Abstract
An approach for supporting physical independence in Object Database Servers is proposed in this paper. While in current implementations the strategy for storing data objects reflects the logical object definitions, a certain degree of independence in the physical database organization would be essential to meet specific performance requirements. In this paper, a canonical object data model and a storage object data model are presented. In the first, the objects are organized in classes; in the second, physical objects with similar structures are grouped in collections. Mechanisms for mapping data structures and operations from the logical level to the physical level are discussed, and a comprehensive example is given.
This work was funded in part by the ESPRIT Basic Research Action Project No. 3070, FIDE (Formally Integrated Data Environment) and in part by Progetto Finalizzato Sistemi Informatici e Calcolo Parallelo of C.N.R.
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© 1992 Springer-Verlag Berlin Heidelberg
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Aloia, N., Barneva, S., Rabitti, F. (1992). Supporting physical independence in an Object Database Server. In: Madsen, O.L. (eds) ECOOP ’92 European Conference on Object-Oriented Programming. ECOOP 1992. Lecture Notes in Computer Science, vol 615. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0053048
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DOI: https://doi.org/10.1007/BFb0053048
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