ɥozɐʞıɥ

(defprotocol ICommand

(execute [this]))

(defrecord LoginCommand [USER]

ICommand

(execute [this] (println "hello " USER)))

(.execute (->LoginCommand "aa"))

(defmulti greeting (fn[x](x :id)))

(defmethod greeting 1 [arg]

(println "one"))

(defmethod greeting 2 [arg]

(println "two"))

(greeting {:id 2})