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/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2012 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
//package virtuoso.jena.driver;
import com.hp.hpl.jena.query.*;
import com.hp.hpl.jena.rdf.model.RDFNode;
import virtuoso.jena.driver.*;
public class VirtuosoSPARQLExample1 {
/**
* Executes a SPARQL query against a virtuoso url and prints results.
*/
public static void main(String[] args) {
String url;
if(args.length == 0)
url = "jdbc:virtuoso://localhost:1111";
else
url = args[0];
/* STEP 1 */
VirtGraph set = new VirtGraph (url, "dba", "dba");
/* STEP 2 */
/* STEP 3 */
/* Select all data in virtuoso */
Query sparql = QueryFactory.create("SELECT * WHERE { GRAPH ?graph { ?s ?p ?o } } limit 100");
/* STEP 4 */
QueryExecution vqe = VirtuosoQueryExecutionFactory.create (sparql, set);
ResultSet results = vqe.execSelect();
while (results.hasNext()) {
QuerySolution result = results.nextSolution();
RDFNode graph = result.get("graph");
RDFNode s = result.get("s");
RDFNode p = result.get("p");
RDFNode o = result.get("o");
System.out.println(graph + " { " + s + " " + p + " " + o + " . }");
}
}
}
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