An Efficient Method for Controlling Access in Object-Oriented Databases

In this paper, we present a locking-based concurrency control scheme fof object-oriented database (OODBs). The proposed scheme deals with class hierarchies in OODBs. Our scheme is based on implicit locking but designed to require less locking overhead than implicit locking for all types of accesses to OODBs. Our scheme makes use of intelligent method to reduce locking overhead. Especially, our scheme utilize only structural information of OODBs so that extra information to reduce locking overhead is not necessary. We also prove theoretically that our scheme performs better than implicit locking.