Re: Self pointer in limited record

[Jean-Pierre Rosen <rosen@adalog.fr>]

Dmitry A. Kazakov a �crit :
> You don't need to model Spike's weight in your system because changing the
> weight should have no effect. Spike cannot communicate its weight to other
> components of the system, because it is not *a* thing with mass. No, it is
> just Spike, the One. Its weight has been abstracted away.
Sorry, but I'm really puzzled at this point.
What do you know about *my* system?

You seem to be of the kind of people who classify everything (no attack 
intended: just an observation). In my experience, about half of the 
people (but only half) think this way: if it has a weight, it must 
belong to the class of massive things. The rest of the world (to whom I 
belong) view things as having properties without the need of 
classifying. Maybe it is a matter of being left- or right-brained...


> Weight is a number with all properties of real values + ones of mass,
> acceleration etc. But Spike's weight (tm) is not a number. It is another
> singleton specific to Spike and unrelated to anything else = nothing.
Spike's weight is a physical property, but its abstraction (i.e. what I 
need from weight in my application) is its value in measurement unit.

BTW, I would not say it is a singleton. Weight is not an object at all, 
it is a simple value. Remember: not everything is an object (I hope 
Michel Gauthier reads this)

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            J-P. Rosen (rosen@adalog.fr)
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