EJB @Asynchronous在同一个类中不起作用 [英] EJB @Asynchronous does not work in same class

问题描述

我有以下情况：

我希望methodB被执行10次并行。但是只有当从另一个bean调用methodB时才会发生。

I wish the "methodB" was executed 10 times paralleling. But it only happening when the "methodB" is called from another bean.

为什么当方法从另一个方法调用时，@Asynchronous的注释不起作用相同的类？

Why the annotation "@Asynchronous" does not work when the method is called from another method in the same class?

谢谢。

推荐答案

通过客户端代理进行呼叫，例如 @Local 或 @Remote 界面。这在EJB 3.1规范（第4.5 - 4.5.1节）中有描述：

It only works for methods call via a client proxy, for example a @Local or @Remote interface. This is described in the EJB 3.1 specs (section 4.5 - 4.5.1):

会话bean可以使用异步客户端调用语义

...

@Asynchronous注释用于指定哪个业务方法是异步的。

The @Asynchronous annotation is used to designate which business methods are asynchronous.

...

异步方法调用语义仅适用于无界面，本地业务和远程业务客户端视图。

Asynchronous method invocation semantics only apply to the no-interface, Local business, and Remote business client views.

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