Remote interfaces to session or entity EJB components provide location independence.
会话或实体e JB组件的远程接口提供了位置独立性。
2
Session beans and entity beans can send JMS messages, but can only receive them synchronously.
会话bean和实体bean可以发送JMS消息,但只能同步接收这些JMS消息。
3
Upon receiving a message, the client could then establish a synchronous RMI connection with the application server and invoke the session or entity beans in the usual way.