Hi clojure developers! I recently wrote an alternative datatype system for a project of mine, because requirements were a little odd and I couldn't find anything appropriate.
My questions are: 1) Was this necessary at all? Can my requirements be fulfilled with off-the-shelf clojure libraries or components? Requirements include the ability to merge objects as shown below. 2) Do you think this system would be useful to the clojure community? Should I clean it up and publish it? The best way to show how it works is with an example: ; This create a product "class". The "mandatory" function ; returns a special value which throws an ; exception when it's read. ; Sort of like a pure virtual method. (defobject :product [] :name (mandatory) :price (mandatory) :warranty (mandatory)) ; PC's have 1 year of warranty by default in our shop (defobject :pc [:product] :cpu (mandatory) :ram (mandatory) :warranty 1) ; Mobiles instead get 3 (defobject :mobile [:product] :battery-idle-time (mandatory) :warranty 3) ; This FAILS: the system tries to inherit the :warranty property ; from both parents but a conflict occurs (because the values are different) (defobject :smartphone [:pc :mobile]) ; We must override the :warranty property. This works: (defobject :smartphone [:pc :mobile] :warranty 2) ; Then we can create an "instance"... (defobject :zamzun-universe [:smartphone] :cpu :z80 :ram "1GB" :battery-idle-time "300h") ; ...and use it (fetch (object :zamzun-universe) :warranty) ; -> 2 -- 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
