[REBOL] Re: Private Object Function

[CRS - Psy Sel/SPO, COUSSEMENT Christophe, CPN]

> 1. I think the DBMS I developed in my REBOL book (REBOL The Official
> Guide) may be a starting point (chapters 15-18). It's not the "last
> word" in developing a dbms under REBOL, but it does provide some
> thoughts and examples that may be useful for you. I think the Object
> Navigator might come in handy.
        [I already read it. Great book. it taught me REBOL...]  


> You appear to follow the Object Pascal (Delphi) conventions.
        [IMHO those are just general conventions within OO analysis and
development. For sure I didn't find them out !]  

> >         - private access : the method can be called only from scripts in
> the
> > object for which the function was declared (including the sub-objects);
> the
> > method cannot be called from descendant of the object.
> 
> Hidden objects or contexts are not protected from descendants.
        [Do you mean by this it shouldn't be possible to implement it in
REBOL ?]  
> 
> See what I wrote above. If you enforce c) then you cannot use REBOL's
> default functions for saving an object from outside of the object. The
> serialization functions included IN objects can - of course - make use
> of write and save.
        [It's the way I already followed. I will couple this approach with
subobject or 'use for enforcing privacy.]  

> Note that - as demonstrated - it is possible to get at the hidden
> stuff, if you go out of your way to do so. 
        [the meaning of all this is to protect code from accidental use, not
to enforce paranoia ! So I think your approach is all OK ...]  

> The solution IMHO is to implement your own objects and supporting
> function in which you enforce private/protected/public rules. As long as
> your code does not use REBOL's built-in functions to violate these
> rules, you're fine, provided you don't mind the extra overhead.
        [Thanks a lot for your good advises ! 

        BTW is there anybody interested by the results I will get ? I do not
want to spam the list with uninteresting stuff...

        Best Regards,

        chr==
        ]  



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