Exception Handling: Continue working with Session

okgago · **Joined:** Mon Apr 18, 2005 5:31 am **Posts:** 3

I would like to get an Object after an exception occurs. However the get() method throws the same exception. What am I doing wrong?

Code:

try{
session.save(anObject);
} catch (ConstraintViolationException exp) {
Object obj = session.get(aClass, aKey);
.
.
.
//exception handling
}

batmat · **Posted:** Tue Jul 11, 2006 9:02 am

Where is declared your transaction ? Where is your rollback after the exception is thrown ? Did you use a tx context ? (Maybe with Spring?)

try
{
session.beginTransaction();
session.save(yourObject);
}catch(HibernateException)
{

session.getTransaction().rollback();//this should also be put in a try-catch block
}

And I'm not sure, but I think it would be better to use a new session for this. Anyway, the session is designed to be very short-lived, so the right pattern would be to destroy the one that was containing the object you tried to save, I's say.

okgago · **Joined:** Mon Apr 18, 2005 5:31 am **Posts:** 3

Indeed I'm using Spring and HibernateTransactionManager and the actual code is as follows:

Code:

try{
getHibernateTemplate().save(anObject);
} catch (ConstraintViolationException exp) { 
Object obj = getHibernateTemplate().get(aClass, aKey); 
. 
. 
. 
//exception handling 
}

If I get an exception (ConstraintViolationException specifically) with the save method, I get the same exception with the get method in the catch block.