static array initialization

[Aurelien]

Hi,

Another beginner's question (c'mon they're easy to answer ;-):

I want to have class (static) fields in the form of an array. Hence I 
declare them as static just above the @interface declaration:

#import "ClassFactory.h"

@class Advertisement, MimeMediaType, AdvertisementFactory

static Class advRequiredConstructors [][];
static NSObject advRequiredStaticMethods [][];
static int getAdvertisementTypeMethod = 0;

@interface AdvertisementFactory: ClassFactory
{
....
}
....

To initialize these variables, I declare a class method named:

+ doStatic;

To have my class initialized, I'll have to call the doStatic method on 
each class that has a such method.

My question comes in three parts:

1) Isn't there a standard way to do this (e.g. using the + alloc 
method) ?

2) in the body of this method, how do I initialize an array of an array 
of NSObjects. Do I have to use malloc ?

3) Will I have to manually free the allocated pointers ?

thx in advance,

Aurélien