Hi,
The InfModelF does, among other things, type inference.
If a rel b
and rel range c
it infers:
b type c.
This is nice. However, when I have a literal property
a rel 'abc'
and rel range http://www.w3.org/2001/XMLSchema#string
it will infer:
'abc' type http://www.w3.org/2001/XMLSchema#string
which obviously won't work.
The error is given as:
Fatal error: RDFAPI error (class: Statement; method: new): Resource
expected as subject. in
d:\Inetpub\wwwroot\emblems\lab\rdfapi091\rdfapi-php\api\model\Statement.php
on line 66
I may of course be doing something wrong. Could someone help shed light
on this?
Thanks in advance,
Peter Boot
My very simple PHP script:
<?php
define("RDFAPI_INCLUDE_DIR",
"d:/inetpub/wwwroot/emblems/lab/rdfapi091/rdfapi-php/api/");
include(RDFAPI_INCLUDE_DIR . "RdfAPI.php");
$im = ModelFactory::getInfModelF();
$im->load("http://emblems.let.uu.nl/emblems/lab/dse/rdf/test.rdf");
?>
My OWL and RDF data:
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF
xml:base="http://emblems.let.uu.nl/emblems/lab/dse/rdf/test.rdf"
xmlns:test="http://emblems.let.uu.nl/emblems/lab/dse/rdf/test.rdf#"
xmlns:owl = "http://www.w3.org/2002/07/owl#"
xmlns:rdf = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs= "http://www.w3.org/2000/01/rdf-schema#"
xmlns:xsd = "http://www.w3.org/2001/XMLSchema#">
<owl:Ontology rdf:about="">
<rdfs:comment>Test ontology </rdfs:comment>
</owl:Ontology>
<owl:Class rdf:ID="MyClass">
</owl:Class>
<owl:DatatypeProperty rdf:ID="StringProp">
<rdfs:domain rdf:resource="#MyClass"/>
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
</owl:DatatypeProperty>
<test:MyClass rdf:ID="myid" test:StringProp="a string">
</test:MyClass>
</rdf:RDF>
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