The GReTL transformation language

  • Authors:
  • Tassilo Horn;Jürgen Ebert

  • Affiliations:
  • Institute for Software Technology, University Koblenz-Landau;Institute for Software Technology, University Koblenz-Landau

  • Venue:
  • ICMT'11 Proceedings of the 4th international conference on Theory and practice of model transformations
  • Year:
  • 2011

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Abstract

This paper introduces the graph-based transformation language GReTL. GReTL is an operational transformation language whose operations are either specified in plain Java using the GReTL API or in a simple domain-specific language. GReTL follows the conception of incrementally constructing the target metamodel together with the target graph. When creating a new metamodel element, a set-based semantic expression is specified that describes the set of instances that have to be created in the target graph. This expression is described by a query on the source graph. After a description of the foundations of GReTL, its most important elements are introduced along with a simple example.