Getting Java Class objects, and JSS

[John Pallister]

Hello list,

I'm working on getting ABCL + the Jetty <http://www.eclipse.org/jetty> web
server + SLIME working together as a development environment for Google App
Engine web apps[1]. This seems to be what the Clojure people have done
<http://www.hackers-with-attitude.com/2009/08/intertactive-programming-with-clojure.html>:
run your own Jetty server & SWANK server, then load the GAE JARs to provide
the same emulated services as the GAE SDK's development server.

I've been working through the "Embedding Jetty" tutorials[2] and making
reasonable progress (with help from Mark Evenson and others on #abcl -
thanks Mark!). I've been doing it all in Lisp (so far), making my own
servlet classes using JNEW-RUNTIME-CLASS. Ideally I'd like to make an ABCL
library equivalent to (a subset of) Compojure
<https://github.com/weavejester/compojure> (and appengine-magic
<https://github.com/gcv/appengine-magic>).

Some of the tutorials have code like:

  context.addServlet(HelloServlet.class, "/");

Is it possible to get Class objects for Java classes I've made with
JNEW-RUNTIME-CLASS (or indeed for any other Java class)?

I've been using "raw" JCLASS & JMETHOD etc. calls to experience just how
painful that really is, but I'm apprehensive about using JSS
<http://abcl.org/trac/browser/trunk/abcl/contrib/jss/README.markdown> and
paying the runtime dynamic dispatch penalty, given that on GAE time is
money. Something more like a SLIME plug-in that looked up & cached classes,
methods & fields at editing time (perhaps also parsing Java expressions)
and generated "statically typed" code would be nice (possibly using code
from e.g. JDEE <http://emacswiki.org/emacs/JavaDevelopmentEnvironment>
and/or CEDET <http://cedet.sourceforge.net/>) - has anyone else thought
about this?

Cheers,

John :^P (hoping HTML email to the list isn't a social faux pas)

[1] I have a page of initial notes and links at
https://johnp.net/jpkb/wiki/AbclOnGae
[2] https://wiki.eclipse.org/Jetty/Tutorial/Embedding_Jetty,
http://www.eclipse.org/jetty/documentation/current/embedding-jetty.html
-- 
John Pallister
john at johnp.net
john at synchromesh.com
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