Hi Marc,
"But the domain model I'm thinking of has lots of mutable things that
change over time when I execute the business actions."
In your case, you don't need any STM to model any of your domain. I'd go
so far as to say that to use refs for this is almost certainly a mistake.
"Of course the
I find the modelling Clojure data structures very similar to working out
what your aggregates roots are for domain-driven design or using a document
data store.
I would suggest avoiding using refs in a customer map. In this case, it
sounds like customer is your natural aggregate root, so you shoul
Hello,
I'm trying to implement some business model in Clojure. I have several
years of experience developing OO systems in Java. So it's still very hard
to wrap my head to functional thinking. I hope you can help me with
following questions.
I need a domain model for customers, contracts and f
I wrote something like this last night:
(def user-metadata {:fields
((:name (required) (max-length 50))
(:email (required) (max-length 250)))})
(defn create-user [name, email]
(with-meta
{:name name :email email}
user-data))
I have a validate function which pulls the metadata from
On Sun, Jan 31, 2010 at 10:33 PM, Barry Dahlberg
wrote:
> Perhaps I'll write up my findings once the language stops intimidating
> me.
>
> At the moment I'm writing an account "object". I have some standard
> CRUD type functions which operate on a map behind the scenes. I would
> like to add som
find an example with
metadata.
Any pointers of where to start looking?
Cheers
Barry
On Jan 26, 7:01 am, PublicFarley wrote:
> Stuart pretty much nails it. This is the strategy that I have taken in
> my own Clojure apps. Having said that it would be nice to see an
> extensive, with co
Stuart pretty much nails it. This is the strategy that I have taken in
my own Clojure apps. Having said that it would be nice to see an
extensive, with comprehensive examples, "Domain Modelling with
Clojure" write up.
On Jan 25, 12:30 pm, Stuart Sierra
wrote:
> On Jan 24, 4:29 am, B
On Jan 25, 7:20 pm, Roman Roelofsen
wrote:
> After playing around with clojureql I noticed how well the relational
> data model maps to a functional language. Processing lists (result
> sets), joining, filter, group by, etc. are ideas I found in both
> worlds. I am currently working on a toy proje
Thanks for the thoughts everyone, I'm having a read through that paper
now. I'm still looking for some code to read because while what you
are saying makes, I've done so much OOP my brain is having a hard time
making the jump.
Also added it as an suggestion in this thread if anyone else is
intere
Hi, I'm an experienced C# / .Net developer and a relative Lisp newbie.
In my .Net programming I have taken a lot of design inspiration Domain
Driven Design and Eric Evans book in particular. The idea that a
developing a strong model of the problem domain is the most important
part of application
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