/**
* Updates given object in the database. Returns true if update is successful, otherwise returns
* false.
*
* @param object
* @return
*/
public synchronized boolean update(Object object) {
Transaction transaction = null;
Session session = null;
boolean errorResult = false;
try {
session = HibernateUtil.getCurrentSession();
transaction = session.beginTransaction();
session.update(object);
transaction.commit();
return true;
} catch (HibernateException exception) {
rollback(transaction);
BookingLogger.getDefault()
.severe(this, Messages.METHOD_UPDATE, Messages.HIBERNATE_FAILED, exception);
return errorResult;
} catch (RuntimeException exception) {
rollback(transaction);
BookingLogger.getDefault()
.severe(this, Messages.METHOD_UPDATE, Messages.GENERIC_FAILED, exception);
return errorResult;
} finally {
closeSession();
}
}
/**
* Deletes all database entries based on the class where method is called.
*
* @return
*/
public synchronized boolean deleteAll() {
Session session = null;
Transaction transaction = null;
boolean errorResult = false;
try {
session = HibernateUtil.getCurrentSession();
transaction = session.beginTransaction();
SQLQuery query = session.createSQLQuery(DELETE_ALL + getTableName());
query.executeUpdate();
transaction.commit();
return true;
} catch (HibernateException exception) {
rollback(transaction);
BookingLogger.getDefault()
.severe(this, Messages.METHOD_DELETE_ALL, Messages.HIBERNATE_FAILED, exception);
return errorResult;
} catch (RuntimeException exception) {
rollback(transaction);
BookingLogger.getDefault()
.severe(this, Messages.METHOD_DELETE_ALL, Messages.GENERIC_FAILED, exception);
return errorResult;
} finally {
closeSession();
}
}
/**
* Rolls back given transaction and logs it to the log file.
*
* @param transaction
*/
protected void rollback(Transaction transaction) {
try {
if (transaction != null) transaction.rollback();
} catch (HibernateException exception) {
BookingLogger.getDefault()
.severe(this, Messages.METHOD_ROLLBACK, Messages.HIBERNATE_FAILED, exception);
}
}