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Maintaining the Consistency of Class Libraries During Evolution

Mezini, Mira :
Maintaining the Consistency of Class Libraries During Evolution.
In: 12th Annual Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA'97), 05-09.10.1997, Atlanta, GA, USA. Proceedings of OOPSLA'97: 12th Annual Conference on Object-Oriented Programming, Systems, Languages, and Applications
[Conference or Workshop Item] , (1997)

Abstract

Two important problems of object-oriented reuse are the propagation of design and implementation specifics of the base software to the inheritors, and the protection of the inheritors against changes in the base software. In this paper, we argue that the simple inheritance rules of existing object-oriented languages are not sufficient for properly dealing with these problems. In the proposal presented in this paper, programmers are enabled to make metalevel declarations of the internal protocols and dependencies of their classes. Additionally, changes of the base module are automatically monitored to filter out information about the alterations that may invalidate already existing inheritors. Based on these informations, the subclassing semantics is adjusted such that the maintenance of the base module properties and the protection of the inheritor is ensured during their integration. In this way, language support is provided for keeping the behavior of reusable software consistent during its evolution.

Item Type: Conference or Workshop Item
Erschienen: 1997
Creators: Mezini, Mira
Title: Maintaining the Consistency of Class Libraries During Evolution
Language: English
Abstract:

Two important problems of object-oriented reuse are the propagation of design and implementation specifics of the base software to the inheritors, and the protection of the inheritors against changes in the base software. In this paper, we argue that the simple inheritance rules of existing object-oriented languages are not sufficient for properly dealing with these problems. In the proposal presented in this paper, programmers are enabled to make metalevel declarations of the internal protocols and dependencies of their classes. Additionally, changes of the base module are automatically monitored to filter out information about the alterations that may invalidate already existing inheritors. Based on these informations, the subclassing semantics is adjusted such that the maintenance of the base module properties and the protection of the inheritor is ensured during their integration. In this way, language support is provided for keeping the behavior of reusable software consistent during its evolution.

Title of Book: Proceedings of OOPSLA'97: 12th Annual Conference on Object-Oriented Programming, Systems, Languages, and Applications
Divisions: Department of Computer Science
Department of Computer Science > Software Technology
Event Title: 12th Annual Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA'97)
Event Location: Atlanta, GA, USA
Event Dates: 05-09.10.1997
Date Deposited: 17 Sep 2009 08:29
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