Dear all, I have a question regarding the potential use of SHACL for a certain use-case, and I'm wondering if someone here can help me identify whether or not SHACL is a good solution for this. I am looking for a vocabulary that can declaratively describe RDF results of a certain operation, based on certain parameters. For example, assume the following operation can evaluate triple pattern queries: findMatchingTriples(subject, predicate, object) As far as I can see, SHACL doesn't provide a way to bind 'variables' to nodes in a shape. The closest I have come to describing such a triple pattern operation is using the following (invalid) SHACL shape: _:shape a sh:NodeShape; sh:targetNode _:subject; sh:property [ sh:path _:predicate; sh:hasValue _:object. ]. _:subject, _:predicate and _:object refer to the variable parameters of the operation. I assume I need some kind of abstraction layer above SHACL, that basically 'instantiates' SHACL shapes based on certain parameters. So my question is: is such an abstraction already possible in some form, or are there future plans for something like this? Or would you suggest using a SPARQL-based vocabulary for this, such as SPIN, as I don't really need SHACL's validation and constraint checking-features. Kind regards, Ruben TaelmanReceived on Monday, 28 August 2017 11:41:46 UTC
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