Examples with Quad org.apache.jena.sparql.core.Quad used on opensource projects

Example 6 with Quad

use of org.apache.jena.sparql.core.Quad in project jena by apache.

the class TestUpdateOperations method delete_insert_where_01.

// Check constant and template quads 
@Test
public void delete_insert_where_01() {
    DatasetGraph dsg0 = DatasetGraphFactory.create();
    UpdateRequest req = UpdateFactory.create("INSERT DATA { <x> <p> 2 . <z> <q> 2 . <z> <q> 3 . }");
    UpdateAction.execute(req, dsg0);
    assertEquals(3, dsg0.getDefaultGraph().size());
    AtomicLong counterIns = new AtomicLong(0);
    AtomicLong counterDel = new AtomicLong(0);
    DatasetGraph dsg = new DatasetGraphWrapper(dsg0) {

        @Override
        public void add(Quad quad) {
            counterIns.incrementAndGet();
            super.add(quad);
        }

        @Override
        public void delete(Quad quad) {
            counterDel.incrementAndGet();
            super.delete(quad);
        }
    };
    // WHERE clause doubles the effect.
    String s = "DELETE { ?x <p> 2 . <z> <q> 2 } INSERT { ?x <p> 1 . <x> <q> 1  } WHERE { ?x <p> ?o {} UNION {} }";
    req = UpdateFactory.create(s);
    UpdateAction.execute(req, dsg);
    // 3 : 1 constant, 2 from template.
    assertEquals(3, counterIns.get());
    assertEquals(3, counterIns.get());
    assertEquals(3, dsg.getDefaultGraph().size());
}

Example 7 with Quad

use of org.apache.jena.sparql.core.Quad in project jena by apache.

the class AbstractTestUpdateGraph method testModify1.

@Test
public void testModify1() {
    DatasetGraph gStore = getEmptyDatasetGraph();
    defaultGraphData(gStore, data2());
    namedGraphData(gStore, graphIRI, Factory.createDefaultGraph());
    UpdateModify modify = new UpdateModify();
    Element element = QueryFactory.createElement("{ ?s <http://example/p> ?o }");
    modify.setElement(element);
    modify.getInsertAcc().addQuad(new Quad(graphIRI, triple1));
    modify.getDeleteAcc().addTriple(SSE.parseTriple("(?s <http://example/p> ?o)"));
    modify.getDeleteAcc().addQuad(SSE.parseQuad("(<http://example/graph> ?s <http://example/p> ?o)"));
    UpdateAction.execute(modify, gStore);
    assertFalse(graphEmpty(gStore.getGraph(graphIRI)));
    assertTrue(graphEmpty(gStore.getDefaultGraph()));
    assertTrue(graphContains(gStore.getGraph(graphIRI), triple1));
}

Example 8 with Quad

use of org.apache.jena.sparql.core.Quad in project jena by apache.

the class AbstractJenaConnectionTests method connection_prepared_statement_select_03.

/**
     * Tests use of prepared statements
     * 
     * @throws SQLException
     */
@Test
public void connection_prepared_statement_select_03() throws SQLException {
    // Prepare a dataset
    Dataset ds = DatasetFactory.createTxnMem();
    ds.asDatasetGraph().add(new Quad(NodeFactory.createURI("http://example/graph"), NodeFactory.createURI("http://example/subject"), NodeFactory.createURI("http://example/predicate"), NodeFactory.createLiteral("value")));
    // Work with the connection
    JenaConnection conn = this.getConnection(ds);
    conn.setJdbcCompatibilityLevel(JdbcCompatibility.HIGH);
    PreparedStatement stmt = conn.prepareStatement("SELECT * WHERE { GRAPH ?g { ?s ?p ? } }");
    ParameterMetaData metadata = stmt.getParameterMetaData();
    Assert.assertEquals(1, metadata.getParameterCount());
    stmt.setNString(1, "value");
    ResultSet rset = stmt.executeQuery();
    Assert.assertNotNull(rset);
    Assert.assertFalse(rset.isClosed());
    Assert.assertTrue(rset.isBeforeFirst());
    // Check result set metadata
    checkSelectMetadata(rset, 3);
    // Should have a row
    Assert.assertTrue(rset.next());
    Assert.assertTrue(rset.isFirst());
    Assert.assertEquals(1, rset.getRow());
    // Should be no further rows
    Assert.assertFalse(rset.next());
    Assert.assertTrue(rset.isAfterLast());
    Assert.assertFalse(rset.isClosed());
    // Close things
    rset.close();
    Assert.assertTrue(rset.isClosed());
    stmt.close();
    Assert.assertTrue(stmt.isClosed());
    conn.close();
    Assert.assertTrue(conn.isClosed());
}

Example 9 with Quad

use of org.apache.jena.sparql.core.Quad in project jena by apache.

the class AbstractJenaConnectionTests method connection_prepared_statement_select_02.

