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Design and implementation of an active object-oriented database supporting construction of database tools

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Rules in Database Systems (RIDS 1995)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 985))

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Abstract

We discuss the implementation of GOAD (Gemstone Object-oriented Active Database), an active object-oriented database built on top of GemStone. This system has been developed with the specific aim of supporting interface tools for the creation and maintenance of rule bases, and we give particular attention to explaining how GOAD is designed to meet this aim. We show how objects, classes and metaclasses can support a three level event model which integrates with the underlying system in an ‘open’ manner. Moreover, by providing a uniform interface to these different objects, we are providing support for the implementation of more generic tools. We discuss the design of the system and how we gather inherited rules at run-time in an efficient manner. We explain the problems that arise as a result of our desired mode of implementation and how they were circumvented. Finally we discuss our future work and specifically how we plan to implement tools for the easier creation of rule bases.

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Authors and Affiliations

  1. Dept. of Comp. Maths., Univ. of Wales Coll. of Cardiff, PO Box 916, CF2 4YN, Cardiff, UK

    Ian S. Thomas & Andrew C. Jones

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  1. Ian S. Thomas
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  2. Andrew C. Jones
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Timos Sellis

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© 1995 Springer-Verlag Berlin Heidelberg

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Thomas, I.S., Jones, A.C. (1995). Design and implementation of an active object-oriented database supporting construction of database tools. In: Sellis, T. (eds) Rules in Database Systems. RIDS 1995. Lecture Notes in Computer Science, vol 985. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60365-4_125

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  • DOI: https://doi.org/10.1007/3-540-60365-4_125

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60365-8

  • Online ISBN: 978-3-540-45137-2

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