Dynamic Extension of CORBA Servers
Euro-Par '99 Proceedings of the 5th International Euro-Par Conference on Parallel Processing
Dynamic Reconfiguration of CORBA-Based Applications
SOFSEM '99 Proceedings of the 26th Conference on Current Trends in Theory and Practice of Informatics on Theory and Practice of Informatics
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Ability of heterogeneous systems cooperate is a real necessity that has been growing, due to the increasing development of the distributed processing technology. This necessity is driving the development of more suitable solutions. CORBA (Common Object Request Broker Architecture) specification presents an architecture which allows interoperability among heterogeneous distributed environment applications. However, because of the great flexibility offered in implementation decisions, many problems to extend interoperability between two ORBs developed by different technologies arise. This paper discusses these problems and their solutions and presents a set of operations to support a bridging mechanism extending access and location transparencies, considered fundamental for a distributed environment, to work beyond an ORB scope. A scheme to provide relocation transparency, extended to support interoperability, is also proposed. Finally, an implementation of these mechanisms over an ORB's prototype, developed at Unicamp, and ORBeline is described.