Yes this is implemented in ARQ2SPIN:
public static String getTextOnly(Resource spinCommand) {
// Return sp:text if this is the only property of the command
apart from the rdf:type triple
Statement s = spinCommand.getProperty(SP.text);
if(s != null) {
if(SPTextUtil.hasSPINRDF(spinCommand)) {
return null;
}
else {
return s.getString();
}
}
return null;
}
and the crucial line is
if(!RDF.type.equals(o.getPredicate()) &&
!SP.text.equals(o.getPredicate()) &&
!SPIN.thisUnbound.equals(o.getPredicate())) {
which means that it only allows rdf:type or spin:thisUnbound apart from
the sp:text triple. I guess I didn't want to enumerate all possible
other properties that may exist, so you are running into an unexpected
use case. In most use cases those SPIN RDF structures are created by
editing in TBC and those would discard the extra triple anyway, so I am
afraid this is not a high priority issue for us right now. If you want
to submit a patch for your use case, I'd be happy to fold it into the
next release. I guess we could either hard-code the properties that you
want to allow or otherwise find a better implementation of hasSPINRDF
(maybe looking for sp:where is enough if that always exists - I don't
know off the top of my head).
Thanks,
Holger
On 4/29/2014 9:35, pu...@xml.lt wrote:
Hey,
I have some SPIN queries in my RDF, like this:
<#DescribeProducts> a sp:Describe ;
sp:text """PREFIX ... """^^xsd:string .
It works fine. However, if I add some more properties to the
<#DescribeProducts> resource (such as rdfs:isDefinedBy),
SPINFactory.asQuery() starts returning weird results like "DESCRIBE
*", which is not what the original query is.
Does it mean the short query form can only have sp:text property? Is
this an intentional limitation?
Martynas
graphityhq.com
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