1996
DOI: 10.1007/s007780050020
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Type-safe relaxing of schema consistency rules for flexible modelling in OODBMS

Abstract: Object-oriented databases enforce behavioral schema consistency rules to guarantee type safety, i.e., that no run-time type error can occur. When the schema must evolve, some schema updates may violate these rules. In order to maintain behavioral schema consistency, traditional solutions require significant changes to the types, the type hierarchy and the code of existing methods. Such operations are very expensive in a database context. To ease schema evolution, we propose to support exceptions to the behavio… Show more

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Cited by 5 publications
(1 citation statement)
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“…In contrast, type consistency for typed OOPLs has been discussed in several articles [4,6,8]. Since the language is typed in these articles, it can be assume that we know in advance the class to which the returned objects should belong for every method implementation body.…”
Section: Figmentioning
confidence: 95%
“…In contrast, type consistency for typed OOPLs has been discussed in several articles [4,6,8]. Since the language is typed in these articles, it can be assume that we know in advance the class to which the returned objects should belong for every method implementation body.…”
Section: Figmentioning
confidence: 95%