Newbie question

hauss · **Joined:** Mon Feb 20, 2006 3:27 pm **Posts:** 4

This has to be a very big newbie question, but I apologize I couldn't find an answer.

I have tables with auto_increment primary keys on them.

I just need to insert an object.. then get the ID out that my MySql database generated for my inserted row... and guarantee that it's the right ID (I dont feel safe doing a select MAX, etc)

Thanks, I apologize for the extreme newbie question.

BLudkiewicz · **Posted:** Wed Feb 22, 2006 3:20 pm

If you use session.save( Object obj ) it will return the generated identifer as a Serializable. If you are using an Integer as the id then your code would look something like this:

Code:

Integer id = (Integer)session.save(myObjectWithoutAnIdSet);

Hope this helps,
-B

calin · **Joined:** Wed Nov 23, 2005 5:01 am **Posts:** 15

Indeed the BLudkiewicz is right if you use that form of save, but you can also get the generated id from your object after your object has been saved.

session.saveOrUpdate(yourObject);
id= yourObject.getId();

or
id = session.getIdentifier(yourObject);

The choice is yours and of course depends by your possibility to have control to the id of your object.

Hope this helps