On Tue, 2007-09-18 at 17:07 +0200, Marco Costalba wrote:
The 'components' in your factory are wrappers around default constructor, i.e. they take no arguments (this is a great way to simplify all the stuff ;-)
So in this case a simple template could be enough:
template<class T> static T* def_ctor_wrapper() { return new T(); }
and you can instantiate it where you need without replicating all the 'Component* Create()' stuff inside each object.
If you plan to support more then default c'tors, i.e if you plan to support passing arguments to your Create() functions probably you need to reconsider all the design, and complicate it a bit BTW ;-)
I have sent to this mailing list a couple of weeks ago some examples of a factory that does this (and much more) in case you are interested.
Original posted factory uses pure C++ with no libraries, I'm now converting it to use boost::fusion, just a way to learn myself this nice library.
Marco
Can you send me the code example? Stephen