Copyright 2004 INIST-CNRS CC BY 4.0 Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Computer science; theoretical automation; systems
Accession Number:
edscal.15568504
Database:
PASCAL Archive
Weitere Informationen
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.
