public static void delete(TroopMovementWrapper troopMovementWrapper)
throws NoTransactionException {
DAOManager.beforeDelete(TroopMovementWrapper.class);
if (HibernateUtil.getEntityManager().getTransaction().isActive()) {
HibernateUtil.getEntityManager().remove(troopMovementWrapper);
DAOManager.afterDelete(TroopMovementWrapper.class);
} else {
DAOManager.afterDelete(TroopMovementWrapper.class);
throw new NoTransactionException();
}
}
public void runHibernate() {
// ############################################################################
Session session = HibernateUtil.getSessionFactory().openSession();
Transaction tx = session.beginTransaction();
Message message = new Message("Hello World");
session.save(message);
tx.commit();
session.close();
// ############################################################################
Session secondSession = HibernateUtil.getSessionFactory().openSession();
Transaction secondTransaction = secondSession.beginTransaction();
List messages = secondSession.createQuery("from Message m order by m.text asc").list();
System.out.println(messages.size() + " message(s) found:");
for (Iterator iter = messages.iterator(); iter.hasNext(); ) {
Message loadedMsg = (Message) iter.next();
System.out.println(loadedMsg.getText());
}
secondTransaction.commit();
secondSession.close();
// ############################################################################
Session thirdSession = HibernateUtil.getSessionFactory().openSession();
Transaction thirdTransaction = thirdSession.beginTransaction();
// message.getId() holds the identifier value of the first message
Message loadedMessage = (Message) thirdSession.get(Message.class, message.getId());
loadedMessage.setText("Greetings Earthling");
loadedMessage.setNextMessage(new Message("Take me to your leader (please)"));
thirdTransaction.commit();
thirdSession.close();
// ############################################################################
// Final unit of work (just repeat the query)
// TODO: You can move this query into the thirdSession before the
// commit, makes more sense!
Session fourthSession = HibernateUtil.getSessionFactory().openSession();
Transaction fourthTransaction = fourthSession.beginTransaction();
messages = fourthSession.createQuery("from Message m order by m.text asc").list();
System.out.println(messages.size() + " message(s) found:");
for (Iterator iter = messages.iterator(); iter.hasNext(); ) {
Message loadedMsg = (Message) iter.next();
System.out.println(loadedMsg.getText());
}
fourthTransaction.commit();
fourthSession.close();
// Shutting down the application
HibernateUtil.shutdown();
}
@SuppressWarnings("unchecked")
public static List<TroopMovementWrapper> findAll() {
DAOManager.beforeFind(TroopMovementWrapper.class, "findAll");
List<TroopMovementWrapper> list =
(List<TroopMovementWrapper>)
HibernateUtil.getEntityManager()
.createQuery("select x from TroopMovementWrapper x")
.getResultList();
DAOManager.afterFind(TroopMovementWrapper.class, "findAll");
return list;
}
