Hi,
I have a problem when I save an object with a list of object mapped.

I change the elements of this list (remove some objects and adds
another ones) and then I save the parent object.

When I save the parent object Hibernate first make INSERT
SQL into database in order to save new objects which I have
added into the list and then make DELETE sql to delete the objects
which I remove from list.

I would like that hibernate could change these operations and
make the DELETE operation before and the INSERT operation
after.

Is it possible? How can I do this?

Thanks a lot for your help.


Enrico

I'm not sure if you're going to have any success with this.

I believe the inserts are done first for a reason, as the opposite has the potential for violating integrity constraints in certain scenarios.

You might be able to remove the object from the Hibernate Session through an evict, which would stop Hibernate from managing the persistence and doing the inserts first. Then, you could perhaps just do an actual update, or a delete and then an update (although that could be going a little too far.)

For a little bit of background on why Hibernate might be performing those updates, take a look at this little tutorial that goes into How Hibernate Works, and why Hibernate does the things it does.

How Hibernate Works: Understanding the Hibernate ORM Model and Mechanism

Happy Hibernating!