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Technology of Object-Oriented Languages and Systems   p. 53
Persistent Object Synchronization with Active Relational Databases
Fabio A.M. Porto, Pontificia Universidade Católica do Rio de Janeiro
Sergio R. Carvalho, Pontificia Universidade Católica do Rio de Janeiro
Mauricio J. Vianna de Silva, Pontificia Universidade Católica do Rio de Janeiro
Rubens N. Melo, Pontificia Universidade Católica do Rio de Janeiro

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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TOOLS.1999.787606
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Abstract
One of the most common client/server architectures in enterprise systems today is the combination of object-oriented applications with active relational database systems. With this combination, developers have to overcome a difficult problem: the impedance mismatch between object orientation and the relational model. To date, there are several incomplete approaches for describing the integration of static and dynamic object aspects and active relational databases. An important issue missing from these approaches is the state synchronization between server tuples and client-cached objects. In a previous paper we proposed a technique for mapping the dynamic behavior of objects into active relational databases, using database triggers and stored-procedures. This paper extends our previous one with an architecture based on a replication strategy that maintains server tuples and client-cached objects synchronized with respect to state. This architecture automatically updates client-cached object versions when their corresponding server database tuples are updated.
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Index Terms- object orientation, active relational databases, state synchronization, data replication, object cache, stored procedures Citation:  Fabio A.M. Porto, Sergio R. Carvalho, Mauricio J. Vianna de Silva, Rubens N. Melo, "Persistent Object Synchronization with Active Relational Databases," tools, p. 53,  Technology of Object-Oriented Languages and Systems,  1999