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

Example 41 with ElementPathBlock

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

the class WhereHandlerTest method testAddMinus.

@Test
public void testAddMinus() {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addWhere("<one>", "<two>", "three");
    handler.addMinus(sb);
    handler.build();
    ElementPathBlock epb = new ElementPathBlock();
    ElementMinus minus = new ElementMinus(epb);
    epb.addTriplePath(new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createLiteral("three"))));
    WhereValidator visitor = new WhereValidator(minus);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 42 with ElementPathBlock

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

the class WhereHandlerTest method testAddUnionWithVar.

@Test
public void testAddUnionWithVar() {
    Triple t1 = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three"));
    Triple t2 = new Triple(NodeFactory.createURI("uno"), NodeFactory.createURI("dos"), NodeFactory.createURI("tres"));
    SelectBuilder sb = new SelectBuilder().addVar("x").addWhere(t1);
    handler.addUnion(sb);
    SelectBuilder sb2 = new SelectBuilder().addWhere(t2);
    handler.addUnion(sb2);
    handler.build();
    ElementUnion union = new ElementUnion();
    Query q = new Query();
    q.setQuerySelectType();
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(t1);
    q.setQueryPattern(epb1);
    q.addProjectVars(Arrays.asList(Var.alloc("x")));
    ElementSubQuery sq = new ElementSubQuery(q);
    union.addElement(sq);
    ElementPathBlock epb2 = new ElementPathBlock();
    epb2.addTriple(t2);
    union.addElement(epb2);
    WhereValidator visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 43 with ElementPathBlock

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

the class WhereHandlerTest method testList.

@Test
public void testList() {
    Node n = handler.list("<one>", "?var", "'three'");
    Node one = NodeFactory.createURI("one");
    Node two = Var.alloc("var").asNode();
    Node three = NodeFactory.createLiteral("three");
    ElementPathBlock epb = new ElementPathBlock();
    Node firstObject = NodeFactory.createBlankNode();
    Node secondObject = NodeFactory.createBlankNode();
    Node thirdObject = NodeFactory.createBlankNode();
    epb.addTriplePath(new TriplePath(new Triple(firstObject, RDF.first.asNode(), one)));
    epb.addTriplePath(new TriplePath(new Triple(firstObject, RDF.rest.asNode(), secondObject)));
    epb.addTriplePath(new TriplePath(new Triple(secondObject, RDF.first.asNode(), two)));
    epb.addTriplePath(new TriplePath(new Triple(secondObject, RDF.rest.asNode(), thirdObject)));
    epb.addTriplePath(new TriplePath(new Triple(thirdObject, RDF.first.asNode(), three)));
    epb.addTriplePath(new TriplePath(new Triple(thirdObject, RDF.rest.asNode(), RDF.nil.asNode())));
    WhereValidator visitor = new WhereValidator(epb);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    assertTrue(n.isBlank());
}

Example 44 with ElementPathBlock

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

the class WhereHandlerTest method testAddSubQueryWithVars.

@Test
public void testAddSubQueryWithVars() {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addVar("?x").addWhere("<one>", "<two>", "three");
    handler.addSubQuery(sb);
    handler.build();
    Triple t1 = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createLiteral("three"));
    TriplePath tp = new TriplePath(t1);
    ElementPathBlock epb = new ElementPathBlock();
    epb.addTriple(tp);
    Query q = new Query();
    q.addResultVar("x");
    q.setQuerySelectType();
    q.setQueryPattern(epb);
    ElementSubQuery esq = new ElementSubQuery(q);
    WhereValidator wv = new WhereValidator(esq);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 45 with ElementPathBlock

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

the class WhereHandlerTest method testAddUnionToExistingWithVar.

@Test
public void testAddUnionToExistingWithVar() {
    handler.addWhere(new TriplePath(new Triple(NodeFactory.createURI("s"), NodeFactory.createURI("p"), NodeFactory.createURI("o"))));
    SelectBuilder sb = new SelectBuilder().addVar("x").addWhere(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three")));
    handler.addUnion(sb);
    handler.build();
    Query q = new Query();
    q.setQuerySelectType();
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three")));
    q.setQueryPattern(epb1);
    q.addProjectVars(Arrays.asList(Var.alloc("x")));
    ElementSubQuery sq = new ElementSubQuery(q);
    ElementPathBlock epb2 = new ElementPathBlock();
    epb2.addTriple(new Triple(NodeFactory.createURI("s"), NodeFactory.createURI("p"), NodeFactory.createURI("o")));
    ElementUnion union = new ElementUnion();
    union.addElement(epb2);
    union.addElement(sq);
    WhereValidator visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}