What is the ORB?

Bruce Martin

The Object Request Broker (ORB) is the distributed service that implements requests to remote objects. It locates the remote object on the network, communicates the request to the object, waits for the results and when available communicates those results back to the client. The ORB implements location transparency. Exactly the same request mechanism is used by the client and the CORBA object regardless of where the object is located. It might be in the same process with the client, down the hall or across the planet. The client cannot tell the difference. The ORB implements programming language independence for the request. The client issuing the request can be written in a different programming language from the implementation of the CORBA object. The ORB does the necessary translation between programming languages. Language bindings are defined for all popular programming languages.

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