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dc.contributor.authorChalla, Siva Prasadarao Jr.en
dc.date.accessioned2014-03-14T20:21:30Zen
dc.date.available2014-03-14T20:21:30Zen
dc.date.issued1998-01-26en
dc.identifier.otheretd-2298-155032en
dc.identifier.urihttp://hdl.handle.net/10919/30354en
dc.description.abstractMost common object models of distributed object systems have a limited set of object-oriented features, lacking the advanced features of `polymorphism' (an abstraction mechanism that represents a quality or state of being able to assume different forms) and `concurrency' (the ability to have more than one thread of execution in an object simultaneously). The lack of support for advanced features is a serious limitation because it restricts the development of new components and limits reuse of existing of components that use these advanced features. As a result, wrappers must be used that hide the advanced features or components must be re-implemented using only the features of the common object model. In this dissertation, a new direction of research centered on a subset of object-oriented languages, specifically statically typed languages, is considered. One of the major drawbacks of existing distributed object systems is that they cater to a broad domain of programming languages including both object-oriented as well as non object-oriented languages. Mapping an object model into a non object-oriented language is a complex task and it does not appear natural to a native language user. The interoperable common object model (ICOM) proposed in this dissertation is an attempt to elevate common object models (with the advanced features of polymorphism and concurrency) closer to the object models of statically typed object-oriented languages. Specific features of the ICOM object model include: remote inheritance, method overloading, parameterized types, and guard methods. The actor model and reflection techniques are used to develop a uniform implementation framework for the ICOM object model in C++ and Modula-3. Prototype applications were implemented to demonstrate the utility of the advanced features of the ICOM object model. The main contributions of this dissertation are: design and implementation of a powerful common object model, an architecture for distributed compilation, and an implementation of a distributed object model using the actor model.en
dc.publisherVirginia Techen
dc.relation.haspartdiss.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectinteroperabilityen
dc.subjectdistributed object modelsen
dc.subjectdistributed object-oriented programmingen
dc.subjectobject-oriented programmingen
dc.subjectdistributed Act++en
dc.subjectcommon object modelsen
dc.titleImproving Polymorphism and Concurrency in Common Object Modelsen
dc.typeDissertationen
dc.contributor.departmentComputer Scienceen
dc.description.degreePh. D.en
thesis.degree.namePh. D.en
thesis.degree.leveldoctoralen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineComputer Scienceen
dc.contributor.committeechairKafura, Dennis G.en
dc.contributor.committeememberMidkiff, Scott F.en
dc.contributor.committeememberHeath, Lenwood S.en
dc.contributor.committeememberAbrams, Marcen
dc.contributor.committeememberArthur, James D.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-2298-155032/en
dc.date.sdate1998-01-26en
dc.date.rdate1999-03-03en
dc.date.adate1998-03-03en


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