/**
     * Tests use of prepared statements
     * 
     * @throws SQLException
     */
@Test
public void connection_prepared_statement_select_02() throws SQLException {
    // Prepare a dataset
    Dataset ds = DatasetFactory.createTxnMem();
    ds.asDatasetGraph().add(new Quad(NodeFactory.createURI("http://example/graph"), NodeFactory.createURI("http://example/subject"), NodeFactory.createURI("http://example/predicate"), NodeFactory.createLiteral("value")));
    // Work with the connection
    JenaConnection conn = this.getConnection(ds);
    conn.setJdbcCompatibilityLevel(JdbcCompatibility.HIGH);
    PreparedStatement stmt = conn.prepareStatement("SELECT * WHERE { GRAPH ?g { ?s ?p ? } }");
    ParameterMetaData metadata = stmt.getParameterMetaData();
    Assert.assertEquals(1, metadata.getParameterCount());
    stmt.setString(1, "value");
    ResultSet rset = stmt.executeQuery();
    Assert.assertNotNull(rset);
    Assert.assertFalse(rset.isClosed());
    Assert.assertTrue(rset.isBeforeFirst());
    // Check result set metadata
    checkSelectMetadata(rset, 3);
    // Should have a row
    Assert.assertTrue(rset.next());
    Assert.assertTrue(rset.isFirst());
    Assert.assertEquals(1, rset.getRow());
    // Should be no further rows
    Assert.assertFalse(rset.next());
    Assert.assertTrue(rset.isAfterLast());
    Assert.assertFalse(rset.isClosed());
    // Close things
    rset.close();
    Assert.assertTrue(rset.isClosed());
    stmt.close();
    Assert.assertTrue(stmt.isClosed());
    conn.close();
    Assert.assertTrue(conn.isClosed());
}

Example 10 with Quad

use of org.apache.jena.sparql.core.Quad in project jena by apache.

the class AbstractJenaConnectionTests method connection_prepared_statement_select_01.

/**
     * Tests use of prepared statements
     * 
     * @throws SQLException
     * @throws MalformedURLException
     */
@Test
public void connection_prepared_statement_select_01() throws SQLException, MalformedURLException {
    // Prepare a dataset
    Dataset ds = DatasetFactory.createTxnMem();
    ds.asDatasetGraph().add(new Quad(NodeFactory.createURI("http://example/graph"), NodeFactory.createURI("http://example/subject"), NodeFactory.createURI("http://example/predicate"), NodeFactory.createURI("http://example/object")));
    // Work with the connection
    JenaConnection conn = this.getConnection(ds);
    conn.setJdbcCompatibilityLevel(JdbcCompatibility.HIGH);
    PreparedStatement stmt = conn.prepareStatement("SELECT * WHERE { GRAPH ? { ?s ?p ?o } }");
    ParameterMetaData metadata = stmt.getParameterMetaData();
    Assert.assertEquals(1, metadata.getParameterCount());
    stmt.setURL(1, new URL("http://example/graph"));
    ResultSet rset = stmt.executeQuery();
    Assert.assertNotNull(rset);
    Assert.assertFalse(rset.isClosed());
    Assert.assertTrue(rset.isBeforeFirst());
    // Check result set metadata
    checkSelectMetadata(rset, 3);
    // Should have a row
    Assert.assertTrue(rset.next());
    Assert.assertTrue(rset.isFirst());
    Assert.assertEquals(1, rset.getRow());
    // Should be no further rows
    Assert.assertFalse(rset.next());
    Assert.assertTrue(rset.isAfterLast());
    Assert.assertFalse(rset.isClosed());
    // Close things
    rset.close();
    Assert.assertTrue(rset.isClosed());
    stmt.close();
    Assert.assertTrue(stmt.isClosed());
    conn.close();
    Assert.assertTrue(conn.isClosed());
}