Hibernate : Can we delete parent object without delete the child object using Hibernate?

Question

Hi guys Is it possible to delete the parent object without deleting child object in Hibernate ? In My Case child has multiple parent So I just want to remove one parent object from child object.

Answer 1

Yes, though you must remember about two things:

1) Your child entity must allow null on the foreign key to the child

2) You must remember to NOT have CascadeType.DELETE on the @OneToMany relationship in the parent.

3) Before removing the parent, clear the children collection first:

parent.setChildren(null);
session.delete(parent);