Hey,
I couldn't find a complete example of a SPIN cardinality constraint, but I
put together pieces that I found (mainly in the SPL). However, I can't get
it to work -- the constraint does not seem to execute.
:ProductOrServiceModel a rdfs:Class, owl:Class ;
rdfs:subClassOf gr:ProductOrServiceModel ;
spin:constraint [ a :CardinalityViolationTemplate ;
spl:predicate rdf:type ;
spl:minCount "3"^^xsd:integer
] .
:CardinalityViolationTemplate a spin:Template ;
spin:body [ a sp:Construct ;
sp:text """CONSTRUCT {
_:b0 a spin:ConstraintViolation .
_:b0 spin:violationRoot ?this .
_:b0 spin:violationPath ?predicate .
_:b0 rdfs:label "Property {?predicate} does not have the required
cardinality of min {?minCount} and max {?maxCount}" .
}
WHERE {
{
FILTER (bound(?minCount) && (spl:objectCount(?this, ?predicate) <
?minCount)) .
}
UNION
{
FILTER (bound(?maxCount) && (spl:objectCount(?this, ?predicate) >
?maxCount)) .
}
}"""^^xsd:string ] ;
spin:constraint [ a spl:Argument ;
spl:predicate spl:predicate ;
spl:valueType rdf:Property
] ,
[ a spl:Argument ;
spl:predicate spl:minCount ;
spl:valueType xsd:integer ;
spl:optional "true"^^xsd:boolean
] ,
[ a spl:Argument ;
spl:predicate spl:maxCount ;
spl:valueType xsd:integer ;
spl:optional "true"^^xsd:boolean
] .
Can you see what's wrong here?
Thanks,
Martynas
graphityhq.com
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