Not sure what you are trying to do. If you have an existing java class or
interface that you are trying to extend, you need to specify it. If you are
trying to create a new class, you probably want to look at defrecord.
If extending an existing java interface or class (that is on your classpath
and import'd):
(def calc
(proxy [Calculator] []
(add [x y] (+ x y))
(subtract [x y] (- x y))))
On Sat, Dec 4, 2010 at 5:49 PM, Rock <rocco.ro...@gmail.com> wrote:
> NULL POINTER EXCEPTION!
>
> I was trying to create a handler for the web service above.
>
> It should be the equivalent of (Java):
>
> public class Calculator {
> public int add(int i1, int i2) {
> return i1 + i2;
> }
> public int subtract(int i1, int i2) {
> return i1 - i2;
> }
> }
>
> So I basically wrote the following:
>
> (def Calculator
> (proxy [] []
> (add [x y] (+ x y))
> (subtract [x y] (- x y))))
>
> But I get the following error:
>
> java.lang.NullPointerException
>
> Anybody have a clue?
>
>
>
>
> On Dec 4, 9:09 pm, Rock <rocco.ro...@gmail.com> wrote:
> > Looks pretty good. Thank you so much.
> >
> > This does however worry me a little from another point of view.
> > There's always been a lot of talk about how easy it is to interface
> > Clojure to Java. Yet, when it comes to a lot of situations (for
> > instance, when dealing with annotations as in the JAX-WS SOAP web
> > service facility), it doesn't seem at all straightforward. By the way,
> > anybody know what the story is with Java annotations currently? I read
> > somewhere that Clojure 1.2 (or possibly 1.3) can support them to a
> > certain extent.
> >
> > On Dec 4, 8:11 pm, Shantanu Kumar <kumar.shant...@gmail.com> wrote:
> >
> >
> >
> >
> >
> >
> >
> > > I guess you should look at XML-RPC2, which has a simpler usage:
> http://ws.apache.org/xmlrpc/xmlrpc2/server.html
> >
> > > Regards,
> > > Shantanu
> >
> > > On Dec 4, 10:26 pm, Rock <rocco.ro...@gmail.com> wrote:
> >
> > > > I'm desperately trying to implement an xml-rpc server with Clojure
> > > > (trying to convince the company I work for here in Italy to give it a
> > > > shot). I'm pretty well versed in Lisp, but I have yet to acquire
> > > > sufficient experience with Clojure's Java interop capabilities.
> >
> > > > I've read the docs for implementing a server with ws-xmlrpc here:
> >
> > > >http://ws.apache.org/xmlrpc/server.html
> >
> > > > But I really can't figure out how to translate this to Clojure.
> >
> > > > Thanks to all for any help in this respect.
>
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