2010/6/10 Alessio Stalla alessiostalla@gmail.com:

On Thu, Jun 10, 2010 at 4:29 PM, Knut Olav Bøhmer bohmer@gmail.com wrote:

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Hi,

Is it possible to implement two interfaces in one object?

java.lang.reflect.Proxy surely allows it. Whether this is supported by abcl or not is another matter. I will investigate.

Unfortunately, neither jinterface-implementation nor jmake-proxy currently supports this. It would not be hard to add, however, we probably need to choose one proxy-maker to keep and which one to deprecate/eliminate first. I sponsor jmake-proxy obviously, because I wrote it and because it's more flexible - you can build a proxy out of a hash-table of closures, a package, a function, or even a user-defined object if you want, and you have the option to provide a "lisp-this" object to dispatch on, as initially suggested by Ville. Also, jmake-proxy is currently used by the jsr-223 stuff to implement the getInterface() method. But, I'm open to other opinions of course.

Alessio