@Test
  @Transactional
  public void retrieveConference() {
    log.debug("enter test retrieveConference@");
    Conference newConf = newConference();
    newConf.setSlug("jud-2014");

    Long id = conferenceDao.save(newConf);

    assertTrue(id != null);
    log.debug("id @=" + id);
    Conference conference = conferenceDao.findById(id);

    assertTrue(conference != null);
    log.debug("conference @" + conference);

    assertTrue("JUD2013".equals(conference.getName()));

    // query by slug
    conference = conferenceDao.findBySlug("jud-2014");

    assertTrue(conference != null);

    assertTrue("JUD2013".equals(conference.getName()));

    // query by slug
    conference = conferenceDao.findBySlug("jud-2013-1");

    assertTrue(conference == null);
  }
  @Test()
  @Transactional
  public void deleteConference() {

    Long id = conferenceDao.save(newConference());

    assertTrue(id != null);
    log.debug("id @=" + id);
    Conference conference = conferenceDao.findById(id);

    assertTrue(conference != null);

    conferenceDao.delete(conference);

    conference = conferenceDao.findById(id);

    log.debug("conference@" + conference);

    assertTrue(conference == null);
  }
  @Test
  @Transactional
  public void updateConference() {

    Long id = conferenceDao.save(newConference());

    assertTrue(id != null);
    log.debug("id @=" + id);
    Conference conference = conferenceDao.findById(id);

    assertTrue(conference != null);

    assertTrue("JUD2013".equals(conference.getName()));

    String name = "JUD2013Boston";
    conference.setName(name);

    conferenceDao.update(conference);

    conference = conferenceDao.findById(id);

    assertTrue(name.equals(conference.getName()));
  }