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nate_hook
 Post subject: try catch finally...
PostPosted: Thu Dec 16, 2004 9:22 pm 
Newbie

Joined: Thu Dec 16, 2004 7:20 pm
Posts: 2
Hello All,

I've just been working with hibernate for a short while and haven't quite figured out the best way to work with try, catch, finally statements.

Here is an idea I've been kicking around for a little while now...

Code:
try
{
  Session session = SessionFactory.getSessionFactory().openSession();
  try
  {
    //do database stuff here like loads, saves, updates...
    session.load(object, new Integer(1));
  }
  finally
  {
    session.close();
  }
}
catch(Exception e)
{
  //Now handle any exceptions here...
}


Does anyone see any thing wrong with this approach? Does anyone do it differently?

Thanks for your time,

Nate
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david
 Post subject:
PostPosted: Thu Dec 16, 2004 9:34 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 7:19 pm
Posts: 2364
Location: Brisbane, Australia
The online docs and the APIs show a transaction Idiom you should apply.
For example a typical transaction should use the following idiom:

Code:
Session sess = factory.openSession();
Transaction tx;
try {
     tx = sess.beginTransaction();
     //do some work
     ...
     tx.commit();
}
catch (Exception e) {
     if (tx!=null) tx.rollback();
     throw e;
}
finally {
     sess.close();
}
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