Kevin; Using the xml:
<Environment hasLatitudeDegrees="50"></Environment>
I believe your query just needs a slight modification:
SELECT ?subject ?val
WHERE {
?subject a :Environment .
?subject :hasLatitudeDegrees-Environment ?val .
}
In SPARQLMotion, be sure to use the debug button on the
ConvertXMLtoRDF module and Infer the result triples temporarily. You
will then find that the xml above creates the following triples
(amongst others) to convert XML to RDF:
:Environment rdf:type owl:Class .
:Environment sxml:element "Environment" .
:r rdf:type :Environment .
:r :hasLatitudeDegrees-Environment "50" .
:hasLatitudeDegrees-Environment sxml:attribute
"hasLatitudeDegrees" .
:hasLatitudeDegrees-Environment rdf:type owl:DatatypeProperty ;
Where :r is an instance of the :Environment element(class). The key
here is that XML allows the same attribute names on an element, and
therefore Semantic XML needs a way to name them uniquely - using the
pattern [attrib_name]-[elem_name]. You can, of course, use an
ApplyConstruct module to rename as desired.
The pizzaProcess.xml file in the Help (Semantic XML) files does show
this, and is a good example to start with.
-- Scott
On Oct 5, 6:55 pm, Kevin Matthews <[email protected]> wrote:
> OK, I've been playing with this all day to no avail.
>
> Going back to my <Environment> example, I have tried using the
> following 2 xml string as input to ConvertXMLtoRDF:
>
> <Environment name="test"><hasLatitudeDegrees>50</hasLatitudeDegrees></
> Environment>
> ....and...
> <Environment hasLatitudeDegrees="50"></Environment>
>
> I'm not sure which one is correct, but neither worked. Again, my end
> goal is to be able to run the following query and get back
> (<Environment>, 50).
>
> SELECT ?subject ?val
> WHERE {
> ?subject a :Environment .
> ?subject :hasLatitudeDegrees ?val .
>
> }
>
> Currently, when I use either of the 2 xml strings above as input to
> ConvertXMLtoRDF, a (<Environment hasLatitudeDegrees="50">, rdf:type,
> Environment) triple is properly created. I believe this is because I
> added sxml:element="Environment" to the annotations of my Environment
> class.
>
> My problem is that I cannot seem to create the hasLatitudeDegrees
> triple as a type :hasLatitudeDegrees. I also cannot get the importer
> to create the association of the new Environment with the new
> hasLatitudeDegrees instance.
>
> Where exactly do I need to add sxml:element or sxml:attribute
> annotations? The Environment class? hasLatitudeDegrees
> datatypeProperty? What should their values be? Strings? Or class
> references? (I have added sxml:element and sxml:attribute to the
> Environment and hasLatitudeDegrees property, and tried every possible
> combination of moving them around as well).
>
> How do I get the importer to use hasLatitudeDegrees as a predicate
> instead of a subject or object? Currenlty, the Environment and
> hasLatitudeDegrees triples are related by a composite:child
> predicate.
>
> If there is an example of this anywhere, I would greatly appreciate
> it. The documentation was helpful, but it did not explain how to
> create a parent class with a child relation containing a give value.
>
> Thanks,
>
> Kevin
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