Rhino provides a similar facility https://developer.mozilla.org/en/Scripting_Java#JavaScript_Functions_as_Java_Interfaces but AFAIK it uses reflection.
On Tue, Sep 1, 2009 at 12:03 AM, Kevin Downey<redc...@gmail.com> wrote: > > I think this would necessitate an added layer of indirection and > reflection, which would mean taking a performance hit. > > On Mon, Aug 31, 2009 at 2:54 PM, Stuart > Sierra<the.stuart.sie...@gmail.com> wrote: >> >> That's a clever trick. How does the block know which interface method >> was invoked? >> -SS >> >> On Aug 31, 2:41 pm, rb <raphi...@gmail.com> wrote: >>> Hi, >>> >>> After using Jwt from Clojure, I did it with Jruby and discovered that >>> Jruby has what they call Closure Conversion (http://kenai.com/projects/ >>> jruby/pages/CallingJavaFromJRuby#Closure_conversion ) where a Ruby >>> block or closure is converted to an appropriate Java interface. From >>> the wiki: "When calling a method that expects an interface, JRuby >>> checks if a block is passed and automatically converts the block to an >>> object implementing the interface". >>> >>> I found this to be unbelievably easy to use and efficient (for the >>> developer) as the listener is added this way: >>> button.clicked.add_listener(self) do >>> greeting_.setText(nameEdit_.getText) >>> end >>> >>> There's no need for the developer to implement any interface or manage >>> any proxy object. >>> I wondered if something similar is possible in Clojure. If not, would >>> this be considered a valuable addition to Clojure? >>> >>> Thanks >>> >>> Raphaël >> > >> > > > > -- > And what is good, Phaedrus, > And what is not good— > Need we ask anyone to tell us these things? > > > > -- Professional: http://cgrand.net/ (fr) On Clojure: http://clj-me.blogspot.com/ (en) --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
