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| distributed computing | |
| corba | |
| middleware | |
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ORBs handle the transformation of in-process data structures to the byte sequence which is transmitted over the network (of course also the reverse transformation). This is called Marshalling or Serialization . Some ORBs, such as CORBA -compliant systems, use an Interface Description Language ( IDL ) to describe the data which is to be transmitted on remote calls. Before object-oriented programming ( OOP ) became mainstream, a similar technology called Remote Procedure Call (RPC) was popular. In addition to marshalling data, ORBs often expose many more features, such as Distributed Transactions , Directory Services or Realtime scheduling. In the object oriented languages, the ORB is an object, having methods to connect the objects being served. After such an object is connected to the ORB, the methods of that object become accessible for remote invocations. ORB must also have some means to obtain the network address of the object that has now became remote. The typical ORB also has many other methods. SEE ALSO
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