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Re: _ref_extra [message #26238 is a reply to message #23132]

Mon, 13 August 2001 09:19

Pavel A. Romashkin
Messages: 531
Registered: November 2000

Senior Member

JD Smith wrote:
>
> Despite the inconvenience, GetProperty as it is does have one thing in
> its favor: if you just allow those fields to be "gotten" that you won't
> mind keeping the same, you can isolate yourself from your own (OK, my
> own) tendency to perform quick-fixes by digging deeper than you should.

The whole reason I tried to make a uniform Get_property (G_P) method is
because I decided that the authou of the code is allowed access to every
single field of the object, and can decide how he uses those fields. G_P
is solely for returning *contents* of several fields in one pass. In my
opinion, if you want G_P to return a calculated value, it needs to
become a separate method, or else it will become a nightmare after
several calculations are added to G_P.
I also have a function called Return_property (R_P) that returns just
one field of the object. This is convenient when one field is all you
need. lets say for passing that value as an argument.
BTW, both G_P and R_P are unaware and don't care about what they will be
called upon. All they need is to be recompiled with a correct class
name. Unfortunately, I have not come up with an elegant way for G_P, so
I will not post it here for now. I can't come up with a hack to break
into _Ref_extra or get variable names passed via _extra, either.
Oh, forgot to say that Set_property (S_P) works the same exact way.

> My recommendation: only add GetProperty keywords when you run into the
> first time you actually *need* that value

This is the whole idea: I am not adding *any* explicit keywords to G_P,
R_P or S_P, because it is too much hassle especially when your object is
immature and gets a field added every now and again. My way, I don't
care if I add a field: I reset IDL and G_P works on new fields as well
as on the old ones.

Cheers,
Pavel

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[Message index]

		_ref_extra By: Pavel A. Romashkin on Wed, 10 January 2001 14:54
		Re: _ref_extra By: Pavel A. Romashkin on Mon, 13 August 2001 10:37
		Re: _ref_extra By: John-David T. Smith on Mon, 13 August 2001 09:47
		Re: _ref_extra By: Martin Schultz on Wed, 22 August 2001 23:58
		Re: _ref_extra By: Pavel A. Romashkin on Mon, 13 August 2001 09:19
		Re: _ref_extra By: John-David T. Smith on Fri, 10 August 2001 13:07
		Re: _ref_extra By: Pavel A. Romashkin on Fri, 10 August 2001 12:44
		Re: _ref_extra By: david[2] on Fri, 10 August 2001 12:39
		Re: _ref_extra By: Pavel A. Romashkin on Fri, 10 August 2001 11:31

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