Dear users,
we have had several requests from people who would like to integrate
SPIN functionality (SPARQL-based constraint checking, inferencing,
user-defined functions) into their own applications. In order to
encourage the wider adoption of SPIN in the community, we have
therefore decided to make the key features of our SPIN implementation
open source:
http://www.topquadrant.com/topbraid/spin/api/
The SPIN API is built on Jena and provides the following features:
• Converters between textual SPARQL syntax and the SPIN RDF Vocabulary
• A SPIN-based constraint checking engine (via spin:constraint)
• A SPIN-based inferencing engine (via spin:rule and spin:constructor)
• Support to execute user-defined SPIN functions using Jena/ARQ
• Support to execute user-defined SPIN templates
The license has been selected to allow open source projects (from
universities etc) to use SPIN without further complications. For
closed source users, we offer a commercial license that also provides
business users assurance and support. With this policy we hope to
encourage researchers to provide their (open source) implementations
back to the community to help the SPIN community grow.
The SPIN API is currently in beta, and the official 1.0 release is
scheduled in conjunction with TopBraid 3.0 in the next few weeks. We
appreciate your feedback in the meantime.
Kinds regards,
Holger
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