程序包 infra.aop.interceptor

类 AsyncExecutionInterceptor

java.lang.Object
infra.aop.interceptor.AsyncExecutionAspectSupport
infra.aop.interceptor.AsyncExecutionInterceptor
所有已实现的接口:
infra.beans.factory.Aware, infra.beans.factory.BeanFactoryAware, infra.core.Ordered, Advice, Interceptor, MethodInterceptor
public class AsyncExecutionInterceptor extends AsyncExecutionAspectSupport implements MethodInterceptor, infra.core.Ordered
AOP Alliance MethodInterceptor that processes method invocations asynchronously, using a given AsyncTaskExecutor. Typically used with the infra.scheduling.annotation.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 infra.scheduling.annotation.AsyncResult or EJB's jakarta.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.

The AnnotationAsyncExecutionInterceptor subclass is preferred for use due to its support for executor qualification in conjunction with @Async annotation.

从以下版本开始:
4.0
作者:
Juergen Hoeller, Chris Beams, Stephane Nicoll, Harry Yang
另请参阅:
  • infra.scheduling.annotation.Async
  • infra.scheduling.annotation.AsyncAnnotationAdvisor
  • infra.scheduling.annotation.AnnotationAsyncExecutionInterceptor

  • 构造器详细资料

    • AsyncExecutionInterceptor

      public AsyncExecutionInterceptor(@Nullable Executor defaultExecutor)
      Create a new instance with a default AsyncUncaughtExceptionHandler.
      参数:
      defaultExecutor - the Executor (typically a Framework AsyncTaskExecutor or ExecutorService) to delegate to; a local executor for this interceptor will be built otherwise

    • AsyncExecutionInterceptor

      public AsyncExecutionInterceptor(@Nullable Executor defaultExecutor, AsyncUncaughtExceptionHandler exceptionHandler)
      Create a new AsyncExecutionInterceptor.
      参数:
      defaultExecutor - the Executor (typically a Framework AsyncTaskExecutor or ExecutorService) to delegate to; a local executor for this interceptor will be built otherwise
      exceptionHandler - the AsyncUncaughtExceptionHandler to use

  • 方法详细资料

    • invoke

      @Nullable 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

      @Nullable protected String getExecutorQualifier(Method method)
      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
      另请参阅:

    • getDefaultExecutor

      @Nullable protected Executor getDefaultExecutor(@Nullable infra.beans.factory.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:

    • getOrder

      public int getOrder()
      指定者:
      getOrder 在接口中 infra.core.Ordered