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

Example 6 with QuerySolutionMap

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

the class EvalSparql method parametersToPreBinding.

private static QuerySolutionMap parametersToPreBinding(Model data, Node node, List<Parameter> params) {
    QuerySolutionMap qsm = new QuerySolutionMap();
    params.forEach(param -> {
        Node path = param.getParameterPath();
        // Full path not supported (needs string-syntax rewrite)
        Node v = G.getOneSP(data.getGraph(), node, path);
        qsm.add(param.getSparqlName(), ModelUtils.convertGraphNodeToRDFNode(v, data));
    });
    return qsm;
}

Example 7 with QuerySolutionMap

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

the class TestAPI method testInitialBindings7.

@Test
public void testInitialBindings7() {
    // JENA-1354
    Query query = QueryFactory.create("SELECT DISTINCT ?x WHERE {}");
    Dataset ds = DatasetFactory.create();
    QuerySolutionMap initialBinding = new QuerySolutionMap();
    initialBinding.add("a", ResourceFactory.createTypedLiteral(Boolean.TRUE));
    try (QueryExecution qexec = QueryExecutionFactory.create(query, ds, initialBinding)) {
        assertFalse(qexec.execSelect().next().contains("a"));
    }
}

Example 8 with QuerySolutionMap

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

the class TestAPI method testInitialBindings0.

@Test
public void testInitialBindings0() {
    QuerySolutionMap smap1 = new QuerySolutionMap();
    QuerySolutionMap smap2 = new QuerySolutionMap();
    smap1.add("o", m.createLiteral("y1"));
    smap2.addAll(smap1);
    assertTrue(smap2.contains("o"));
    smap2.clear();
    assertFalse(smap2.contains("o"));
    assertTrue(smap1.contains("o"));
    QuerySolutionMap smap3 = new QuerySolutionMap();
    smap2.addAll((QuerySolution) smap1);
    assertTrue(smap2.contains("o"));
}

Example 9 with QuerySolutionMap

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

the class TestAPI method testInitialBindings3.

@Test
public void testInitialBindings3() {
    QuerySolutionMap init = new QuerySolutionMap();
    init.add("z", m.createLiteral("zzz"));
    String qs = "SELECT * {?s ?p 'x1'}";
    try (QueryExecution qExec = QueryExecution.model(m).query(qs).initialBinding(init).build()) {
        ResultSet rs = qExec.execSelect();
        QuerySolution qSoln = rs.nextSolution();
        assertTrue("Initial setting not set correctly now", qSoln.getLiteral("z").getLexicalForm().equals("zzz"));
    }
}

Example 10 with QuerySolutionMap

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

the class TestAPI method testInitialBindings6.

/**
 * Initial binding substitution happens before optimization so initial bindings can make a semantically always false query into one that can return true
 */
@Test
public void testInitialBindings6() {
    // From JENA-500
    Query query = QueryFactory.create("ASK\n" + "WHERE {\n" + "    FILTER (?a = ?b) .\n" + "}");
    // System.out.println(Algebra.optimize(Algebra.compile(query)).toString());
    Model model = ModelFactory.createDefaultModel();
    model.add(OWL.Thing, RDF.type, OWL.Class);
    QuerySolutionMap initialBinding = new QuerySolutionMap();
    initialBinding.add("a", ResourceFactory.createTypedLiteral(Boolean.TRUE));
    initialBinding.add("b", ResourceFactory.createTypedLiteral(Boolean.TRUE));
    try (QueryExecution qExec = QueryExecution.model(model).query(query).initialBinding(initialBinding).build()) {
        boolean result = qExec.execAsk();
        assertTrue(result);
    }
}