The Object Request Broker (ORB) pass by reference option determines if pass by reference or pass by value semantics should be used when handling parameter objects involved in an EJB request.
ObjectRequestBroker (ORB)通过引用传递选项确定，在处理EJB 请求中涉及的参数对象时应该使用通过引用传递还是通过值传递语义。
If the EJB client and EJB modules are mapped to different application server instances (often referred to as split-tier), then the EJB modules must be invoked remotely using pass by value semantics.
如果EJB客户机和EJB模块被映射到不同的应用服务器实例(通常表示为split - tier)，则必须使用通过值传递的语义来远程调用EJB模块。
However, you must be aware that these alternatives change the semantics of the interaction from pass-by-value to pass-by-reference.
然而，您必须注意到这些可供选择的方案会将交互方法从按值传递(pass - by - value)改变为按引用传递(pass - by - reference)。
If you need runtime polymorphism, you must not use pass-by-value.
如果你需要运行时多态，你不能使用按值传递。
If you need runtime polymorphism, you must not use pass-by-value.
如果你需要运行时多态，你不能使用按值传递。
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