These strangeloop slides [PDF] by Chouser may help: http://strangeloop2010.com/talk/presentation_file/14491/Houser-ClojureExpressionProblem.pdf
Regards, Shantanu On Oct 16, 11:45 pm, Zach Tellman <ztell...@gmail.com> wrote: > I've dealt with a similar problem when creating Penumbra [1]. An > 'app' has several mostly orthogonal pieces: window management, input > handlers, action queues, and so on. From an implementation > standpoint, it's very desirable to split these up, but we don't want > to expose that to the user. > > What I did was create several different protocols, and then create a > type which has an instance of each. Unfortunately, we don't want has- > a, we want is-a. But it's pretty easy to use extend-type to forward > each call to the parent type into the appropriate child type. See the > auto-extend macro at the top > ofhttp://github.com/ztellman/penumbra/blob/master/src/penumbra/app.clj > for one way to do this. > > Keep in mind that this approach doesn't require that all pieces be > orthogonal to each other, since you can instantiate one protocol with > another. Using atoms, you can even handle circular dependencies. > > If you have any further questions, I'd be happy to answer them. > > Zach > > On Oct 15, 6:58 am, "K." <kotot...@gmail.com> wrote: > > > > > Hello, > > > I'm a developping a Swing GUI in Clojure and follow the MVC patterns. > > The view implements a protocol for displaying data, and another one to > > register Swing listeners. Callbacks registered with the second > > protocol only access the UI through the view protocol. > > > Each of this protocol has ~50 functions (and it's growing every > > day...). > > > Even if I do some delegation when implementing these protocols, the > > deftype implementation has already ~700 lines. > > > Is there a way to split the definition in several files or namespaces, > > or more generally, what would be the best way to organize this > > architecture? > > > I don't think subdivising the view in several views makes sense, since > > from the point of view of the listeners it's really only one entity > > (but maybe I'm wrong on this). > > > Thanks in advance for your suggestions. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
