Abstract
In this paper we present a framework of method evolution handling for object-oriented databases. Behavioural consistency is also addressed. Two levels of granularity for method evolution are described. The first level relates to the evolution of methods in the context of a class inheritance hierarchy, and concerns the semantics of the polymorphism of methods. The second level is the behavioural evolution in which the chain of calling relationships between methods is considered. A graph based approach is used for the behavioural consistency checking in order to prevent the following problems: run-time type errors, side-effects, redundant methods, and unexpected behaviours.KeywordsConsistency CheckUnexpected BehaviourMethod DefinitionMethod SchemaBehavioural ConsistencyThese 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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