java.lang.Object
- org.springframework.aop.interceptor.AsyncExecutionAspectSupport
- - org.springframework.aop.interceptor.AsyncExecutionInterceptor

所有已实现的接口:
Advice, Interceptor, MethodInterceptor, Aware, BeanFactoryAware, Ordered
直接已知子类:
AnnotationAsyncExecutionInterceptor
```
public class AsyncExecutionInterceptor
extends AsyncExecutionAspectSupport
implements MethodInterceptor, Ordered
```
AOP Alliance MethodInterceptor that processes method invocations asynchronously, using a given AsyncTaskExecutor. Typically used with the Async annotation.
In terms of target method signatures, any parameter types are supported. However, the return type is constrained to either void or java.util.concurrent.Future. In the latter case, the Future handle returned from the proxy will be an actual asynchronous Future that can be used to track the result of the asynchronous method execution. However, since the target method needs to implement the same signature, it will have to return a temporary Future handle that just passes the return value through (like Spring's AsyncResult or EJB 3.1's javax.ejb.AsyncResult).
When the return type is java.util.concurrent.Future, any exception thrown during the execution can be accessed and managed by the caller. With void return type however, such exceptions cannot be transmitted back. In that case an AsyncUncaughtExceptionHandler can be registered to process such exceptions.
As of Spring 3.1.2 the AnnotationAsyncExecutionInterceptor subclass is preferred for use due to its support for executor qualification in conjunction with Spring's @Async annotation.
从以下版本开始:
3.0
作者:
Juergen Hoeller, Chris Beams, Stephane Nicoll
另请参阅:
Async, AsyncAnnotationAdvisor, AnnotationAsyncExecutionInterceptor

字段概要
- 从类继承的字段 org.springframework.aop.interceptor.AsyncExecutionAspectSupport
  DEFAULT_TASK_EXECUTOR_BEAN_NAME, logger
- 从接口继承的字段 org.springframework.core.Ordered
  HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

构造器概要

构造器
构造器	说明
`AsyncExecutionInterceptor(Executor defaultExecutor)`	Create a new instance with a default `AsyncUncaughtExceptionHandler`.
`AsyncExecutionInterceptor(Executor defaultExecutor, AsyncUncaughtExceptionHandler exceptionHandler)`	Create a new `AsyncExecutionInterceptor`.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected Executor`	`getDefaultExecutor(BeanFactory beanFactory)`	This implementation searches for a unique `TaskExecutor` bean in the context, or for an `Executor` bean named "taskExecutor" otherwise.
`protected String`	`getExecutorQualifier(Method method)`	This implementation is a no-op for compatibility in Spring 3.1.2.
`int`	`getOrder()`	Get the order value of this object.
`Object`	`invoke(MethodInvocation invocation)`	Intercept the given method invocation, submit the actual calling of the method to the correct task executor and return immediately to the caller.

从类继承的方法 org.springframework.aop.interceptor.AsyncExecutionAspectSupport
determineAsyncExecutor, doSubmit, findQualifiedExecutor, handleError, setBeanFactory, setExceptionHandler, setExecutor

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - AsyncExecutionInterceptor
```
public AsyncExecutionInterceptor(Executor defaultExecutor)
```
    Create a new instance with a default AsyncUncaughtExceptionHandler.
    参数:
    defaultExecutor - the Executor (typically a Spring AsyncTaskExecutor or ExecutorService) to delegate to; as of 4.2.6, a local executor for this interceptor will be built otherwise
  - AsyncExecutionInterceptor
```
public AsyncExecutionInterceptor(Executor defaultExecutor,
                                 AsyncUncaughtExceptionHandler exceptionHandler)
```
    Create a new AsyncExecutionInterceptor.
    参数:
    defaultExecutor - the Executor (typically a Spring AsyncTaskExecutor or ExecutorService) to delegate to; as of 4.2.6, a local executor for this interceptor will be built otherwise
    exceptionHandler - the AsyncUncaughtExceptionHandler to use
- 方法详细资料
  - invoke
```
public Object invoke(MethodInvocation invocation)
              throws Throwable
```
    Intercept the given method invocation, submit the actual calling of the method to the correct task executor and return immediately to the caller.
    指定者:
    invoke 在接口中 MethodInterceptor
    参数:
    invocation - the method to intercept and make asynchronous
    返回:
    Future if the original method returns Future; null otherwise.
    抛出:
    Throwable - if the interceptors or the target object throws an exception
  - getExecutorQualifier
```
protected String getExecutorQualifier(Method method)
```
    This implementation is a no-op for compatibility in Spring 3.1.2. Subclasses may override to provide support for extracting qualifier information, e.g. via an annotation on the given method.
    指定者:
    getExecutorQualifier 在类中 AsyncExecutionAspectSupport
    参数:
    method - the method to inspect for executor qualifier metadata
    返回:
    always null
    从以下版本开始:
    3.1.2
    另请参阅:
    AsyncExecutionAspectSupport.determineAsyncExecutor(Method)
  - getDefaultExecutor
```
protected Executor getDefaultExecutor(BeanFactory beanFactory)
```
    This implementation searches for a unique TaskExecutor bean in the context, or for an Executor bean named "taskExecutor" otherwise. If neither of the two is resolvable (e.g. if no BeanFactory was configured at all), this implementation falls back to a newly created SimpleAsyncTaskExecutor instance for local use if no default could be found.
    覆盖:
    getDefaultExecutor 在类中 AsyncExecutionAspectSupport
    参数:
    beanFactory - the BeanFactory to use for a default executor lookup
    返回:
    the default executor, or null if none available
    另请参阅:
    AsyncExecutionAspectSupport.DEFAULT_TASK_EXECUTOR_BEAN_NAME
  - getOrder
```
public int getOrder()
```
    从接口复制的说明: Ordered
    Get the order value of this object.
    Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).
    Same order values will result in arbitrary sort positions for the affected objects.
    指定者:
    getOrder 在接口中 Ordered
    返回:
    the order value
    另请参阅:
    Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

类 AsyncExecutionInterceptor

字段概要

从类继承的字段 org.springframework.aop.interceptor.AsyncExecutionAspectSupport

从接口继承的字段 org.springframework.core.Ordered

构造器概要

方法概要

从类继承的方法 org.springframework.aop.interceptor.AsyncExecutionAspectSupport

从类继承的方法 java.lang.Object

构造器详细资料

AsyncExecutionInterceptor

AsyncExecutionInterceptor

方法详细资料

invoke

getExecutorQualifier

getDefaultExecutor

getOrder