Surrogate keys

karurk · **Joined:** Thu Nov 16, 2006 3:48 pm **Posts:** 3

I know that Hibernate recommend to use Surrogate Keys. Our DBA's needed some document from hibernate which says that surrogate keys is recommended. I did not find any article from the hibernate site. Can you tell me where can i get that document.

gonzao_diaz · **Joined:** Mon Nov 26, 2007 2:29 pm **Posts:** 443

4.3. Implementing equals() and hashCode()

Quote:

We recommend implementing equals() and hashCode() using Business key equality. Business key equality means that the equals() method compares only the properties that form the business key, a key that would identify our instance in the real world (a natural candidate key):

I doubt the retarded mind of a DBA would understand this anyway, but good luck.