Examples with QuerySolution org.apache.jena.query.QuerySolution used on opensource projects

Example 96 with QuerySolution

use of org.apache.jena.query.QuerySolution in project jena by apache.

the class GenericPropertyFunctionTest method testExecEvaluated_unbound.

/**
 * Test of execEvaluated method, of class GenericPropertyFunction.
 */
@Test
public void testExecEvaluated_unbound() {
    String query = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>\n" + "\n" + "SELECT ?subj ?obj\n" + "WHERE{\n" + "    ?subj geo:sfContains ?obj .\n" + "}ORDER by ?subj ?obj";
    List<Resource> subjects = new ArrayList<>();
    List<Resource> objects = new ArrayList<>();
    try (QueryExecution qe = QueryExecutionFactory.create(query, dataset)) {
        ResultSet rs = qe.execSelect();
        while (rs.hasNext()) {
            QuerySolution qs = rs.nextSolution();
            Resource subject = qs.getResource("subj");
            subjects.add(subject);
            Resource object = qs.getResource("obj");
            objects.add(object);
        }
    }
    // Blank nodes limit a value check.
    boolean expResult = true;
    boolean result = subjects.size() == 25 && objects.size() == 25;
    // 
    // 
    assertEquals(expResult, result);
}

Example 97 with QuerySolution

use of org.apache.jena.query.QuerySolution in project jena by apache.

the class GenericPropertyFunctionTest method testExecEvaluated_subject_bound_geometry.

/**
 * Test of execEvaluated method, of class GenericPropertyFunction.
 */
@Test
public void testExecEvaluated_subject_bound_geometry() {
    String query = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>\n" + "\n" + "SELECT ?obj\n" + "WHERE{\n" + "    BIND(<http://example.org#GeometryA> AS ?subj) \n" + "    ?subj geo:sfContains ?obj .\n" + "}ORDER by ?obj";
    List<Resource> objects = new ArrayList<>();
    try (QueryExecution qe = QueryExecutionFactory.create(query, dataset)) {
        ResultSet rs = qe.execSelect();
        while (rs.hasNext()) {
            QuerySolution qs = rs.nextSolution();
            Resource result = qs.getResource("obj");
            objects.add(result);
        }
    }
    // Blank nodes limit a value check.
    int expResult = 7;
    int result = objects.size();
    assertEquals(expResult, result);
}

Example 98 with QuerySolution

use of org.apache.jena.query.QuerySolution in project jena by apache.

the class GenericPropertyFunctionTest method testExecEvaluated_both_bound_geo.

/**
 * Test of execEvaluated method, of class GenericPropertyFunction.
 */
@Test
public void testExecEvaluated_both_bound_geo() {
    String query = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>\n" + "\n" + "SELECT ?subj ?obj\n" + "WHERE{\n" + "    BIND(<http://example.org#GeoFeatureY> AS ?subj) \n" + "    BIND(<http://example.org#GeoFeatureZ> AS ?obj) \n" + "    ?subj geo:sfContains ?obj .\n" + "}ORDER by ?subj ?obj";
    List<Resource> subjects = new ArrayList<>();
    List<Resource> objects = new ArrayList<>();
    try (QueryExecution qe = QueryExecutionFactory.create(query, dataset)) {
        ResultSet rs = qe.execSelect();
        while (rs.hasNext()) {
            QuerySolution qs = rs.nextSolution();
            Resource subject = qs.getResource("subj");
            subjects.add(subject);
            Resource object = qs.getResource("obj");
            objects.add(object);
        }
    }
    boolean expResult = true;
    List<Resource> expSubjects = Arrays.asList(GEO_FEATURE_Y);
    List<Resource> expObjects = Arrays.asList(GEO_FEATURE_Z);
    boolean result = subjects.equals(expSubjects) && objects.equals(expObjects);
    assertEquals(expResult, result);
}

Example 99 with QuerySolution

use of org.apache.jena.query.QuerySolution in project jena by apache.

the class GenericPropertyFunctionTest method testExecEvaluated_subject_bound.

/**
 * Test of execEvaluated method, of class GenericPropertyFunction.
 */
@Test
public void testExecEvaluated_subject_bound() {
    String query = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>\n" + "\n" + "SELECT ?obj\n" + "WHERE{\n" + "    BIND(<http://example.org#FeatureA> AS ?subj) \n" + "    ?subj geo:sfContains ?obj .\n" + "}ORDER by ?obj";
    List<Resource> objects = new ArrayList<>();
    try (QueryExecution qe = QueryExecutionFactory.create(query, dataset)) {
        ResultSet rs = qe.execSelect();
        while (rs.hasNext()) {
            QuerySolution qs = rs.nextSolution();
            Resource result = qs.getResource("obj");
            objects.add(result);
        }
    }
    // Blank nodes limit a value check.
    int expResult = 6;
    int result = objects.size();
    // 
    assertEquals(expResult, result);
}

Example 100 with QuerySolution

use of org.apache.jena.query.QuerySolution in project jena by apache.

the class ResultSetUtils method resultSetToStringList.

/**
 * Extracts a List filled with the binding of selectElement variable for each
 * query solution, turned into a string (URIs or lexical forms).
 * Exhausts the result set.  Create a rewindable one to use multiple times.
 * @see org.apache.jena.query.ResultSetFactory
 */
public static List<String> resultSetToStringList(ResultSet rs, String selectElement, String literalOrResource) {
    // feature suggested by James Howison
    List<String> items = new ArrayList<>();
    while (rs.hasNext()) {
        QuerySolution qs = rs.nextSolution();
        RDFNode rn = qs.get(selectElement);
        if (rn.isLiteral())
            items.add(((Literal) rn).getLexicalForm());
        else if (rn.isURIResource())
            items.add(((Resource) rn).getURI());
        else if (rn.isAnon()) {
            items.add(((Resource) rn).getId().getLabelString());
        } else
            throw new ARQException("Unknow thing in results : " + rn);
    }
    return items;
}