public List<Event> list() {
session = HibernateUtil.getSessionFactory().openSession();
transaction = session.beginTransaction();
events = (List<Event>) session.createQuery("from Event").list();
participationService.setParticipants(events);
return events;
}
public boolean delete(Event event) {
session = HibernateUtil.getSessionFactory().openSession();
try {
transaction = session.beginTransaction();
try {
session.delete(event);
if (!transaction.wasCommitted()) {
transaction.commit();
}
return true;
} catch (Exception e) {
transaction.rollback();
throw e;
}
} finally {
session.close();
}
}
public Event update(Event event) {
session = HibernateUtil.getSessionFactory().openSession();
try {
transaction = session.beginTransaction();
try {
session.update(event);
if (!transaction.wasCommitted()) {
transaction.commit();
}
return event;
} catch (HibernateException e) {
e.printStackTrace();
transaction.rollback();
}
} catch (Exception e) {
transaction.rollback();
} finally {
session.close();
}
return null;
}