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A database evolution approach for object-oriented databases

Research output: Contribution in Book/Report/ProceedingsConference contribution

Publication date2001
Host publicationSoftware Maintenance, 2001. Proceedings. IEEE International Conference on
Place of PublicationWashington, DC, USA
PublisherIEEE Computer Society
Number of pages4
ISBN (Print)0-7695-1189-9
<mark>Original language</mark>English


The paper describes a composite evolution approach which integrates the evolution of the various types of entities in an object-oriented database into one model. The approach provides maintainers with a coherent and comprehensible view of the system and at the same time maintains change histories at a fine granularity. Links among meta-objects are implemented using dynamic relationships which are semantic constructs and first-class objects. Referential integrity is maintained by the relationships architecture reducing the evolution complexity at the meta-object level. A customisable and exchangeable instance adaptation approach is proposed. The approach is based on separating the instance adaptation code from class versions using aspects, abstractions used in Aspect-Oriented Programming to localise crosscutting concerns. A high level object-oriented model offering transparent access to the proposed evolution functionality is provided.