An Implementation Architecture for Orthogonally Persistent Deductive Object-Oriented Database Systems

A novel architectural solution for implementing orthogonal persistence in deductive object-oriented database languages is presented. Central to the technique is a persistent type system implemented using distributed objects and ODMG's d Ref⟨T⟩ class. Use of distributed objects as database types naturally leads to a component-based multi-tier CORBA-like implementation architecture. This architecture seamlessly accommodates object-faulting and transitive persistence. This paper also discusses use of the architecture to implement a deductive object-oriented database system supporting the ROL language and orthogonal persistence