java.lang.Object
- org.springframework.aop.framework.ProxyConfig
- - org.springframework.aop.framework.ProxyProcessorSupport
  - - org.springframework.aop.framework.AbstractAdvisingBeanPostProcessor
    - - org.springframework.aop.framework.autoproxy.AbstractBeanFactoryAwareAdvisingPostProcessor
      - org.springframework.scheduling.annotation.AsyncAnnotationBeanPostProcessor

All Implemented Interfaces:
Serializable, AopInfrastructureBean, Aware, BeanClassLoaderAware, BeanFactoryAware, BeanPostProcessor, Ordered
```
public class AsyncAnnotationBeanPostProcessor
extends AbstractBeanFactoryAwareAdvisingPostProcessor
```
Bean post-processor that automatically applies asynchronous invocation behavior to any bean that carries the Async annotation at class or method-level by adding a corresponding AsyncAnnotationAdvisor to the exposed proxy (either an existing AOP proxy or a newly generated proxy that implements all of the target's interfaces).
The TaskExecutor responsible for the asynchronous execution may be provided as well as the annotation type that indicates a method should be invoked asynchronously. If no annotation type is specified, this post- processor will detect both Spring's @Async annotation as well as the EJB 3.1 javax.ejb.Asynchronous annotation.
For methods having a void return type, any exception thrown during the asynchronous method invocation cannot be accessed by the caller. An AsyncUncaughtExceptionHandler can be specified to handle these cases.
Note: The underlying async advisor applies before existing advisors by default, in order to switch to async execution as early as possible in the invocation chain.
Since:
3.0
Author:
Mark Fisher, Juergen Hoeller, Stephane Nicoll
See Also:
Async, AsyncAnnotationAdvisor, AbstractAdvisingBeanPostProcessor.setBeforeExistingAdvisors(boolean), ScheduledAnnotationBeanPostProcessor, Serialized Form

Field Summary
Fields
Modifier and Type Field Description
static String DEFAULT_TASK_EXECUTOR_BEAN_NAME
The default name of the TaskExecutor bean to pick up: "taskExecutor".
protected Log logger
- Fields inherited from class org.springframework.aop.framework.AbstractAdvisingBeanPostProcessor
  advisor, beforeExistingAdvisors
- Fields inherited from interface org.springframework.core.Ordered
  HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary
Constructors
Constructor Description
AsyncAnnotationBeanPostProcessor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`setAsyncAnnotationType(Class<? extends Annotation> asyncAnnotationType)`	Set the 'async' annotation type to be detected at either class or method level.
`void`	`setBeanFactory(BeanFactory beanFactory)`	Callback that supplies the owning factory to a bean instance.
`void`	`setExceptionHandler(AsyncUncaughtExceptionHandler exceptionHandler)`	Set the `AsyncUncaughtExceptionHandler` to use to handle uncaught exceptions thrown by asynchronous method executions.
`void`	`setExecutor(Executor executor)`	Set the `Executor` to use when invoking methods asynchronously.

Methods inherited from class org.springframework.aop.framework.autoproxy.AbstractBeanFactoryAwareAdvisingPostProcessor
prepareProxyFactory

Methods inherited from class org.springframework.aop.framework.AbstractAdvisingBeanPostProcessor
customizeProxyFactory, isEligible, isEligible, postProcessAfterInitialization, postProcessBeforeInitialization, setBeforeExistingAdvisors

Methods inherited from class org.springframework.aop.framework.ProxyProcessorSupport
evaluateProxyInterfaces, getOrder, getProxyClassLoader, isConfigurationCallbackInterface, isInternalLanguageInterface, setBeanClassLoader, setOrder, setProxyClassLoader

Methods inherited from class org.springframework.aop.framework.ProxyConfig
copyFrom, isExposeProxy, isFrozen, isOpaque, isOptimize, isProxyTargetClass, setExposeProxy, setFrozen, setOpaque, setOptimize, setProxyTargetClass, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - DEFAULT_TASK_EXECUTOR_BEAN_NAME
```
public static final String DEFAULT_TASK_EXECUTOR_BEAN_NAME
```
    The default name of the TaskExecutor bean to pick up: "taskExecutor".
    Note that the initial lookup happens by type; this is just the fallback in case of multiple executor beans found in the context.
    Since:
    4.2
    See Also:
    AsyncExecutionAspectSupport.DEFAULT_TASK_EXECUTOR_BEAN_NAME, Constant Field Values
  - logger
```
protected final Log logger
```
- Constructor Detail
  - AsyncAnnotationBeanPostProcessor
```
public AsyncAnnotationBeanPostProcessor()
```
- Method Detail
  - setAsyncAnnotationType
```
public void setAsyncAnnotationType(Class<? extends Annotation> asyncAnnotationType)
```
    Set the 'async' annotation type to be detected at either class or method level. By default, both the Async annotation and the EJB 3.1 javax.ejb.Asynchronous annotation will be detected.
    This setter property exists so that developers can provide their own (non-Spring-specific) annotation type to indicate that a method (or all methods of a given class) should be invoked asynchronously.
    Parameters:
    asyncAnnotationType - the desired annotation type
  - setExecutor
```
public void setExecutor(Executor executor)
```
    Set the Executor to use when invoking methods asynchronously.
    If not specified, default executor resolution will apply: searching for a unique TaskExecutor bean in the context, or for an Executor bean named "taskExecutor" otherwise. If neither of the two is resolvable, a local default executor will be created within the interceptor.
    See Also:
    AsyncAnnotationAdvisor(Executor, AsyncUncaughtExceptionHandler), AsyncExecutionInterceptor.getDefaultExecutor(BeanFactory), DEFAULT_TASK_EXECUTOR_BEAN_NAME
  - setExceptionHandler
```
public void setExceptionHandler(AsyncUncaughtExceptionHandler exceptionHandler)
```
    Set the AsyncUncaughtExceptionHandler to use to handle uncaught exceptions thrown by asynchronous method executions.
    Since:
    4.1
  - setBeanFactory
```
public void setBeanFactory(BeanFactory beanFactory)
```
    Description copied from interface: BeanFactoryAware
    Callback that supplies the owning factory to a bean instance.
    Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.
    Specified by:
    setBeanFactory in interface BeanFactoryAware
    Overrides:
    setBeanFactory in class AbstractBeanFactoryAwareAdvisingPostProcessor
    Parameters:
    beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.
    See Also:
    BeanInitializationException

Modifier and Type	Field	Description
`static String`	`DEFAULT_TASK_EXECUTOR_BEAN_NAME`	The default name of the `TaskExecutor` bean to pick up: "taskExecutor".
`protected Log`	`logger`

Class AsyncAnnotationBeanPostProcessor

Field Summary

Fields inherited from class org.springframework.aop.framework.AbstractAdvisingBeanPostProcessor

Fields inherited from interface org.springframework.core.Ordered

Constructor Summary

Method Summary

Methods inherited from class org.springframework.aop.framework.autoproxy.AbstractBeanFactoryAwareAdvisingPostProcessor

Methods inherited from class org.springframework.aop.framework.AbstractAdvisingBeanPostProcessor

Methods inherited from class org.springframework.aop.framework.ProxyProcessorSupport

Methods inherited from class org.springframework.aop.framework.ProxyConfig

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_TASK_EXECUTOR_BEAN_NAME

logger

Constructor Detail

AsyncAnnotationBeanPostProcessor

Method Detail

setAsyncAnnotationType

setExecutor

setExceptionHandler

setBeanFactory