public class

AsyncExecutionInterceptor

extends Object
implements Ordered
java.lang.Object
   ↳ org.springframework.aop.interceptor.AsyncExecutionInterceptor

Class Overview

AOP Alliance MethodInterceptor that processes method invocations asynchronously, using a given AsyncTaskExecutor. Typically used with the org.springframework.context.task.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).

See Also

Summary

[Expand]
Inherited Constants
From interface org.springframework.core.Ordered
Public Constructors
AsyncExecutionInterceptor(AsyncTaskExecutor asyncExecutor)
Create a new AsyncExecutionInterceptor.
AsyncExecutionInterceptor(Executor asyncExecutor)
Create a new AsyncExecutionInterceptor.
Public Methods
int getOrder()
Return the order value of this object, with a higher value meaning greater in terms of sorting.
Object invoke(MethodInvocation invocation)
[Expand]
Inherited Methods
From class java.lang.Object
From interface org.springframework.core.Ordered

Public Constructors

public AsyncExecutionInterceptor (AsyncTaskExecutor asyncExecutor)

Create a new AsyncExecutionInterceptor.

Parameters
asyncExecutor the Spring AsyncTaskExecutor to delegate to

public AsyncExecutionInterceptor (Executor asyncExecutor)

Create a new AsyncExecutionInterceptor.

Parameters
asyncExecutor the java.util.concurrent Executor to delegate to (typically a java.util.concurrent.ExecutorService

Public Methods

public int getOrder ()

Return the order value of this object, with a higher value meaning greater in terms of sorting.

Normally starting with 0, with Integer.MAX_VALUE indicating the greatest value. Same order values will result in arbitrary positions for the affected objects.

Higher values can be interpreted as lower priority. As a consequence, the object with the lowest value has highest priority (somewhat analogous to Servlet "load-on-startup" values).

Returns
  • the order value

public Object invoke (MethodInvocation invocation)

Throws
Throwable