import java.util.*; import com.hp.hpl.jena.query.*; import com.hp.hpl.jena.util.iterator.ExtendedIterator; import com.hp.hpl.jena.graph.Node; import com.hp.hpl.jena.graph.Triple; import virtuoso.jena.driver.*; public class VirtuosoSPARQLExample5 { public static void main(String[] args) { String url; if(args.length == 0) url = "jdbc:virtuoso://localhost:1111"; else url = args[0]; Node foo1 = Node.createURI("http://example.org/#foo1"); Node bar1 = Node.createURI("http://example.org/#bar1"); Node baz1 = Node.createURI("http://example.org/#baz1"); Node foo2 = Node.createURI("http://example.org/#foo2"); Node bar2 = Node.createURI("http://example.org/#bar2"); Node baz2 = Node.createURI("http://example.org/#baz2"); Node foo3 = Node.createURI("http://example.org/#foo3"); Node bar3 = Node.createURI("http://example.org/#bar3"); Node baz3 = Node.createURI("http://example.org/#baz3"); VirtGraph graph = new VirtGraph ("Example5", url, "dba", "dba"); graph.clear (); System.out.println("graph.isEmpty() = " + graph.isEmpty()); System.out.println("Add 3 triples to graph <Example5>."); graph.add(new Triple(foo1, bar1, baz1)); graph.add(new Triple(foo2, bar2, baz2)); graph.add(new Triple(foo3, bar3, baz3)); graph.add(new Triple(foo1, bar2, baz2)); graph.add(new Triple(foo1, bar3, baz3)); System.out.println("graph.isEmpty() = " + graph.isEmpty()); System.out.println("graph.getCount() = " + graph.getCount()); ExtendedIterator iter = graph.find(foo1, Node.ANY, Node.ANY); System.out.println ("\ngraph.find(foo1, Node.ANY, Node.ANY) \nResult:"); for ( ; iter.hasNext() ; ) System.out.println ((Triple) iter.next()); iter = graph.find(Node.ANY, Node.ANY, baz3); System.out.println ("\ngraph.find(Node.ANY, Node.ANY, baz3) \nResult:"); for ( ; iter.hasNext() ; ) System.out.println ((Triple) iter.next()); iter = graph.find(foo1, Node.ANY, baz3); System.out.println ("\ngraph.find(foo1, Node.ANY, baz3) \nResult:"); for ( ; iter.hasNext() ; ) System.out.println ((Triple) iter.next()); graph.clear (); } }