Re: Schema Question

[Stuart Booth]

On Mon, 22 Dec 2003 16:12:15 -0500, "Sullivan, Glenn"
<<a
href="/group/xAP_developer/post?postID=z7PxJEYnMK2jE3ev84-QWDRtdcsBvHWeQ68liVHZdEKIFEzvDv9XA2fNH3GTRpLAhEPlTam9X9BAREiRLlw">gsullivan@d...</a>>
wrote:

>I guess it just seems silly to send out two messages.

Indeed, redundant traffic.

> Can't I just create
>optional parameters in the TTS.Speak block in TTS.Basic, and then the
>"simpler" tts devices will ignore them? And then only have a
class called
>TTS.MSAgent for blocks like DefaultCharacter.Change, or Status.Request?

What sort of additional parameters were you thinking of here? My own
TTS app is incredibly basic. I don't think I've fired it up in a
looooong time so I can't even tell you what it did/does. ToDo list,
deeply lost somewhere...

Something I've been playing around with a little bit that has been
mentioned here before is that of class inheritance. I don't know what
the current thinking on this is though. These are just some ideas that
floated through my head.

Anyway, taking your example,

Class = TTS.Basic

TTS.Speak
{
Text=Speak these words of ultimate wisdom
}

Then 'derive' from this class and add further specialisation:

Class = TTS.Basic.MSAgent

TTS.Speak
{
Text=Words
}
TTS.Agent
{
Character=Trudy
}

A TTS.Basic capable app can pick out the things it knows and ignore
the rest. A MSAgent equipped app can cope with the additional data
that the basic app skipped over.

Or as even wilder alternative, how about inheriting the message block
too:

Class = TTS.Basic.MSAgent

TTS.Speak.Agent
{
Text=Words
Character=Trudy
}

There's quite an overhead in processing this kind of stuff on low
power devices however! So it's just a couple of alternatives to
consider.

Going back to your original plan, if the additional bits of optional
data are general enough, then why not stick them in your TTS.Basic as
you suggest. Are we thinking about different voices here? There are
several examples of additional optional data in basic level schema
that are often ignored.

S
--
Stuart Booth <<a
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