Examples with ResultSet org.apache.jena.query.ResultSet used on opensource projects

Example 6 with ResultSet

use of org.apache.jena.query.ResultSet in project jena by apache.

the class StoreUtils method containsGraph.

public static boolean containsGraph(Store store, Node graphNode) {
    String qs = "SELECT * { GRAPH " + FmtUtils.stringForNode(graphNode) + " { ?s ?p ?o }} LIMIT 1";
    Dataset ds = SDBFactory.connectDataset(store);
    try (QueryExecution qExec = QueryExecutionFactory.create(qs, ds)) {
        ResultSet rs = qExec.execSelect();
        return rs.hasNext();
    }
}

Example 7 with ResultSet

use of org.apache.jena.query.ResultSet in project jena by apache.

the class TestSolverTDB method solve_02.

@Test
public void solve_02() {
    ResultSet rs1 = exec("(bgp (:s :p :o2))", graph);
    ResultSet rs2 = results("empty");
    equals(rs1, rs2);
}

Example 8 with ResultSet

use of org.apache.jena.query.ResultSet in project jena by apache.

the class TestSolverTDB method solve_04.

@Test
public void solve_04() {
    // Below everything.
    ResultSet rs1 = exec("(bgp (:a :p :a))", graph);
    ResultSet rs2 = results("empty");
    equals(rs1, rs2);
}

Example 9 with ResultSet

use of org.apache.jena.query.ResultSet in project jena by apache.

the class TestMultipleEmbedded method multiple_04.

// Two servers, one dataset under two names.
@Test
public void multiple_04() {
    DatasetGraph dsg = dataset();
    int port1 = FusekiLib.choosePort();
    FusekiEmbeddedServer server1 = FusekiEmbeddedServer.create().setPort(port1).add("/ds1", dsg).build().start();
    Txn.executeWrite(dsg, () -> dsg.add(q1));
    int port2 = FusekiLib.choosePort();
    FusekiEmbeddedServer server2 = FusekiEmbeddedServer.create().setPort(port2).add("/ds2", dsg).build().start();
    Txn.executeWrite(dsg, () -> dsg.add(q2));
    query("http://localhost:" + port1 + "/ds1", "SELECT * {?s ?p ?o}", qExec -> {
        ResultSet rs = qExec.execSelect();
        int x = ResultSetFormatter.consume(rs);
        assertEquals(2, x);
    });
    query("http://localhost:" + port2 + "/ds2", "SELECT * {?s ?p ?o}", qExec -> {
        ResultSet rs = qExec.execSelect();
        int x = ResultSetFormatter.consume(rs);
        assertEquals(2, x);
    });
    server1.stop();
    server2.stop();
}

Example 10 with ResultSet

use of org.apache.jena.query.ResultSet in project jena by apache.

the class TestEmbeddedFuseki method embedded_01.

// Test - build on default port. 
@Test
public void embedded_01() {
    DatasetGraph dsg = dataset();
    // Default port.
    int port = 3330;
    FusekiEmbeddedServer server = FusekiEmbeddedServer.create().add("/ds", dsg).build();
    assertTrue(server.getDataAccessPointRegistry().isRegistered("/ds"));
    server.start();
    query("http://localhost:" + port + "/ds/query", "SELECT * { ?s ?p ?o}", qExec -> {
        ResultSet rs = qExec.execSelect();
        assertFalse(rs.hasNext());
    });
    server.stop();
}