Object Remote Procedure Call 对象远程过程调用
A handler can be anything from calling a method on an object, running a command or invoking a remote object call.
事件处理器可以做任何事,包括调用一个对象的方法,运行一个命令,或者对远程对象进行调用。
Each method provides a callback object so that you are notified asynchronously when the remote procedure call is complete.
每个方法都提供了一个回调对象,这样就可以在完成远程过程调用后收到异步通知。
To summarize, the ORB pass by reference option basically treats the invoked EJB method as a local call (even for EJBs with remote interfaces) and avoids the requisite object copy.
总的来说,OR B通过引用传递选项基本上将调用的EJB方法作为本地调用对待(甚至对于带远程接口的EJB),并避免必需的对象复制操作。
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