Howard, Is there a chance that you consider making Cascade servlet- independent? It would be great if Cascade application could be also run, for example, directly as a grizzlet (or some other yet-to-be- created technology). Is there an absolute need to depend on servlets now when we have Clojure's advanced concurrent models and immutability?
On Jul 22, 5:46 pm, Howard Lewis Ship <hls...@gmail.com> wrote: > On Wed, Jul 22, 2009 at 8:16 AM, Stuart > > > > Sierra<the.stuart.sie...@gmail.com> wrote: > > > On Jul 21, 6:55 pm, Howard Lewis Ship <hls...@gmail.com> wrote: > >> It would be nice if (gen-class), when not in compile mode, would still > >> create a class in memory that could be referenced by class name > >> elsewhere in Clojure. > > > The gen-class function does nothing unless the *compile-files* var is > > true. So you should be able to do: > > > (binding [*compile-files* true] > > (gen-class ...)) > > > To generate classes at run-time. As others have mentioned, though, > > you can't redefine a named class in Java once it's been loaded. > > Actually, no. You can't redefine a named class *in the same classloader*. > > However if you create a new class loader to contain the new class, you > can make it work. > > Tapestry has been doing this for a few years now (it actually reads > the bytecode for a base class then does an AOP-style transformation on > the code before loading the transformed class into a new class > loader). > > This would be both harder and easier to do in Clojure. Because of > Vars, its pretty easy to get rid of references to the old function, > class and class loader. However, because of functional closures, you > will often be holding a reference to a function (and it's class, and > it's class loader). > > Still, this may be acceptable if you consider running Clojure code > without AOT to be "development mode" and running Clojure code with AOT > to be "production mode". > > -- > Howard M. Lewis Ship > > Creator of Apache Tapestry > Director of Open Source Technology at Formos --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
