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Contexts and Views in Object-Oriented Languages

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Modeling and Using Context (CONTEXT 1999)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 1688))

Abstract

The object-oriented paradigm views systems as being composed of objects that model real-world entities. Objects sharing the same properties and responsibilities are categorized under one class. However, object oriented languages, in general, lack means that allow objects to be grouped on extrinsic grounds, such as concerning some specific topic of interest, being relevant to a particular user group, or being dependent on changes made to other objects. Also, object-oriented (OO) languages do not allow objects of the same class to exhibit relativized structure and behavior, for example in order to meet specific user needs.

View mechanisms developed for OO databases address the above issues, although, as will be argued, to a limited degree only. Therefore, this paper proposes a context mechanism for OO languages that extends the functionality of views. It will be shown in which way the context mechanism can deal with issues such as relativized structure and behavior of objects, relativized method execution, content-based authorization, and propagation of changes across contexts.

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Author information

Authors and Affiliations

  1. Department of Applied Computer Science and Information Systems, University of Vienna, Rathausstrasse 19/4, 1010, Vienna, Austria

    Renate Motschnig-Pitrik

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  1. Renate Motschnig-Pitrik
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Editor information

Editors and Affiliations

  1. University of Trento, DISA, 5, via Inama, I-38050, Trento, Italy

    Paolo Bouquet  & Massimo Benerecetti  & 

  2. IRST-ITC, Pante di Povo, I-38050, Trento, Italy

    Luciano Serafini

  3. University Paris VI, LIP6 4, Place Jussieu, F-75252, Paris Cedex 05, France

    Patrick Brézillon

  4. University of Trento, 26, via Verdi, I-38050, Trento, Italy

    Francesca Castellani

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© 1999 Springer-Verlag Berlin Heidelberg

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Motschnig-Pitrik, R. (1999). Contexts and Views in Object-Oriented Languages. In: Bouquet, P., Benerecetti, M., Serafini, L., Brézillon, P., Castellani, F. (eds) Modeling and Using Context. CONTEXT 1999. Lecture Notes in Computer Science(), vol 1688. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48315-2_20

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  • DOI: https://doi.org/10.1007/3-540-48315-2_20

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-66432-1

  • Online ISBN: 978-3-540-48315-1

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