Examples with SelectBuilder org.apache.jena.arq.querybuilder.SelectBuilder used on opensource projects

Example 16 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder 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);
}

Example 17 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereHandlerTest method testMakeSubQueryFromSelectWithOutVar.

@Test
public void testMakeSubQueryFromSelectWithOutVar() {
    SelectBuilder sb = new SelectBuilder().addWhere("?x", RDF.type, RDF.Alt);
    ElementSubQuery esq = handler.makeSubQuery(sb);
    Triple t1 = new Triple(NodeFactory.createVariable("x"), RDF.type.asNode(), RDF.Alt.asNode());
    TriplePath tp = new TriplePath(t1);
    ElementPathBlock epb = new ElementPathBlock();
    epb.addTriple(tp);
    Query q = new Query();
    q.setQuerySelectType();
    q.setQueryResultStar(true);
    q.setQueryPattern(epb);
    ElementSubQuery esq2 = new ElementSubQuery(q);
    WhereValidator wv = new WhereValidator(esq2);
    esq.visit(wv);
    assertTrue(wv.matching);
}

Example 18 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereHandlerTest method testAddUnion.

@Test
public void testAddUnion() {
    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 sb1 = new SelectBuilder().addWhere(t1);
    SelectBuilder sb2 = new SelectBuilder().addWhere(t2);
    handler.addUnion(sb1);
    handler.addUnion(sb2);
    handler.build();
    ElementUnion union = new ElementUnion();
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(t1);
    union.addElement(epb1);
    ElementPathBlock epb2 = new ElementPathBlock();
    epb2.addTriple(t2);
    union.addElement(epb2);
    WhereValidator visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 19 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder 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 20 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereClauseTest method testAddOptionalGroupPattern.

@ContractTest
public void testAddOptionalGroupPattern() {
    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));
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addOptional(pattern);
    ElementPathBlock epb = new ElementPathBlock();
    ElementOptional optional = new ElementOptional(epb);
    TriplePath tp = new TriplePath(new Triple(s, q, n123));
    epb.addTriplePath(tp);
    tp = new TriplePath(new Triple(s, v, x));
    epb.addTriplePath(tp);
    WhereValidator visitor = new WhereValidator(optional);
    builder.build().getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}