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

Example 1 with SelectBuilder

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

the class WhereHandlerTest method testAddSubQueryWithVarExpressions.

@Test
public void testAddSubQueryWithVarExpressions() throws ParseException {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addVar("count(*)", "?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.allocAggregate(new AggCount()));
    q.setQuerySelectType();
    q.setQueryPattern(epb);
    ElementSubQuery esq = new ElementSubQuery(q);
    WhereValidator wv = new WhereValidator(esq);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 2 with SelectBuilder

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

the class WhereHandlerTest method testAddSubQueryWithoutVars.

@Test
public void testAddSubQueryWithoutVars() {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").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.setQuerySelectType();
    q.setQueryResultStar(true);
    q.setQueryPattern(epb);
    ElementSubQuery esq = new ElementSubQuery(q);
    WhereValidator wv = new WhereValidator(esq);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 3 with SelectBuilder

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

the class WhereHandlerTest method testSetVarsInSubQuery.

@Test
public void testSetVarsInSubQuery() {
    Var v = Var.alloc("v");
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addWhere("<one>", "<two>", v);
    handler.addSubQuery(sb);
    handler.build();
    TriplePath tp = new TriplePath(new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), v));
    ElementPathBlock epb = new ElementPathBlock();
    epb.addTriple(tp);
    WhereValidator wv = new WhereValidator(epb);
    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);
    wv = new WhereValidator(epb);
    query.getQueryPattern().visit(wv);
    assertTrue(wv.matching);
}

Example 4 with SelectBuilder

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

the class WhereHandlerTest method testAddUnionOfOne.

@Test
public void testAddUnionOfOne() {
    Triple t1 = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three"));
    SelectBuilder sb = new SelectBuilder().addWhere(t1);
    handler.addUnion(sb);
    handler.build();
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(t1);
    WhereValidator visitor = new WhereValidator(epb1);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 5 with SelectBuilder

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

the class WhereHandlerTest method testSetVarsInUnion.

@Test
public void testSetVarsInUnion() {
    Var v = Var.alloc("v");
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addWhere("<one>", "<two>", v);
    handler.addUnion(sb);
    SelectBuilder sb2 = new SelectBuilder().addWhere("<uno>", "<dos>", "<tres>");
    handler.addUnion(sb2);
    handler.build();
    Node one = NodeFactory.createURI("one");
    Node two = NodeFactory.createURI("two");
    Node three = NodeFactory.createURI("three");
    Node uno = NodeFactory.createURI("uno");
    Node dos = NodeFactory.createURI("dos");
    Node tres = NodeFactory.createURI("tres");
    ElementUnion union = new ElementUnion();
    ElementPathBlock epb = new ElementPathBlock();
    Triple t = new Triple(one, two, v.asNode());
    epb.addTriple(t);
    union.addElement(epb);
    ElementPathBlock epb2 = new ElementPathBlock();
    t = new Triple(uno, dos, tres);
    epb2.addTriple(t);
    union.addElement(epb2);
    WhereValidator visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    Map<Var, Node> values = new HashMap<>();
    values.put(v, three);
    handler.setVars(values);
    handler.build();
    union = new ElementUnion();
    epb = new ElementPathBlock();
    t = new Triple(one, two, three);
    epb.addTriple(t);
    union.addElement(epb);
    epb2 = new ElementPathBlock();
    t = new Triple(uno, dos, tres);
    epb2.addTriple(t);
    union.addElement(epb2);
    visitor = new WhereValidator(union);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}