Revision as of 23:34, 23 October 2007 edit Yonkeltron (talk \| contribs) Extended confirmed users 523 edits m changed druby to DRb ← Previous edit		Revision as of 20:18, 1 March 2009 edit undo Krzys ostrowski (talk \| contribs) 64 edits Discussion of different types of distributed objects: replicated objects and live distributed objects. Next edit →
Line 1: The term '''~~Distributed~~distributed objects''' ~~are~~usually refers to [[Computer software\|software]] modules that are designed to work together, but reside either in multiple [[computer]]s connected via a [[Computer network\|network]] or in different [[Process (computing)\|processes]] inside the same computer. One object sends a message to another object in a remote machine or process to perform some task. The results are sent back to the calling object. The term may also generally refer to one of the extensions of the basic [[object (computer science)\|object]] concept used in the context of distributed computing, such as ''replicated objects'' or ''live distributed objects''. * ''[[replication (computer science)\|Replicated objects]]'' are groups of software components (''replicas'') that run a distributed multi-party protocol to achieve a high degree of consistency between their internal states, and that respond to requests in a coordinated manner. Referring to the group of replicas jointly as an ''object'' reflects the fact that interacting with any of them exposes the same externally visible state and behavior. * ''[[live distributed object\|Live distributed objects]]'' (or simply ''[[live distributed object\|live objects]]'')<ref>Ostrowski, K., Birman, K., Dolev, D., and Ahnn, J. (2008). "Programming with Live Distributed Objects", ''Proceedings of the 22nd European Conference on Object-Oriented Programming'', Paphos, Cyprus, July 07 - 11, 2008, J. Vitek, Ed., ''Lecture Notes In Computer Science'', vol. 5142, Springer-Verlag, Berlin, Heidelberg, 463-489, http://portal.acm.org/citation.cfm?id=1428508.1428536.</ref> generalize the ''replicated object'' concept to groups of replicas that might internally use any distributed protocol, perhaps resulting in only a weak consistency between their local states. Live distributed objects can also be defined as running instances of distributed multi-party protocols, viewed from the object-oriented perspective as entities that have distinct identity, and that can encapsulate distributed state and behavior. See also [[Internet protocol suite]].

Distributed object: Difference between revisions