I have a simple Parent/Child relationship defined as:

Now when I call parent.getChildren().remove(child) Hibernate first preforms a SQL update of parentId = null on the child row being removed, then it performs the delete. However, in normal operations the parentId column is set to "NOT NULL" so this triggers a constraint error. Is there a way to turn this behavior off so that the child is simply deleted without the initial null update? Thanks!

hi byronvf,

Use not null =true for key column.Another way is use Bydirectional mapping .That might help

Thanks for the reponse, I also found this in the documentation which addresses my question:

http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#example-parentchild

It's consistent with your advice. I needed to also add the inverse="true" attribute to prevent inserting a null value when adding a child to the collection. It seems to be working now, even though I wish I could say I firmly understand what's going on underneath the hood. More study seems in order...

Hi byronvf,

If My advice some where helps you then Plz.. give credit to it.