When I send data through a script that contains an IterateOverSelect
module, I'm reaching some unexpected results.
If my data contains something that meets the select query criteria,
and the body of the IterateOverSelect module is executed, then the
IterateOverSelect's next module receives all of the expected triples.
However, if my data does NOT contain anything that meets the select
query criteria of the IterateOverSelect's module, then the next module
does not receive any of the triples moving through the script.
It appears that everything is dropped from the data moving through the
script if the IterateOverSelect module does not execute at least once.
Shouldn't the next module receive all triples that went into the
IterateOverSelect module?
--------------------------------
OUTLINED EXAMPLE:
The body of my IterateOverSelect module is just logging a message (it
does not manipulate the incoming triples). The select query contains
SPARQL looking for the virtual property:
SELECT ?loopTestNode
WHERE {
?loopTestNode <http://www.myURI.com/GSIVocabulary#virtual> ?
loopTestObj .
}
INPUT FILE 1:
<skos:Concept xmlns:skos="http://www.w3.org/2004/02/skos/core";
xmlns:gsi="http://www.myURI.com/GSIVocabulary"; gsi:virtual="false"
gsi:topicName="All Topics" gsi:topicOrder="0" skos:prefLabel="All
Topics 573"></skos:Concept>
INPUT FILE 2:
<skos:Concept xmlns:skos="http://www.w3.org/2004/02/skos/core";
xmlns:gsi="http://www.myURI.com/GSIVocabulary"; gsi:topicName="All
Topics" gsi:topicOrder="0" skos:prefLabel="All Topics 573"></
skos:Concept>
As you can see, the only difference between the two input XML is that
the first one contains a virtual attribute (the second file does not).
My RDF output from INPUT FILE 1 contains the expected result of the
imported skos:Concept from the XML.
However, my RDF output from INPUT FILE 2 does not contain any of the
data imported from the XML.
Thanks,
Catrina
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