Variable superclass

Hi, I currently have created the following class design: Abstract Class A and Subclass B(1) < A. As expected with implementing an abstract class, I also have Subclass B(2)<A, B(3)<A...etc. I'm interested in creating a new subclass, say C, whose Superclass will be determined at runtime. For example, I may want C<B(1) or C<B(2) and therefore I'm interested in a varaible superclass B when coding my subclass C. Is this possible? Can anyone point me in the right direction for documentation? Thanks.

[Paul]

I found a work around solution and thought I might post it. It's not quite as elegant as might be possible in C++ but it works. Simply create objects of Subclass B(1)...B(n) in Subclass C at runtime, and instatiate the appropriate object based on a string indicator (or object indicator such as 'enum').

Answer 1

[per isakson]

One way that I have used is to write an m-file at run time.

classdef C < Middle
...

At run time I write the file, Middle.m, to a special folder (to avoid copies of Middle.m in different folders)

classdef Middle < Bx
end

before calling C. If used the construct must be describe in the comments.