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Special Edition Using Java™ 2 Enterprise Edition by Mark Wutka

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Object References

You have already seen that RMI has remote object identifiers and Enterprise JavaBeans have handles. The items represent addresses of remote objects—they tell the various libraries where to find a remote object. CORBA's remote object reference is called an IOR (Inter-ORB Reference). You use IORs mainly to pass addresses from one ORB to another.

You know, already, that you use a CORBA naming service to locate CORBA objects. Different ORBs have their own custom naming services, however. What happens if a client using the Visibroker ORB wants to access a server running Orbix? Well, because CORBA uses a standard protocol between the client and the server, the only trick is letting the client know where to find the server.

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