Comments (6)
Forget it, another simple mistake. It has to be rr:class
instead of rr:Class
🤦♂
from rmlmapper-java.
Based on your feedback we added a tutorial to our website https://rml.io/docs/rml/tutorials/xml/ 😃
from rmlmapper-java.
Thanks for you issue. No RDF is generated because there is no eventName
tag in the Exhibition
. I added it below
<?xml version = "1.0"?>
<Events>
<Exhibition id="398">
<eventName>Test</eventName>
<Venue>STAM</Venue>
<Location>
<lat>51.076891</lat>
<long>3.717222</long>
</Location>
</Exhibition>
<Exhibition id="428">
<eventName>Test 2</eventName>
<Venue>ABC</Venue>
<Location>
<lat>55.076891</lat>
<long>35.717222</long>
</Location>
</Exhibition>
</Events>
and then your RML rules work. Could you have a try on your side too?
from rmlmapper-java.
Thanks for your blazingly fast response. Sorry that was a stupid mistake on my side. Of course it couldn't work with missing <eventName>
. Now it works.
What I tried before was an even simpler mapping definition:
@prefix rr: <http://www.w3.org/ns/r2rml#>.
@prefix rml: <http://semweb.mmlab.be/ns/rml#>.
@prefix crml: <http://semweb.mmlab.be/ns/crml#>.
@prefix ql: <http://semweb.mmlab.be/ns/ql#>.
@prefix ex: <http://ex.com/>.
@base <http://example.com/base>.
<#EventMapping>
a rr:TriplesMap;
rml:logicalSource [
rml:source "./Beispiele/input.xml";
rml:referenceFormulation ql:XPath;
rml:iterator "/Events/Exhibition" ];
rr:subjectMap [
rr:template "http://ex.com/{@id}";
rr:Class ex:SomeClass
].
I expected this rule to create just the individuals with an rdf:type
of ex:SomeClass
. Unfortunately, nothing gets created. Could you give me a hint why that is the case?
from rmlmapper-java.
Hey @pheyvaer,
thanks a lot. I think that's very valuable to get a quick start! Without this tutorial, it was a bit tricky to get a working example and I had to go through a lot of trial and error to create a first mapping.
from rmlmapper-java.
You're welcome. If there is anything else just let us know! 😃
from rmlmapper-java.
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