/**
* Creates foreign keys for subclass tables that are mapped using table per subclass. Further
* information is available in the <a href="http://jira.grails.org/browse/GRAILS-7729">JIRA
* ticket</a>
*/
private void createSubclassForeignKeys() {
if (subclassForeignKeysCreated) {
return;
}
for (PersistentClass persistentClass : classes.values()) {
if (persistentClass instanceof RootClass) {
RootClass rootClass = (RootClass) persistentClass;
if (rootClass.hasSubclasses()) {
Iterator subclasses = rootClass.getSubclassIterator();
while (subclasses.hasNext()) {
Object subclass = subclasses.next();
// This test ensures that foreign keys will only be created for subclasses that are
// mapped using "table per subclass"
if (subclass instanceof JoinedSubclass) {
JoinedSubclass joinedSubclass = (JoinedSubclass) subclass;
joinedSubclass.createForeignKey();
}
}
}
}
}
subclassForeignKeysCreated = true;
}
public static void main(String[] args) {
Session session = null;
try {
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session = sessionFactory.openSession();
Contact contact;
String SQL_QUERY = "select c.id, c.firstName from Contact c where c.id >= 3";
Query query = session.createQuery(SQL_QUERY);
Iterator it = query.iterate();
while (it.hasNext()) {
Object[] row = (Object[]) it.next();
System.out.println("------------------------------------------------------");
System.out.println("ID : " + row[0]);
System.out.println("First Name : " + row[1]);
}
System.out.println("Done");
} catch (Exception e) {
// tx.rollback();
System.out.println(e.getMessage());
} finally {
// session.flush();
session.close();
}
}
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();
}
/** step through queue and call the real saveOrUpdateInternal method to do the work */
public void run() {
List queueList = new ArrayList(queue);
for (Iterator i = queueList.iterator(); i.hasNext(); ) {
SaveOrUpdateCall call = (SaveOrUpdateCall) i.next();
try {
saveOrUpdateInternal(
call.baseName, call.moduleName, call.bundleData, call.loc.toString());
} catch (Throwable e) {
logger.error("problem saving bundle data:", e);
} finally {
queue.remove(call);
}
}
}
public Boolean addOrUpdateMedia(Session session, Media media) {
try {
// Need to save the loans before saving the media
Map<Integer, Loan> tabEx = media.getTabExemplaries();
for (Iterator<Loan> i = tabEx.values().iterator(); i.hasNext(); )
session.saveOrUpdate(i.next());
// Persist the media
session.saveOrUpdate(media);
} catch (HibernateException pe) {
System.err.println("Problème dans la sauvegarde ");
pe.printStackTrace();
return false;
}
return true;
}
public Map<String, String> getBundle(String baseName, String moduleName, Locale loc) {
Object[] values = new Object[] {baseName, moduleName, loc.toString()};
String sql =
"from MessageBundleProperty where baseName = ? and moduleName = ? and locale = ? and value != null";
List<?> results = getHibernateTemplate().find(sql, values);
Map<String, String> map = new HashMap<String, String>();
if (results.size() == 0) {
logger.debug(
"can't find any overridden values for: "
+ getIndexKeyName(baseName, moduleName, loc.toString()));
return map;
}
for (Iterator<?> i = results.iterator(); i.hasNext(); ) {
MessageBundleProperty mbp = (MessageBundleProperty) i.next();
map.put(mbp.getPropertyName(), mbp.getValue());
}
return map;
}
@SuppressWarnings("unchecked")
public Boolean delMedia(Session session, Media media) {
try {
// Need to delete the loans before deleting the media
Map<Integer, Loan> tabEx = media.getTabExemplaries();
for (Iterator<Loan> i = tabEx.values().iterator(); i.hasNext(); ) session.delete(i.next());
// Also, all the bookings of the media need to be deleted
List<Booking> bookings =
(List<Booking>)
session.createQuery("from Booking where media=:m").setParameter("m", media).list();
for (Booking b : bookings) session.delete(b);
session.delete(media);
} catch (HibernateException pe) {
System.err.println("Problème dans la suppression ");
pe.printStackTrace();
return false;
}
return true;
}