I recently read the article http://www.colourcoding.net/blog/archive/2011/10/25/clojure-is-a-get-stuff-done-language.aspx?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+ColourCoding+%28Colour+Coding%29
and it mentions in the "Better than a better java" section, that "Compojure defines a protocol called Renderable that allows you to specify how return types get converted into Ring responses. Now, you could apply an adapter pattern in most languages to link these two up. In Clojure, you can declare that a type implements a protocol and it*just works*. You don’t need to extend the type; you don’t need to monkey patch it; you don’t need to introduce a proxy object under your control." What does the author mean by "don't need to extend the type" but only need to "declare that a type implements a protocol?" I am familiar with extend, and extend-type, or extend-protocol, but not JUST declaring a type implements a protocol and it magically works. From what I know, you always have to specify the implementation, even if the implementation is simply delegating it to some other function. Best, Brent -- 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
