Three Entity Constraint in Object Role Model in NORMA?

I am trying to model the constraint depicted in the ORM diagram below using NORMA for Visual Studio 2010: Merchant...

Minimal and correct way to map one-to-many with NHibernate?

I am new to NHibernate and C#, so please be gentle! I have the following two NHibernate entities: Employee { p...

Hibernate: flush() and commit()?

Is it good practice to call org.hibernate.Session.flush() separately? As said in org.hibernate.Session docs, M...

When to use Hibernate/JPA/Toplink??

Right now I'm making an extremely simple website- about 5 pages. Question is if it's overkill and worth the time to ...