Weaving aspect-oriented constraints into metamodel-based model transformation steps

  • Authors:

  • László Lengyel;Tihamér Levendovszky;Hassan Charaf

  • Affiliations:

  • Budapest University of Technology and Economics, Budapest, Hungary;Budapest University of Technology and Economics, Budapest, Hungary;Budapest University of Technology and Economics, Budapest, Hungary

  • Venue:
  • PCI'05 Proceedings of the 10th Panhellenic conference on Advances in Informatics
  • Year:
  • 2005

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Abstract

Graph rewriting is a widely used approach to model transformation. In general, graph rewriting rules parse graphs only by topological concerns, but they are not sophisticated enough to match a graph with a node which has a special property. In case of diagrammatic languages, such as the Unified Modeling Language (UML), the exclusive topological parsing is found to be not enough. To define the transformation steps in a more refined way additional constraints must be specified, which ensures the correctness of the attributes among others. Dealing with OCL constraints provides a solution for the unsolved issues. Often, the same constraint is repetitiously applied in many different places in a transformation. It would be beneficial to describe a common constraint in a modular manner, and to designate the places where it is to be applied. This paper presents the problem of the crosscutting constraints in graph transformation steps, provides an aspect-oriented solution for it, and introduces the weaving algorithms used to propagate aspect-oriented constraints to graph transformation steps.