Examples with ProjectionElemList org.openrdf.query.algebra.ProjectionElemList used on opensource projects

Example 16 with ProjectionElemList

use of org.openrdf.query.algebra.ProjectionElemList in project incubator-rya by apache.

the class ConstructConsequentVisitorTest method testNoExtension.

@Test
public void testNoExtension() {
    StatementPattern sp = new StatementPattern(new Var("x"), new Var("y"), new Var("z"));
    Projection projection = new Projection(sp, new ProjectionElemList(new ProjectionElem("x", "subject"), new ProjectionElem("y", "predicate"), new ProjectionElem("z", "object")));
    ConstructConsequentVisitor visitor = new ConstructConsequentVisitor();
    projection.visit(visitor);
    Set<StatementPattern> expected = Sets.newHashSet(new StatementPattern(s(null), p(null), o(null)));
    Assert.assertEquals(expected, visitor.getConsequents());
}

Example 17 with ProjectionElemList

use of org.openrdf.query.algebra.ProjectionElemList in project incubator-rya by apache.

the class ConstructConsequentVisitorTest method testBNode.

@Test
public void testBNode() {
    Extension extension = new Extension(new SingletonSet(), new ExtensionElem(new Var("x"), "x"), new ExtensionElem(new BNodeGenerator(), "z"));
    Projection projection = new Projection(extension, new ProjectionElemList(new ProjectionElem("x", "subject"), new ProjectionElem("y", "predicate"), new ProjectionElem("z", "object")));
    ConstructConsequentVisitor visitor = new ConstructConsequentVisitor();
    projection.visit(visitor);
    Set<StatementPattern> expected = Sets.newHashSet(new StatementPattern(s(null), p(null), anon(o(null))));
    Assert.assertEquals(expected, visitor.getConsequents());
}

Example 18 with ProjectionElemList

use of org.openrdf.query.algebra.ProjectionElemList in project incubator-rya by apache.

the class ConstructConsequentVisitorTest method testGenericSP.

@Test
public void testGenericSP() {
    Extension extension = new Extension(new SingletonSet(), new ExtensionElem(new Var("z"), "z"));
    Projection projection = new Projection(extension, new ProjectionElemList(new ProjectionElem("x", "subject"), new ProjectionElem("y", "predicate"), new ProjectionElem("z", "object")));
    ConstructConsequentVisitor visitor = new ConstructConsequentVisitor();
    projection.visit(visitor);
    Set<StatementPattern> expected = Sets.newHashSet(new StatementPattern(s(null), p(null), o(null)));
    Assert.assertEquals(expected, visitor.getConsequents());
}

Example 19 with ProjectionElemList

use of org.openrdf.query.algebra.ProjectionElemList in project incubator-rya by apache.

the class ConstructConsequentVisitorTest method testMultiProjection.

@Test
public void testMultiProjection() {
    Extension extension = new Extension(new SingletonSet(), new ExtensionElem(new ValueConstant(RDF.TYPE), "rdftype"), new ExtensionElem(new ValueConstant(OWL.OBJECTPROPERTY), "owlprop"), new ExtensionElem(new ValueConstant(OWL.EQUIVALENTCLASS), "owleqcls"), new ExtensionElem(new ValueConstant(OWL.CLASS), "owlclass"));
    MultiProjection projection = new MultiProjection(extension, Arrays.asList(new ProjectionElemList(new ProjectionElem("cls", "subject"), new ProjectionElem("rdftype", "predicate"), new ProjectionElem("owlclass", "object")), new ProjectionElemList(new ProjectionElem("prop", "subject"), new ProjectionElem("rdftype", "predicate"), new ProjectionElem("owlprop", "object")), new ProjectionElemList(new ProjectionElem("owleqcls", "predicate"), new ProjectionElem("cls", "object"))));
    ConstructConsequentVisitor visitor = new ConstructConsequentVisitor();
    projection.visit(visitor);
    Set<StatementPattern> expected = Sets.newHashSet(new StatementPattern(s(null), p(RDF.TYPE), o(OWL.CLASS)), new StatementPattern(s(null), p(RDF.TYPE), o(OWL.OBJECTPROPERTY)), new StatementPattern(s(null), p(OWL.EQUIVALENTCLASS), o(null)));
    Assert.assertEquals(expected, visitor.getConsequents());
}

Example 20 with ProjectionElemList

use of org.openrdf.query.algebra.ProjectionElemList in project incubator-rya by apache.

the class AggregationPipelineQueryNodeTest method testProject.

@Test
public void testProject() {
    final AggregationPipelineQueryNode base = new AggregationPipelineQueryNode(collection, new LinkedList<>(), Sets.newHashSet("x", "y"), Sets.newHashSet("x", "y", "opt"), HashBiMap.create());
    // Add a single projection
    ProjectionElemList singleProjection = new ProjectionElemList();
    singleProjection.addElement(new ProjectionElem("x", "z"));
    singleProjection.addElement(new ProjectionElem("y", "y"));
    List<ProjectionElemList> projections = Arrays.asList(singleProjection);
    AggregationPipelineQueryNode node = base.clone();
    boolean success = node.project(projections);
    Assert.assertTrue(success);
    Assert.assertEquals(1, node.getPipeline().size());
    Assert.assertEquals(Sets.newHashSet("z", "y"), node.getAssuredBindingNames());
    Assert.assertEquals(Sets.newHashSet("z", "y"), node.getBindingNames());
    // Add a multi-projection
    ProjectionElemList p1 = new ProjectionElemList();
    p1.addElement(new ProjectionElem("x", "solution"));
    ProjectionElemList p2 = new ProjectionElemList();
    p2.addElement(new ProjectionElem("y", "solution"));
    ProjectionElemList p3 = new ProjectionElemList();
    p3.addElement(new ProjectionElem("x", "x"));
    p3.addElement(new ProjectionElem("x", "solution"));
    p3.addElement(new ProjectionElem("y", "y"));
    projections = Arrays.asList(p1, p2, p3);
    node = base.clone();
    success = node.project(projections);
    Assert.assertTrue(success);
    Assert.assertEquals(3, node.getPipeline().size());
    Assert.assertEquals(Sets.newHashSet("solution"), node.getAssuredBindingNames());
    Assert.assertEquals(Sets.newHashSet("x", "y", "solution"), node.getBindingNames());
    // Add no projections
    node = base.clone();
    success = node.project(Arrays.asList());
    Assert.assertFalse(success);
    Assert.assertEquals(base, node);
}