IPP Mail Archive: Re: IPP> New CUPS 1.1 beta and set-job-att

Re: IPP> New CUPS 1.1 beta and set-job-attributes extension [why not use "job-sheets"?]

From: Michael Sweet (mike@easysw.com)
Date: Mon Mar 20 2000 - 22:32:51 EST

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In reply to: Hastings, Tom N: "RE: IPP> New CUPS 1.1 beta and set-job-attributes extension [why not use "job-sheets"?]"
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"Hastings, Tom N" wrote:
> ...
> Wouldn't it be simpler to use these values in CUPS, rather than
> introducing two new Job Template attributes?

1. The PPE uses COLLECTIONS for this stuff
2. Collections are still being defined.
3. CUPS currently does not do anything with collections (it will
store the raw data, but that is all)
4. Without collections the job-sheets attribute cannot support
what CUPS needs to do.

Given those things, it is unlikely in the EXTREME that we will
change our design this close to a final release.

It is *possible* that we can change the names of the attributes
to "job-sheets-*", however I am concerned that we might step on
future attributes. Possible names:

    job-sheets-supported
    job-sheets-start-default
    job-sheets-end-default
    job-sheets-start
    job-sheets-end

At least that would be in line with the IPP spec, but that also
means we must support "job-sheets" and "job-sheets-default". I'm
not sure how we would map that given the ambiguity in the spec...

Another possibility might be to overload the "name" value to use
"start,end" for the "job-sheets" and "job-sheets-default" attributes,
however that might break clients that try to compare them against
the "job-sheets-supported" values.

In any case, any change we make now CANNOT include support for the
PPE spec.

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products                  mike@easysw.com
Printing Software for UNIX                       http://www.easysw.com

Next message: McDonald, Ira: "RE: IPP> New CUPS 1.1 beta and set-job-attributes extension [why not use "job-sheets"?]"
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In reply to: Hastings, Tom N: "RE: IPP> New CUPS 1.1 beta and set-job-attributes extension [why not use "job-sheets"?]"
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