IPP Mail Archive: RE: IPP> Question concerning job-hold-until

IPP Mail Archive: RE: IPP> Question concerning job-hold-until

RE: IPP> Question concerning job-hold-until

From: Hastings, Tom N (hastings@cp10.es.xerox.com)
Date: Tue Jul 18 2000 - 18:19:50 EDT

  • Next message: kugler@us.ibm.com: "RE: IPP> Question concerning job-hold-until"

    I have some clarifications to what Carl suggests. See TH>

    Tom

    -----Original Message-----
    From: kugler@us.ibm.com [mailto:kugler@us.ibm.com]
    Sent: Wednesday, June 28, 2000 08:41
    To: ipp@pwg.org
    Subject: Re: IPP> Question concerning job-hold-until

    --- In ipp@egroups.com, Michael Sweet <mike@e...> wrote:
    > Hello, all!
    >
    > I have a quick implementation question concerning the job-hold-until
    > attribute, which doesn't seem to be addressed in the final model
    > document for IPP/1.1.
    >
    > Without going into too much detail, we have a customer that wants
    > to know if the job-hold-until attribute should always be returned
    > by a get-jobs or get-job-attributes request, or if it should only
    > be returned if the job-hold-until attribute was specified for the
    > job (at job creation or later with a hold-job request)
    >

    As a general rule, you should always return all applicable attributes, even
    though some may contain 'unknown' or 'no-value' values. Otherwise it's
    difficult for the client to determine which attributes you support.

    TH> I agree that a Get-Job-Attributes or Get-Jobs should return all
    requested attributes. However, if the attribute isn't supported at all, the
    Printer SHOULD return it in the Unsupported Attributes group with the
    'unsupported' out-of-band value, not in the Job Attributes group with
    'unknown' or 'no-value' out-of-band value.

    > If the latter, what happens when the hold condition expires (e.g.
    > the job starts printing)? Do we change the value to "no-hold"?
    >

    I wouldn't change it.

    TH> I agree.

    > Similarly, if we always should send job-hold-until, do we send a
    > value of "no-hold" or an "unknown" value tag?
    >

    The ?no-value? value is used for a supported attribute to which no value
    has been assigned.

    TH> I don't think a Get-Job-Attributes or Get-Jobs should return a value for
    "job-hold-until", if the client omitted the attribute in the Job Creation
    operation.

    > Thanks!
    >

    You're welcome.

         -Carl

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



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