Programming and Computer Software

, Volume 26, Issue 4, pp 207–215 | Cite as

Implementing associations among classes in an environment of active databases

  • J. Torres
  • O. Martin
  • J. A. Troyano
  • M. Toro


The association is a native concept from relational databases, one that has been adapted to object oriented (OO) modelling. It is an interesting operator used to describe links among objects of a system, commonly included in the most popular diagram-based OO methodologies. However, those methodologies sometimes present a lack of formality that may undermine its use. In this paper we formalize the semantics of associations. Firstly, we will describe an OO model based on different kinds of constraints. Some of them will be especially useful for describing the semantics of associations. Finally, we will present some remarks about implementation by means of triggers, a new feature incorporated in databases to specify an inner active behavior.


Active Rule Local View Active Database Abstract Data Type Associate Class 
These 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.


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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  1. 1.Department of Languages and Computer SystemsUniversity of SevilleSpain

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