Re: accessibility check failed

[sbelmont700@gmail.com]

On Sunday, November 29, 2015 at 1:03:28 PM UTC-5, Serge Robyns wrote:
> 
> The idea is to return a copy of the client record and store with it a reference to the data store class from which the object came from.  This will allow to use my_object.change_XYZ to update the object and it's representation into the store through that reference.
> 

You seem to be implementing an abstract container of abstract objects, and so without wading into the OOP/AAT debates, that's one of the few legitimate uses of return-by-anonymous-access, e.g.

overriding function Get_Client
  (Self        : T_Data_Store; 
   Client_Name : T_Client_Name) return access T_Client'Class

Now there's no DAO object at all, and you save yourself *lots* of keystrokes.  Or, better yet, use the dubious 'accessor' pattern to wrap the return value to further protect it (i.e. an access discriminant).

But as was said, as a general rule, AAT's are specialized tools for specialized jobs with special rules and special effects, so be sure you understand the *ALL* the implications before you use them.

-sb