- From: RDF Data Shapes Working Group Issue Tracker <sysbot+tracker@w3.org>
- Date: Sun, 28 Feb 2016 23:29:39 +0000
- To: public-data-shapes-wg@w3.org
shapes-ISSUE-123 (DirectType syntax): Shall we unify the syntax of sh:directType and sh:class? [SHACL - Core]
http://www.w3.org/2014/data-shapes/track/issues/123
Raised by: Holger Knublauch
On product: SHACL - Core
The spec currently has sh:directType as a way to limit values to have the specified rdf:type only. In contrast to sh:class this will not walk into subclasses of that class.
One issue here is that we currently have sh:classIn (for multiple classes) but no sh:directTypeIn.
Another issue is that the distinction between sh:class and sh:directType is fairly small, and basically meaningless if inferencing has been activated.
I think we should consider changing the syntax so that it becomes
ex:MyShape
sh:property [
sh:predicate ex:myProperty ;
sh:class ex:Person ;
sh:excludeSubclasses true ;
] .
The sh:excludeSubclasses would serve as a flag to not walk into subclasses. It would also work for sh:classIn, solving the first issue without introducing yet another core construct.
Received on Sunday, 28 February 2016 23:29:41 UTC