void setAsyncAnnotationType(Class<? extends Annotation> asyncAnnotationType)

Set the 'async' annotation type.

The default async annotation type is the Async annotation, as well as the EJB 3.1 javax.ejb.Asynchronous annotation (if present).

This setter property exists so that developers can provide their own (non-Spring-specific) annotation type to indicate that a method is to be executed asynchronously.

Parameters:

asyncAnnotationType - the desired annotation type

getAdvice

public Advice getAdvice()

Description copied from interface: Advisor

Return the advice part of this aspect. An advice may be an interceptor, a before advice, a throws advice, etc.

Specified by:

getAdvice in interface Advisor

Returns:

the advice that should apply if the pointcut matches

See Also:

MethodInterceptor, BeforeAdvice, ThrowsAdvice, AfterReturningAdvice

getPointcut

public Pointcut getPointcut()

Description copied from interface: PointcutAdvisor

Get the Pointcut that drives this advisor.

Specified by:

getPointcut in interface PointcutAdvisor

buildAdvice

protected Advice buildAdvice(Executor executor)

buildPointcut

protected Pointcut buildPointcut(Set<Class<? extends Annotation>> asyncAnnotationTypes)

Calculate a pointcut for the given async annotation types, if any.

Parameters:

asyncAnnotationTypes - the async annotation types to introspect

Returns:

the applicable Pointcut object, or null if none