valuetype generators

hi everyone,

Is there any tool out there that generates the impl and the
defaultFactory file for Java, C++, and Ada?  For example, as I am sure
you know, if you run an idl compiler against an idl file for Java, it
will generate the defaultfactory file.  The only problem, is that you
have to comment, and uncomment certain lines so the default factory
file does not throw exceptions.  Also, the user has to manually
generate the impl file.

If there were only one or two valuetypes, it wouldn't kill a developer
to do it by hand.  However, we have hundreds of valuetypes and need
some way of automating the process.  We are thinking of either doing
it by hand, or looking for some tool available on the web.

If anyone has any suggestions on this mb, it would be greatly
appreciated.

Thanks,
-dan