[gmpi] Re: Topic 8: Parameters
- From: Frederic Vanmol <frederic@xxxxxxxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Fri, 8 Aug 2003 15:56:25 +0200
> First of all, I certainly hope that plugins will publish their version,
> and that that will be a required part of the API.
>
I don't mind that.
> Secondly, I also hope that the state data format, when we get there,
> includes version, whether it's done as a "parameter" or not (and
> personally I don't see why it would be one, it's not changeable).
Exactly. But the idea of a state data format itself negates being able to
recall a state only by its parameters, doesn't it (which is what started my
comments)?
> Thirdly, what difference does it really make if you publish a parameter
> that is arbitrary data, even if it's something secret or something like
> that? Only the plugin knows how to understand it, and can provide an open
> way for the user to alter it or not.
Not much of a difference. Only, a host will be more complex if it has to
distinguish between understandable parameters and others (since obviously it
can't show the others to the user).
> What's the real crux of your
> concerns here?
Backward compatibility in a plugin. Right now, I save a version number in the
state of a plugin. Then when I read it back, I know how to make sense of that
data.
> Fourthly, I think that it should be possible for GMPI plugins to mark some
> parameters as private or whatever you want to call them, basically things
> that should not be shown in generic interfaces.
Yes, that's a possible solution. But once again, that just puts more of a
burden on the host, while I think that a plugin should be free to save its
data exactly the way it wants to.
Frederic
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