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

Example 46 with ElementPathBlock

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

the class WhereHandlerTest method testAddOptionalWhereHandler.

@Test
public void testAddOptionalWhereHandler() {
    WhereHandler pattern = new WhereHandler(new Query());
    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));
    pattern.addWhere(new TriplePath(new Triple(s, q, n123)));
    pattern.addWhere(new TriplePath(new Triple(s, v, x)));
    handler.addOptional(pattern);
    handler.build();
    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);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 47 with ElementPathBlock

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

the class WhereHandlerTest method testAddOptionalObjects.

@Test
public void testAddOptionalObjects() {
    handler.addOptional(new TriplePath(new Triple(NodeFactory.createURI("one"), ResourceFactory.createResource("two").asNode(), ResourceFactory.createLangLiteral("three", "en-US").asNode())));
    handler.build();
    ElementPathBlock epb = new ElementPathBlock();
    ElementOptional optional = new ElementOptional(epb);
    TriplePath tp = new TriplePath(new Triple(NodeFactory.createURI("one"), ResourceFactory.createResource("two").asNode(), ResourceFactory.createLangLiteral("three", "en-US").asNode()));
    epb.addTriplePath(tp);
    WhereValidator visitor = new WhereValidator(optional);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 48 with ElementPathBlock

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

the class WhereClauseTest method addGraph_GSPO.

public void addGraph_GSPO() {
    final Node s = NodeFactory.createURI("s");
    final Node p = NodeFactory.createURI("p");
    final Node o = NodeFactory.createURI("o");
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addGraph("<g>", s, p, o);
    Query query = builder.build();
    ElementPathBlock epb = new ElementPathBlock();
    ElementNamedGraph eng = new ElementNamedGraph(NodeFactory.createURI("g"), epb);
    epb.addTriplePath(new TriplePath(new Triple(s, p, o)));
    WhereValidator visitor = new WhereValidator(eng);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 49 with ElementPathBlock

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

the class WhereClauseTest method testAddUnion.

@ContractTest
public void testAddUnion() {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addVar("?x").addWhere("<one>", "<two>", "three");
    WhereClause<?> whereClause = getProducer().newInstance();
    whereClause.getWhereHandler().addWhere(new TriplePath(Triple.ANY));
    AbstractQueryBuilder<?> builder = whereClause.addUnion(sb);
    ElementUnion union = new ElementUnion();
    ElementPathBlock epb = new ElementPathBlock();
    union.addElement(epb);
    epb.addTriple(Triple.ANY);
    Query subQuery = new Query();
    ElementSubQuery esq = new ElementSubQuery(subQuery);
    union.addElement(esq);
    epb = new ElementPathBlock();
    subQuery.setQuerySelectType();
    subQuery.addProjectVars(Arrays.asList("x"));
    subQuery.setQueryPattern(epb);
    Triple t = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createLiteral("three"));
    epb.addTriple(t);
    WhereValidator visitor = new WhereValidator(union);
    Query result = builder.build();
    result.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    assertEquals("uri", result.getPrefixMapping().getNsPrefixURI("pfx"));
}

Example 50 with ElementPathBlock

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

the class WhereClauseTest method testSetVarsInSubQuery.

@ContractTest
public void testSetVarsInSubQuery() {
    Var v = Var.alloc("v");
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addWhere("<one>", "<two>", v);
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addSubQuery(sb);
    Query subQuery = new Query();
    subQuery.setQuerySelectType();
    subQuery.setQueryResultStar(true);
    ElementSubQuery esq = new ElementSubQuery(subQuery);
    ElementPathBlock epb = new ElementPathBlock();
    subQuery.setQueryPattern(epb);
    Triple t = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createVariable("v"));
    epb.addTriple(t);
    WhereValidator visitor = new WhereValidator(esq);
    Query result = builder.build();
    result.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    builder.setVar(v, NodeFactory.createURI("three"));
    subQuery = new Query();
    subQuery.setQuerySelectType();
    subQuery.setQueryResultStar(true);
    esq = new ElementSubQuery(subQuery);
    epb = new ElementPathBlock();
    subQuery.setQueryPattern(epb);
    t = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three"));
    epb.addTriple(t);
    visitor = new WhereValidator(esq);
    result = builder.build();
    result.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}