Hi All,

I have a situation where i have a child object attached to a parent object (via a many to one relationship). The child object can be uniquely identified with a business key. I have situations where the child object can 'move' to a different parent. Currently, I'm doing this by executing a delete statement that deletes the child before i attach it to the new parent, and then saving the parent via the session.

I was wondering if there's a better way of doing this?

Thanks in advance!

Hi,

Use Association. Learn more from the below link,

http://www.hibernate.org/hib_docs/v3/re ... sociations

Ramnath,
As I've mentioned in my post, I'm already using a many-to-one association for the parent-child relationship. Do you have a specific recommendation that would help address my question?
Thanks.

You should be able to just update the relationship(s) and have hibernate move it without having to delete and re-create.

Are you using bidirectional many-to-one associations? In that case one side is the master relationship and the other is just a backpointer that does not "drive" the association. The backpointer side should be marked "inverse=true" in the mappings.

In this case you need to be sure to update the right side of the bidirectional association so that the data is saved. Best practice is to do both updates with a pattern where each set updates the other link also via an addXxx() method that sets both relationships.

see: http://www.hibernate.org/116.html#A10