Rewriting Queries by Means of Model Transformations from SPARQL to OQL and Vice-Versa

Authors:
Guillaume Hillairet;Frédéric Bertrand;Jean Yves Lafaye
Affiliations:
Laboratoire Informatique Image Interaction, University of La Rochelle, France;Laboratoire Informatique Image Interaction, University of La Rochelle, France;Laboratoire Informatique Image Interaction, University of La Rochelle, France
Venue:
ICMT '09 Proceedings of the 2nd International Conference on Theory and Practice of Model Transformations
Year:
2009

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Abstract

Implementing language translation is one of the main topics within the model to model transformation area. Nevertheless, a majority of solutions promoted by model driven engineering tools focus on transformations related to modeling languages. In this paper, we address query rewriting by means of model transformations. This study has been carried out within the context of implementing an object ontology mapping tool, which could enable bridging object oriented applications and RDF data sources. This approach allows querying RDF data sources via an object oriented query which is automatically rewritten in SPARQL (RDF query language) in order to access RDF data. Hence, the developer can freely focus upon the sole application object model. In this paper, we also present with solutions for translating SPARQL queries into object oriented queries, thus allowing the implementation of SPARQL endpoints for object oriented applications.