Active and passive rules for complex object databases

Abstract

The problem of adding language facilities to express production rule in the framework of a complex object database with active behavior is considered. The issue of the definition of a suitable interaction between production rules and transactions is crucial in this context and is addressed in this paper: this involves questions regarding triggering and activation modes of production rules with respect to transaction execution, the management of multiple rules activation, and the definition of the related execution environment. We propose a rule-based language on complex objects that allows the definition of both (active) production rules and (passive) ordinary transactions in a unified framework.KeywordsProduction RuleExecution ModelFull ExpansionObject AtomRule ExecutionThese 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.