It does work. As far as I can tell, the namespace with defmethod must require the namespace with defmulti and also the namespace with defmethod must be required from some other namespace that is being executed.
Eg: *foo.clj:* (ns foo) (defmulti mmtest identity) (defmethod mmtest :default [_] (println "default")) *bar.clj:* (ns bar (:require [foo])) (defmethod mmtest :bar [_] (println "in bar")) *core.clj:* (ns core (:require [foo :refer [mmtest]] ; The mm we want to call [bar])) ; include the :bar impl (println "Testing") (mmtest :bar) ; Prints "in bar" If you don't require bar from core, it will print default instead. Note, in this example I require foo and bar from core and use mmtest in core too - you don't need to require bar from the same namespace that you use in from like I did here. You just need to make sure that the (defmethod ...) call gets executed before you call mmtest. On 10 July 2014 19:09, Elric Erkose <elric.erk...@gmail.com> wrote: > This sounds interesting. I tried to define a multimethod in one file and a > method in another file. I had no success. > >> -- > 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 > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.