(require '[clojure.string :as str])

(defn keyword->setter [kw]
  (->> (str/split (name kw) #"-")
       (map str/capitalize)
       (apply str "set")
       (symbol)))

(defmacro bean-set! [bean props]
  `(doto ~bean
     ~@(for [[k v] props]
         `(. ~(keyword->setter k) ~v))))

(defmacro create-bean [cls props]
  `(bean-set! (new ~cls) ~props))

(defn dim [w h] (Dimension. w h))

(create-bean JFrame {:title "Hello, world!"
                     :size (dim 400 300)
                     :visible true})
; -> #<JFrame javax.swing.JFrame[frame6,0,0,400x300,invalid,layout=java.awt.BorderLayout,title=Hello, world!,resizable,normal,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,4,30,392x266,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]>