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

Example 36 with ResultSet

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

the class TestResultSet method test_RS_5.

// JSON
@Test
public void test_RS_5() {
    ResultSetRewindable rs1 = new ResultSetMem();
    ByteArrayOutputStream arr = new ByteArrayOutputStream();
    ResultSetFormatter.outputAsJSON(arr, rs1);
    rs1.reset();
    ByteArrayInputStream ins = new ByteArrayInputStream(arr.toByteArray());
    ResultSet rs2 = ResultSetFactory.fromJSON(ins);
    assertTrue(ResultSetCompare.equalsByTerm(rs1, rs2));
}

Example 37 with ResultSet

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

the class TestResultSet method test_RS_cmp_2.

@Test
public void test_RS_cmp_2() {
    ResultSet rs1 = make("x", org.apache.jena.graph.NodeFactory.createURI("tag:local"));
    ResultSet rs2 = new ResultSetMem();
    assertFalse(ResultSetCompare.equalsByTerm(rs1, rs2));
}

Example 38 with ResultSet

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

the class TestResultSet method test_RS_6.

@Test
public void test_RS_6() {
    ResultSetRewindable rs1 = make2Rewindable("x", org.apache.jena.graph.NodeFactory.createURI("tag:local"));
    ByteArrayOutputStream arr = new ByteArrayOutputStream();
    ResultSetFormatter.outputAsJSON(arr, rs1);
    rs1.reset();
    ByteArrayInputStream ins = new ByteArrayInputStream(arr.toByteArray());
    // Test using the DAWG examples
    ResultSet rs2 = ResultSetFactory.fromJSON(ins);
    assertTrue(ResultSetCompare.equalsByTerm(rs1, rs2));
}

Example 39 with ResultSet

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

the class ExTDB4 method main.

public static void main(String... argv) {
    // Direct way: Make a TDB-back Jena model in the named directory.
    String directory = "MyDatabases/DB1";
    Dataset dataset = TDBFactory.createDataset(directory);
    // Potentially expensive query.
    String sparqlQueryString = "SELECT (count(*) AS ?count) { ?s ?p ?o }";
    // See http://incubator.apache.org/jena/documentation/query/app_api.html
    Query query = QueryFactory.create(sparqlQueryString);
    QueryExecution qexec = QueryExecutionFactory.create(query, dataset);
    ResultSet results = qexec.execSelect();
    ResultSetFormatter.out(results);
    qexec.close();
    dataset.close();
}

Example 40 with ResultSet

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

the class ExTDB_Txn1 method execQuery.

public static void execQuery(String sparqlQueryString, Dataset dataset) {
    Query query = QueryFactory.create(sparqlQueryString);
    QueryExecution qexec = QueryExecutionFactory.create(query, dataset);
    try {
        ResultSet results = qexec.execSelect();
        for (; results.hasNext(); ) {
            QuerySolution soln = results.nextSolution();
            int count = soln.getLiteral("count").getInt();
            System.out.println("count = " + count);
        }
    } finally {
        qexec.close();
    }
}