Hi William,
I have compiled your test program and have been able to see the issue
you report which has been reported to our development team for
comment/resolution. Once I have feedback from them I shall report
back to the mailing list with the solution.
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
On 29 Aug 2008, at 12:59, William Lee wrote:
Hi all,
I have a question regarding support of transaction when using the
Sesame 2 driver on top of 5.0.7. I have a test case which tries to
add a statement and then attempt a rollback. The statement still
exist after the rollback. I have attached a test case to see
whether anyone can shed some light on the transaction support.
Cheers,
Will
package virtuoso.test;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import org.junit.Test;
import org.openrdf.model.URI;
import org.openrdf.repository.Repository;
import org.openrdf.repository.RepositoryConnection;
import virtuoso.sesame2.driver.VirtuosoRepository;
public class TransactionTestCase {
@Test
public void testTransaction() throws Exception {
Repository repository = null;
RepositoryConnection connection = null;
try {
repository = new VirtuosoRepository("jdbc:virtuoso://
localhost:1111", "xxx", "xxx");
repository.initialize();
connection = repository.getConnection();
// disable auto-commit to start a transaction.
connection.setAutoCommit(false);
URI subject = repository.getValueFactory().createURI
("urn:s");
URI predicate = repository.getValueFactory().createURI
("urn:p");
URI object = repository.getValueFactory().createURI
("urn:o");
URI context = repository.getValueFactory().createURI
("urn:c");
// The triple should be non-existent before add.
connection.clear(context);
assertThat(connection.getStatements(subject, predicate,
object, false, context).hasNext(), equalTo(false));
// 1. add the triple.
connection.add(subject, predicate, object, context);
// 2. test if the triple now exist.
assertThat(connection.getStatements(subject, predicate,
object, false, context).hasNext(), equalTo(true));
// 3. force a rollback
connection.rollback();
// 4. make sure the triple still exist after the commit.
assertThat(connection.getStatements(subject, predicate,
object, false, context).hasNext(), equalTo(false));
} catch (Exception e) {
fail("not expecting an exception");
} finally {
if (connection != null) {
connection.close();
}
if (repository != null) {
repository.shutDown();
}
}
}
}
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