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Structure and Encapsulation in Distributed Systems: the Proxy Principle

Marc Shapiro 1 
1 SOR - Distributed Object Systems
Inria Paris-Rocquencourt
Abstract : We present a novel view of the structuring of distributed systems, and a few examples of its utilization in an object-oriented context. In a distributed system, the structure of a service or subsystem may be complex, being implemented as a set of communicating server objects; however, this complexity of structure should not be apparent to the client. In our proposal, a client must rst acquire a local object, called a proxy, in order to use such a service. The proxy represents the whole set of servers. The client directs all its communication to the proxy. The proxy, and all the objects it represents, collectively form one distributed object, which is not decomposable by the client. Any higher-level communication protocols are internal to this distributed object. Such a view provides a powerful structuring framework for distributed systems; it can be implemented cheaply without sacricing much exibility. It subsumes may previous proposals, but encourages better information-hiding and encapsulation
keyword : loo rep
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Submitted on : Thursday, January 7, 2010 - 9:42:57 AM
Last modification on : Thursday, February 3, 2022 - 11:16:45 AM
Long-term archiving on: : Friday, June 18, 2010 - 12:28:50 AM


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  • HAL Id : inria-00444651, version 1



Marc Shapiro. Structure and Encapsulation in Distributed Systems: the Proxy Principle. Int. Conf. on Distr. Comp. Sys. (ICDCS), IEEE, 1986, Cambridge, MA, USA, United States. pp.198--204. ⟨inria-00444651⟩



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