hibernate one to many with 3 table

table 1:collage
table 2: students
table 3 : teachers
one collage, multiple student and multiple teacher. how to do in hibernate one to many.
aaronyeo22Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

gudii9Commented:
Here is interesting link, explanation

You use 2 different collections mapped in nHibernate to load/update the data from/to the data store and you create a 3rd collection that exposes the 2 internal collections. The third collection isn't a real collection -- it's just an implementation of the interfaces the client code will expect (IList, IEnumerable most likely). Actually, that's all a real collection is, my point is that it doesn't have its own data store.

If you look at my modificataions to the mapping example you provided, you'll notice that I renamed the one-to-many maps to give each a different name. So what you are doing is telling nHibernate to map it as if there are 2 tables (which there are) and telling the client that there is a single collection that acts as a factory to return the appropriate object type. You need to write the code in the middle that makes it appear to the client that there is a single collection.

e.g.

Code:
public class InvoiceItems : IEnumerable, IList
{
  /* in the implementation, use the 2 internal collections
     as the data source for InvoiceItems.
  */
}


I should also point out that it may be possible to do what you are trying to do in nHibernate without adopting my approach. I don't know enough about it to be able to say it isn't in there.

https://forum.hibernate.org/viewtopic.php?f=25&t=951879
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.