Examples with ElementPathBlock org.apache.jena.sparql.syntax.ElementPathBlock used on opensource projects

Example 71 with ElementPathBlock

use of org.apache.jena.sparql.syntax.ElementPathBlock in project jena by apache.

the class WhereHandlerTest method testListInTriple.

@Test
public void testListInTriple() {
    handler.addWhere(new TriplePath(new Triple(handler.list("<one>", "?var", "'three'"), ResourceFactory.createResource("foo").asNode(), ResourceFactory.createResource("bar").asNode())));
    handler.build();
    P_Link first = new P_Link(RDF.first.asNode());
    P_Link rest = new P_Link(RDF.rest.asNode());
    Node n = NodeFactory.createURI("foo");
    P_Link foo = new P_Link(n);
    // ElementPathBlock epb = (ElementPathBlock) query.getQueryPattern();
    ElementPathBlock epb = new ElementPathBlock();
    Node list = NodeFactory.createBlankNode();
    Node s = list;
    epb.addTriple(new TriplePath(s, first, NodeFactory.createURI("one")));
    Node o = NodeFactory.createBlankNode();
    epb.addTriple(new TriplePath(s, rest, o));
    s = o;
    epb.addTriple(new TriplePath(s, first, Var.alloc("var")));
    o = NodeFactory.createBlankNode();
    epb.addTriple(new TriplePath(s, rest, o));
    s = o;
    epb.addTriple(new TriplePath(s, first, NodeFactory.createLiteral("three")));
    epb.addTriple(new TriplePath(s, rest, RDF.nil.asNode()));
    epb.addTriple(new TriplePath(list, foo, NodeFactory.createURI("bar")));
    WhereValidator visitor = new WhereValidator(epb);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 72 with ElementPathBlock

use of org.apache.jena.sparql.syntax.ElementPathBlock in project jena by apache.

the class WhereHandlerTest method testAddWhereObjectsWithPath.

@Test
public void testAddWhereObjectsWithPath() {
    PrefixMapping pmap = new PrefixMappingImpl();
    pmap.setNsPrefix("ts", "urn:test:");
    Path path = PathParser.parse("ts:two/ts:dos", pmap);
    handler.addWhere(new TriplePath(NodeFactory.createURI("one"), path, ResourceFactory.createLangLiteral("three", "en-US").asNode()));
    handler.build();
    TriplePath tp = new TriplePath(NodeFactory.createURI("one"), path, ResourceFactory.createLangLiteral("three", "en-US").asNode());
    ElementPathBlock epb = new ElementPathBlock();
    epb.addTriple(tp);
    WhereValidator wv = new WhereValidator(epb);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 73 with ElementPathBlock

use of org.apache.jena.sparql.syntax.ElementPathBlock in project jena by apache.

the class WhereHandlerTest method testAddUnionToExisting.

@Test
public void testAddUnionToExisting() {
    handler.addWhere(new TriplePath(new Triple(NodeFactory.createURI("s"), NodeFactory.createURI("p"), NodeFactory.createURI("o"))));
    SelectBuilder sb = new SelectBuilder();
    sb.addWhere(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three")));
    handler.addUnion(sb);
    handler.build();
    TriplePath tp1 = new TriplePath(new Triple(NodeFactory.createURI("s"), NodeFactory.createURI("p"), NodeFactory.createURI("o")));
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(tp1);
    TriplePath tp2 = new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three")));
    ElementPathBlock epb2 = new ElementPathBlock();
    epb2.addTriple(tp2);
    ElementUnion union = new ElementUnion();
    union.addElement(epb1);
    union.addElement(epb2);
    WhereValidator visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 74 with ElementPathBlock

use of org.apache.jena.sparql.syntax.ElementPathBlock in project jena by apache.

the class WhereHandlerTest method testSetVarsInOptional.

@Test
public void testSetVarsInOptional() {
    Var v = Var.alloc("v");
    handler.addOptional(new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), v)));
    handler.build();
    TriplePath tp = new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), v));
    ElementPathBlock epb = new ElementPathBlock();
    epb.addTriple(tp);
    ElementOptional opt = new ElementOptional(epb);
    WhereValidator wv = new WhereValidator(opt);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
    Map<Var, Node> values = new HashMap<>();
    values.put(v, NodeFactory.createURI("three"));
    handler.setVars(values);
    handler.build();
    tp = new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three")));
    epb = new ElementPathBlock();
    epb.addTriple(tp);
    opt = new ElementOptional(epb);
    wv = new WhereValidator(opt);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 75 with ElementPathBlock

use of org.apache.jena.sparql.syntax.ElementPathBlock in project jena by apache.

the class ElementTransformSubst method transform.

@Override
public Element transform(ElementPathBlock el) {
    ElementPathBlock epb = new ElementPathBlock();
    boolean changed = false;
    for (TriplePath p : el.getPattern()) {
        TriplePath p2 = transform(p);
        changed = changed || p != p2;
        epb.addTriplePath(p2);
    }
    if (changed)
        return epb;
    return el;
}