IPP Mail Archive: Re: IPP> Re: New IPP Scheme

IPP Mail Archive: Re: IPP> Re: New IPP Scheme

Re: IPP> Re: New IPP Scheme

Robert Herriot (robert.herriot@Eng.Sun.COM)
Fri, 17 Jul 1998 13:40:28 -0700

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Comments are below.

At 05:49 AM 7/17/98 , don@lexmark.com wrote:
>I'm confused...
>
>In Bob Herriot's summary of the telecon agreement, he said:
>
>> job attributes -
>> job-uri
>> job-printer-uri
>> printer attributes -
>> printer-uri-supported
>> operation attributes -
>> job-uri
>> printer-uri
>>
>>If the scheme of the target URL in a request (i.e. the value of
>>"printer-uri" or "job-uri" operation attribute) is some scheme 'x', other
>>than 'ipp', the behavior of the IPP object is not defined by this
>document.
>>However, it is RECOMMENDED that if an operation on an IPP object creates a
>>new value for any of the above attributes, that attribute has the same
>>scheme 'x'. It is also RECOMMENDED that if an IPP object returns any of
>the
>>seven attributes above in the response, that the IPP object returns those
>>URL values as is, regardless of the scheme of the target URL.
>
>1) In the sentence that starts out "However, it is RECOMMENDED..." what
>does "that attribute has the same scheme 'x'" mean? Has the same scheme as
>what??

What I meant was that if a Printer receives a Create-Job operation with
"ipp://foo.com/printers/Foo" as the value of the "printer-uri" attribute,
then the Printer creates a "job-uri" attribute with an "ipp" scheme, e.g.
"ipp://foo.com/printers/Foo/123". Likewise, if a Printer receives a
Create-Job operation with "http://foo.com:631/printers/Foo" as the value of
the "printer-uri" attribute, then the Printer creates a "job-uri" attribute
with an "http" scheme, e.g. "http://foo.com:631/printers/Foo/123".

>
>2) The last sentence says "...any of the seven attributes above..." Yet
>there are only five attributes listed above. I don't think there are
>attributes missing so should that be "...any of the five attributes
>above..."????

I guess I can't count.
>
>3) What does "as is" later in the same sentence mean?

If you are referring to the user interface paragraph, I was trying to say
that the software doesn't change a URL in any way. If a user can see a URL,
it will be the same as the one passed in one of the five attributes. That
is, if the attribute value is "ipp://foo.com/printers/Foo", that is what the
user sees, and if the value is "http://foo.com:631/printers/Foo", that is
what the user sees.

>
>
>
>**********************************************
>* Don Wright don@lexmark.com *
>* Product Manager, Strategic Alliances *
>* Lexmark International *
>* 740 New Circle Rd *
>* Lexington, Ky 40550 *
>* 606-232-4808 (phone) 606-232-6740 (fax) *
>**********************************************
>

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Comments are below.

At 05:49 AM 7/17/98 , don@lexmark.com wrote:
>I'm confused...
>
>In Bob Herriot's summary of the telecon agreement, he said:
>
>>     job attributes -
>>        job-uri
>>        job-printer-uri
>>    printer attributes -
>>        printer-uri-supported
>>    operation attributes -
>>        job-uri
>>        printer-uri
>>
>>If the scheme of the target URL in a request (i.e. the value of
>>"printer-uri" or "job-uri" operation attribute) is some scheme 'x', other
>>than 'ipp', the behavior of the IPP object is not defined by this
>document.
>>However, it is RECOMMENDED that if an operation on an IPP object creates a
>>new value for any of the above attributes, that attribute has the same
>>scheme 'x'. It is also RECOMMENDED that if an IPP object returns any of
>the
>>seven attributes above in the response, that the IPP object returns those
>>URL values as is, regardless of the scheme of the target URL.
>
>1) In the sentence that starts out "However, it is RECOMMENDED..." what
>does "that attribute has the same scheme 'x'" mean?  Has the same scheme as
>what??

What I meant was that if a Printer receives a Create-Job operation with
"ipp://foo.com/printers/Foo" as the value of the "printer-uri" attribute,
then the Printer creates a "job-uri" attribute with an "ipp" scheme, e.g.
"ipp://foo.com/printers/Foo/123". Likewise, if a Printer receives a
Create-Job operation with "http://foo.com:631/printers/Foo" as the value of
the "printer-uri" attribute, then the Printer creates a "job-uri" attribute
with an "http" scheme, e.g. "http://foo.com:631/printers/Foo/123".

>
>2) The last sentence says "...any of the seven attributes above..."  Yet
>there are only five attributes listed above.  I don't think there are
>attributes missing so should that be "...any of the five attributes
>above..."????

I guess I can't count.
>
>3) What does "as is" later in the same sentence mean?

If you are referring to the user interface paragraph, I was trying to say
that the software doesn't change a URL in any way.  If a user can see a URL,
it will be the same as the one passed in one of the five attributes. That
is, if the attribute value is "ipp://foo.com/printers/Foo", that is what the
user sees, and if the value is "http://foo.com:631/printers/Foo", that is
what the user sees.


>
>
>
>**********************************************
>* Don Wright                 don@lexmark.com *
>* Product Manager, Strategic Alliances       *
>* Lexmark International                      *
>* 740 New Circle Rd                          *
>* Lexington, Ky 40550                        *
>* 606-232-4808 (phone) 606-232-6740 (fax)    *
>**********************************************
>

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