IPP Mail Archive: IPP> Validate-Job for print by reference

IPP> Validate-Job for print by reference

Roger K Debry (rdebry@us.ibm.com)
Fri, 18 Jul 1997 12:03:01 -0400

On Wednesday's call there was some discussion of a proposal to add a new
operation
or a parameter to Validate-Job to handle print by reference. It is not clear
to me that we
need such an operation.

Currently, I believe the function of Validate-Job is to validate the job
parameters against
Printer capabilities. This should be independent of whether or not the
document will be
passed or printed by reference.

If one wants to test whether or not print-by reference is supported, then he
would send
a Get-Operations request.

If the objective of this new operation is to test whether or not the given URI
is valid,
i.e. if the Printer can get it, then I am concerned that we are testing a
time-dependent
variable. I could try the URI at one instant and because of server or network
load
not be able to get to the document. Furthermore, I could find the document and
report
back okay only to have the document owner move or delete it before the Print-URI
request was sent and operated upon by the Printer.

Roger K deBry
Senior Techncial Staff Member
Architecture and Technology
IBM Printing Systems
email: rdebry@us.ibm.com
phone: 1-303-924-4080