- From: Alberto Reggiori <alberto.reggiori@jrc.it>
- Date: 2001年6月10日 16:39:13 +0200
- To: www-rdf-comments@w3.org
- Message-ID: <3B238691.B350D985@jrc.it>
Hello, SiRPAC seems to generate literal values for the subject property when creating the 4 new triples of the reification of a statement. By compiling http://etbdemo.jrc.it/xml/rdf/broken.xml using the latest java build at http://www.w3.org/RDF/Implementations/SiRPAC/SiRPAC-1.17.jar I get the following: triple("http://etbdemo.jrc.it/xml/rdf/broken.xml#genid32", "http://www.w3.org/1999/02/22-rdf-syntax-ns#subject", literal("http://etbdemo.jrc.it/xml/rdf/broken.xml#genid1")) The W3C spec states: [RDF M&S Section 4.1] subject The subject property identifies the resource being described by the modeled statement; that is, the value of the subject property is the resource about which the original statement was made (in our example, http://www.w3.org/Home/Lassila). Anyway, your on-line demo at http://www.w3.org/RDF/Implementations/SiRPAC/ seems generating the right resource node (even if it claims to use the 1.17 version above). The problem seems to be in reify() method when call addTriple() with a literal as object instead of a resource. The following patch fixed the problem for me --- SiRPAC.java Sun Jun 10 16:19:56 2001 +++ SiRPAC.java-fixed Sun Jun 10 16:20:43 2001 @@ -1970,7 +1970,8 @@ addTriple (createResource(sNamespace + SUBJECT), createResource(sNodeID), - createLiteral(( subject.toString().length() == 0 ? source() : subject.toString()))); + //fixed by AR 2001年06月10日 + createResource(( subject.toString().length() == 0 ? source() : subject.toString()))); addTriple (createResource(sNamespace + OBJECT), createResource(sNodeID), The right output triple is then generated triple("http://etbdemo.jrc.it/xml/rdf/broken.xml#genid32", "http://www.w3.org/1999/02/22-rdf-syntax-ns#subject", "http://etbdemo.jrc.it/xml/rdf/broken.xml#genid1") regards Alberto
Received on Sunday, 10 June 2001 10:34:32 UTC