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

Example 86 with Query

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

the class QBQuadHolder method getQuads.

@Override
public ExtendedIterator<Quad> getQuads() {
    Query q = qb.build();
    QuadIteratorBuilder builder = new QuadIteratorBuilder(defaultGraphName);
    q.getQueryPattern().visit(builder);
    return builder.iter;
}

Example 87 with Query

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

the class QuadIteratorBuilder method visit.

@Override
public void visit(ElementSubQuery el) {
    Query q = el.getQuery();
    q.getQueryPattern().visit(this);
}

Example 88 with Query

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

the class WhereClauseTest method testBindStringVar.

@ContractTest
public void testBindStringVar() throws ParseException {
    Var v = Var.alloc("foo");
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addBind("rand()", v);
    assertContainsRegex(OPEN_CURLY + BIND + OPEN_PAREN + "rand\\(\\)" + SPACE + "AS" + SPACE + var("foo") + CLOSE_PAREN + CLOSE_CURLY, builder.buildString());
    builder.setVar(v, NodeFactory.createURI("three"));
    Query q = builder.build();
    ElementGroup eg = (ElementGroup) q.getQueryPattern();
    List<Element> lst = eg.getElements();
    assertEquals("Should only be one element", 1, lst.size());
    assertTrue("Should have an ElementTriplesBlock", lst.get(0) instanceof ElementTriplesBlock);
    ElementTriplesBlock etb = (ElementTriplesBlock) lst.get(0);
    assertTrue("ElementGroup should be empty", etb.isEmpty());
}

Example 89 with Query

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

the class WhereClauseTest method testAddOptionalGroupPattern.

@ContractTest
public void testAddOptionalGroupPattern() throws ParseException {
    Var s = Var.alloc("s");
    Node q = NodeFactory.createURI("urn:q");
    Node v = NodeFactory.createURI("urn:v");
    Var x = Var.alloc("x");
    Node n123 = NodeFactory.createLiteral(LiteralLabelFactory.createTypedLiteral(123));
    SelectBuilder pattern = new SelectBuilder();
    pattern.addWhere(new Triple(s, q, n123));
    pattern.addWhere(new Triple(s, v, x));
    pattern.addFilter("?x>56");
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addOptional(pattern);
    Query expected = QueryFactory.create("SELECT * WHERE { OPTIONAL { ?s <urn:q> '123'^^<http://www.w3.org/2001/XMLSchema#int> . ?s <urn:v> ?x . FILTER(?x>56) }}");
    Assert.assertEquals(expected.getQueryPattern(), builder.build().getQueryPattern());
}

Example 90 with Query

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

the class AbstractClauseTest method getQuery.

protected static final Query getQuery(AbstractQueryBuilder<?> builder) throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
    Field f = AbstractQueryBuilder.class.getDeclaredField("query");
    f.setAccessible(true);
    return (Query) f.get(builder);
}