ROL2(ID:7141/rol003)

Liu, Regina, 1999

version 2 of ROL, featuring true OO capabilities

People:
Related languages
ROL => ROL2   Evolution of
ROL2 => PLUTO   Extension of
References:
  • Liu, M. and M. Guo, ROL2: A Real Deductive Object-Oriented Database Language. In Proceedings of the 17th International Conference on Conceptual Modeling (ER 98), Singapore, November 16-19, 1998. Lecture Notes in Computer Science, Vol. 1507, Springer 1998 view details Abstract: ROL is a strongly typed deductive object-oriented database language. It integrates many important features of deductive databases  and object-oriented databases. However, it is only a structurally objectoriented language. In this paper, we describe our extension of ROL called  ROL2. ROL2 keeps all the important features of ROL. In addition, it incorporates important behaviorally object-oriented features such as rule-  based methods and encapsulation so that it is a real deductive object-oriented database language. It supports object identity, complex objects,  class hierarchy, methods, non-monotonic multiple structural and behavioral inheritance with overriding and blocking.
  • Liu, M. Overview of the ROL2 Deductive Object-Oriented Database System. In Proceedings of the 30 International Conferences on Technology of Object-Oriented Languages & Systems (TOOLS USA '99), Santa Barbara, U.S.A., August 1-5, 1999. IEEE Computer Society Press. view details Abstract: This paper presents an overview of ROL2, a novel deductive object-oriented database system developed at the University of Regina. ROL2 supports in a rule-based framework nearly all important object-oriented features such as object identity, complex objects, typing, information hiding,  rule-based methods, encapsulation of such methods, overloading, late binding, polymorphism, class  hierarchies, multiple structural and behavioral inheritance with overriding, blocking, and con  handling. It is so far the only deductive system that supports all these features in a pure rule-based  framework.
  • M. Liu, "ROL2: Towards a Real Deductive Object-Oriented Database Language" Submitted for journal publication. June 8, 1999 view details Extract: ROL2
    ROL is a strongly typed deductive object-oriented database language. It integrates many important features of deductive databases and object-oriented databases. However, it is only a structurally object-oriented language. In this paper, we present our  extension of ROL called ROL2. Most importantly, ROL2 supports behaviorally object-oriented features such as rule-based methods and encapsulation so that it is a now real  deductive object-oriented database language. It supports in a rule-based framework  nearly all important object-oriented features such as object identity, complex objects,  typing, information hiding, rule-based methods, encapsulation of such methods, overloading, late binding, polymorphism, class hierarchies, multiple structural and behavioral inheritance with overriding, blocking, and con handling. It is so far the only  deductive system that supports all these features in a pure rule-based framework.