Not good, since if database commit fail it is too late for dosync to rollback. In fact database commit should somehow cooparate with dosync commit which is just a case of distributed transaction.
On 10 Cze, 23:11, James Reeves <jree...@weavejester.com> wrote: > On 10 June 2010 11:26, Michael Jaaka <michael.ja...@googlemail.com> wrote: > > > Is there any way to integrate database transaction with Clojure > > transaction? > > It would be nice if operations done in memory and on database would be > > commited atomicly with the end of transaction scope in Clojure. > > Such interface had to be also aware of changes made by concurrent > > transactions, so it would know when to redo changes. > > > Any thoughts? > > Well, you *could* do something like this: > > (defmacro dotrans [trans & body] > (let [trans# ~trans] > (try > (dosync > (rollback trans#) > ~...@body) > (catch Exception e# > (rollback trans#) > (throw e#))) > (commit trans#))) > > But I'm uncertain whether this is a good idea or not. > > - James -- 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
