pg -
I can say from experience that you can generate (or at least partially generate) the data-access methods that will generate your value classes, too. It's not very hard to generate classes that will handle simple CRUD/db work, and it can be even easier if you already have a set of stored procedures for data access.

Code-generation can be very fun and highly productive. When done even half-skillfully, it can lead to a larger percentage of bug-free code.

I am often suprised at the number of developers who have no clue about how to proceed w/ code generating ventures. I've come across dozens of degree-holding, experienced developers who would be more than happy to hand-code a hundred or more value classes and their corresponding method calls. I often wonder if it's a matter of simple indifference.

And after many iterations of having used Perl to make some job easier, I find myself asking more and more often 'Why in the h*ll don't I just use Perl for the whole thing?'