+1 There is no STM integration with atoms. That's not a concern.
Just write your own Clojure core with your change. I did for durable identities. <shamelessPlug>git://github.com/kwanalyssa/clojure.git</ shamelessPlug> Seriously though, just use protocols. Thanks, Alyssa On Dec 6, 5:24 am, Benjamin Teuber <bsteu...@googlemail.com> wrote: > I guess it was Rich's intention to have swap! be used for real atoms > only so your code remains understandable - that's why it's called > swap! for atoms, alter for refs and alter-var-root for vars. > > So why not define your own protocol for updating documents? If you > really want (usually bad idea, I guess) you could still extend atoms > or even refs to support this protocol, too. > > Regards, > Benjamin > > On 5 Dez., 23:29, Pepijn de Vos <pepijnde...@gmail.com> wrote: > > > > > tl;dr: Please add an interface to clojure.lang.Atom. kthxbye > > > I had the brilliant idea of using CouchDB for something equally brilliant, > > and if possible implement a Clojure view server. Turns out Clutch fits the > > bill perfectly, except that I would like to use Aleph, and Couch is using > > something called MVCC. > > > I haven't looked into the libs to deep, but I know the REST API, and what > > it does for updating is that you need to supply the current revision and if > > it doesn't match (i.e. there has been another update), the update fails. So > > then you need to get the new _rev and try again. Much the same way > > compare-and-set! works. > > > I thought it would be perfect to implement IAtom and IDeref to get the > > latest value and to swap! documents in a spin loop with a side-effect-free > > function, like atoms do. > > > But it turns out there is no interface for Atom and it is marked final. The > > same is true for Ref and Agent, but raek suggested this might be because > > they are more complex and integrated with the STM. > > > Is there a good reason why I'm not allowed to implement my own atom? If > > not, can it be added? Thanks. > > > Groeten, > > Pepijn de Vos > > -- > > Sent from my iPod Shufflehttp://pepijndevos.nl- Hide quoted text - > > - Show quoted text - -- 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
