org.springframework.scheduling.annotation
Class AnnotationAsyncExecutionInterceptor

java.lang.Object
  org.springframework.aop.interceptor.AsyncExecutionAspectSupport
      org.springframework.aop.interceptor.AsyncExecutionInterceptor
          org.springframework.scheduling.annotation.AnnotationAsyncExecutionInterceptor

All Implemented Interfaces:

Advice, Interceptor, MethodInterceptor, Aware, BeanFactoryAware, Ordered

public class AnnotationAsyncExecutionInterceptor
extends AsyncExecutionInterceptor

Specialization of AsyncExecutionInterceptor that delegates method execution to an Executor based on the Async annotation. Specifically designed to support use of Async.value() executor qualification mechanism introduced in Spring 3.1.2. Supports detecting qualifier metadata via @Async at the method or declaring class level. See getExecutorQualifier(Method) for details.

Since:

3.1.2

Author:

Chris Beams

See Also:

Async, AsyncAnnotationAdvisor

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

AnnotationAsyncExecutionInterceptor(Executor defaultExecutor)
Create a new AnnotationAsyncExecutionInterceptor with the given executor.

Method Summary

protected String

getExecutorQualifier(Method method) Return the qualifier or bean name of the executor to be used when executing the given method, specified via Async.value() at the method or declaring class level.

Methods inherited from class org.springframework.aop.interceptor.AsyncExecutionInterceptor

getOrder, invoke

Methods inherited from class org.springframework.aop.interceptor.AsyncExecutionAspectSupport

determineAsyncExecutor, setBeanFactory, setExecutor

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationAsyncExecutionInterceptor

public AnnotationAsyncExecutionInterceptor(Executor defaultExecutor)

Create a new AnnotationAsyncExecutionInterceptor with the given executor.

Parameters:

defaultExecutor - the executor to be used by default if no more specific executor has been qualified at the method level using Async.value().

Method Detail

getExecutorQualifier

protected String getExecutorQualifier(Method method)

Return the qualifier or bean name of the executor to be used when executing the given method, specified via Async.value() at the method or declaring class level. If @Async is specified at both the method and class level, the method's #value takes precedence (even if empty string, indicating that the default executor should be used preferentially).

Overrides:

getExecutorQualifier in class AsyncExecutionInterceptor

Parameters:

method - the method to inspect for executor qualifier metadata

Returns:

the qualifier if specified, otherwise empty string indicating that the default executor should be used

See Also:

AsyncExecutionAspectSupport.determineAsyncExecutor(Method)