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Designing Storage Structures for Management of Materialised Methods in Object-Oriented Databases

  • Juliusz Jezierski
  • Mariusz Masewicz
  • Robert Wrembel
  • Bogdan Czejdo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2817)

Abstract

Efficient execution of an object method has a great impact on a query response time. Optimising access to data returned by methods is difficult as methods are written in a high-level programming language and their code is usually hidden to a query optimiser in order to preserve encapsulation. Moreover, estimating the cost of executing a method is another serious problem. In this paper we propose a framework for the materialisation of method results in object databases. In our approach, the materialisation of method m results also in the materialisation of intermediate results of methods called from m. We call this technique hierarchical materialisation. The hierarchical materialisation technique was implemented and evaluated in a prototype based on the FastObjects t7 object-oriented database.

Keywords

Geographical Information System Sensitive Attribute Time Overhead Object Identifier Query Response Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Juliusz Jezierski
    • 1
  • Mariusz Masewicz
    • 1
  • Robert Wrembel
    • 1
  • Bogdan Czejdo
    • 2
  1. 1.Institute of Computing SciencePoznan University of TechnologyPoznanPoland
  2. 2.Loyola UniversityNew OrleansUSA

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