Agreed, important area to cover. For yade (my project) we have written a library for that, the code is here: http://tinyurl.com/k2mf4 Not much documentation, just some comments in the code. It is basically a factory from Andrei Alexandrescu's book "Modern C++", just a bit tweaked. That code is short, so you can browse it for hints if you wish. There is one HUGE mistake there: this library is using a singleton. Singletons hide complexity, don't do that people, I have learned my lesson. I'm currently looking forward to replace it with another more mature and better library, or rewrite yade's library applying 'parametrize from above' solution. So far, the best candidate for replacement I have currently found is this one: http://s11n.net/class_loader/ But you have just lighten up my hopes, because I will be more than happy to use a library for that, which is a part of boost. I don't know _if_ and _when_ I'll go around to rewrite yade's plugin library, but I should be around to try and help you in writing one. Sadly it is time dependant, so I don't know hom much I will be able to help. PS: One question: is it technically possible, to make a plugin class _not_ derived from something (e.g. a class called factorable)? I was wondering about that, and couldn't answer. -- Janek Kozicki |