I'd like to propose a new Anti-pattern (forgive me if it alrady exists, I did not bother googling it):

The anemic relational model.

It is where the database is used as a "dumb transactional datastore"...]]> Fri, 13 Oct 2006 19:42:40 -0400 Fri, 13 Oct 2006 19:42:40 -0400 Fri, 13 Oct 2006 19:42:40 -0400 Oct 13, 2006 Guido Anzuoni 0 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 Fri, 13 Oct 2006 18:42:51 -0400 Fri, 13 Oct 2006 18:42:51 -0400 Fri, 13 Oct 2006 18:42:51 -0400 Oct 13, 2006 B B 0 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 Fri, 13 Oct 2006 14:44:01 -0400 Fri, 13 Oct 2006 14:44:01 -0400 Fri, 13 Oct 2006 14:44:01 -0400 Oct 13, 2006 Mark N 0 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 But self-consistence of objects is more important than layer separation.

Since when and Why? Rain check on other stuff for a little.]]> Fri, 13 Oct 2006 14:27:20 -0400 Fri, 13 Oct 2006 14:27:20 -0400 Fri, 13 Oct 2006 14:27:20 -0400 Oct 13, 2006 patel123 0 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 I think that domain models can express integrity constraints that go far beyond the capabilities of RDBMS.

I'd like to propose a new Anti-pattern (forgive me if it alrady exists, I did not bother googling it):

The anemic relational model.

It is where the database is used as a "dumb transactional datastore" that does...]]> Fri, 13 Oct 2006 12:37:29 -0400 Fri, 13 Oct 2006 12:37:29 -0400 Fri, 13 Oct 2006 12:37:29 -0400 Oct 13, 2006 Paolo Guccione 1 http://www.theserverside.com/discussions/thread.tss?thread_id=42602
Fowler is no pope? How do you explain you changing your programming style after reading his article which told you it is a bad practice? Back it up why is it a bad practice?

I think the point that Arjen was trying to make is that sometimes you have to start from a relational model. You can't always design the domain model first and *then* think of persistence. Mind you, this is not an edge case....]]> Fri, 13 Oct 2006 11:37:58 -0400 Fri, 13 Oct 2006 11:37:58 -0400 Fri, 13 Oct 2006 11:37:58 -0400 Oct 13, 2006 Erik Engbrecht 4 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 @Udayan Patel: Fowler is no pope, as nobody pretends to be one here. But until I read his article on "Anemic Domain Models" I had not realized that I myself had acquired a "bad habit".I just have a question for you: what prevents a domain...]]> Fri, 13 Oct 2006 11:31:18 -0400 Fri, 13 Oct 2006 11:31:18 -0400 Fri, 13 Oct 2006 11:31:18 -0400 Oct 13, 2006 patel123 2 http://www.theserverside.com/discussions/thread.tss?thread_id=42602 Indeed. I wrote that, because I've seen nothing to make a relational database store a rich domain - it stores tuple state and little more, except in a few rare cases.