Mix-In Classes: Bug or Limitation

[Mark Lamoreaux]

Hi,

I have a Class that contains 3 mix-in classes.  Each mix-in class contains one collection variable that I need dynamically created.  Each mix-in class contains the appropriate Factory::InitSysVars code to do this.  However, when I create an instance of my main object, only one mix-in class' InitSysVars code gets ran (the last class alphabetically).

The InitSysVars of the main class after linking in one or more mix-in classes is:

DO $SUPER.(Existence,Knows)Factory::InitSysVars

Should this instead be a loop to handle each superclass' InitSysVars, or is there a reason why it only runs one and I just have to add my own code to run InitSysVars on each superclass?

Thanks,
Mark

[Jerry Goodnough]

Mark,

$Super will only call one ancestor, in the case on multiple inheritence, which ancestor it calls in random (Likey to be consistent for a given set of ancestors, but now following a set rule - Well at least one I can rember).

I would suggest altering the decendant code to call each ancestor independantly...

Indeed you might actually want to post this as a bug... (hmm... hold on that - See below) It would make far more sense to have the code that generated InitSysVars generate specific calls to the ancestor...

Hmmm... On a side note this problem should not occur in 4.1.0.12+ (Which I hope to release within the next week), since I'm deprecating InitSysVars, and replacing it with a new Method called InitAllSysVars which creates the variables for all levels at once in a single call.. This is MUCH faster and resolves problems like this one.

        Jerry