Cascade type recommendation

tikusbalap · **Joined:** Tue Apr 01, 2008 9:40 pm **Posts:** 3

Hi experts,

I need recommendation for cascade type. I'm confuse when choosing between: all, save-update, etc.

Primary, I'm set default cascade as save-update for all my mapping. Is there any tips?

wolli · **Posted:** Wed Apr 02, 2008 2:35 am

Have a look at the parent/child example in the documentation:

Code:

http://www.hibernate.org/hib_docs/nhibernate/1.2/reference/en/html/example-parentchild.html

There's a good introduction to cascading lifecycle. I can't give you a recomendation, because usage of this heavily depends on your requirements.

tikusbalap · **Joined:** Tue Apr 01, 2008 9:40 pm **Posts:** 3

I already know about all cascade function. But I want to ask everybody something like

Code:

http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#objectstate-transitive

especially,

Code:

 Recommendations:

    *

      It doesn't usually make sense to enable cascade on a <many-to-one> or <many-to-many> association. Cascade is often useful for <one-to-one> and <one-to-many> associations.
    *

      If the child object's lifespan is bounded by the lifespan of the of the parent object make it a lifecycle object by specifying cascade="all,delete-orphan".
    *

      Otherwise, you might not need cascade at all. But if you think that you will often be working with the parent and children together in the same transaction, and you want to save yourself some typing, consider using cascade="persist,merge,save-update". 

but in NHibernate style.

I confuse when choosing one of them

Any ideas? Is true that default-cascade is bad?