/* * (c) Copyright 2011 Epimorphics Ltd. * All rights reserved. * [See end of file] */ package reports; import com.hp.hpl.jena.query.Query; import com.hp.hpl.jena.query.QueryExecution; import com.hp.hpl.jena.query.QueryExecutionFactory; import com.hp.hpl.jena.query.QueryFactory; import com.hp.hpl.jena.query.QuerySolution; import com.hp.hpl.jena.query.ResultSet; import com.hp.hpl.jena.rdf.model.RDFNode; public class ReportDBPedia2 { // public class TestJena { public static void main(String[] args) { // http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=PREFIX+rdf%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%0D%0APREFIX+dbpedia-owl%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0ASELECT+%3Fvar+%0D%0AWHERE+{+%3Fvar+rdf%3Atype+dbpedia-owl%3ACompany+.+}&debug=on&timeout=&format=text%2Fhtml&save=display&fname= String queryString = "PREFIX rdf: " + "PREFIX dbpedia-owl: " + "SELECT ?var " + "WHERE { ?var rdf:type dbpedia-owl:Company . }"; System.out.println(queryString) ; Query query = QueryFactory.create(queryString); QueryExecution qexec = QueryExecutionFactory.sparqlService( "http://dbpedia.org/sparql", query); ResultSet rs = null; rs = qexec.execSelect(); // **** TOO EARLY //qexec.close(); while(rs.hasNext()) { QuerySolution sqs = rs.next(); RDFNode node = sqs.get("var"); System.out.println(node); } qexec.close(); } } /* * (c) Copyright 2011 Epimorphics Ltd. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */