[Ryan Hoegg wrote:]
> I am CC'ing xmlrpc-dev@ , please follow up there.
Fine - wasn't sure which list would be most appropriate.
> This would be lovely, I have been musing over something like that for
> months. +1 from me.
>
> One change to the idea that might be nice is to do the introspection
> once at deployment time instead of on each call.
Getting all the methods and caching them isn't hard to do, but I'm not
entirely sure whether that buys you much - current JVM's already cache
the lookups, and I think the cost of the lookup is much smaller than
the actual method (except for trivial methods, of course).
> Using an interface is
> a nice touch, I was thinking about using method attributes (using
> commons-attributes or something else) or a separate XML deployment
> descriptor. Different use case :)
The advantage of an interface is that it can't get out of synch with
the object. And of course in my scenario I already have an interface
;-) But I'm open to discussion.
Cheers,
Ronald
> Life is hard, and then you die wrote:
>
> > Hi,
> >
> >I would like to be able provide a handler and have the methods
> >automatically looked up, just like the Invoker does, but export
> >only a subset of the available methods, as defined by an interface
> >(the case I'm running into this is when the handlers are avalon
> >components - they implement various interfaces, but only one of them is
> >what I'd like to export as rpc methods). One minimal change to
> >accomplish this would be to add another constructor to
> >org.apache.xmlrpc.Invoker which takes both the targetObject and the
> >targetClass:
> >
> > /**
> > * Create a new Invoker instance which limits the methods that can be
> > * invoked on the target. The invoker will only invoke methods on the
> > * given target which are defined as public in the given interface
> > class.
> > *
> > * @param target the object on which to invoke the methods
> > * @param iface the exported methods that can be invoked
> > */
> > public Invoker(Object target, Class iface)
> > {
> > if (!iface.isInstance(target))
> > throw new IllegalArgumentException("target " + target + " is
> > not an instance of " + iface.getName());
> > invokeTarget = target;
> > targetClass = iface;
> > }
> >
> >Does this sound like a reasonable enhancement?
> >
> >
> > Cheers,
> >
> > Ronald
> >
> >
> >
>
