Diamond security policy for object-oriented databases

Linda M. Null, Johnny Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Object-oriented database systems provide a challenge in the area of concurrency control because of the complicated types of data that exist in these databases and because of the semantic relationships that exist among the data. In particular, the class/subclass, class/instance, and aggregate object hierarchies demand richer and more complex locking protocols than exist in conventional systems. This paper provides locking protocols for transactions operating in an object-oriented environment, emphasizing the necessary steps to be taken when accessing objects semantically related to other objects via the three hierarchies.

Original languageEnglish (US)
Title of host publicationApplied Computing
Subtitle of host publicationTechnological Challenges of the 1990's
PublisherPubl by ACM
Number of pages8
ISBN (Print)089791502X, 9780897915021
StatePublished - 1992
EventProceedings of the 1992 ACM/SIGAPP Symposium on Applied Computing SAC '92 - Kansas City, KS, USA
Duration: Mar 1 1992Mar 3 1992

Publication series

NameApplied Computing: Technological Challenges of the 1990's


OtherProceedings of the 1992 ACM/SIGAPP Symposium on Applied Computing SAC '92
CityKansas City, KS, USA

All Science Journal Classification (ASJC) codes

  • General Engineering


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