Browse Prior Art Database

Cancel Request With Predicate/ Condition(s)

IP.com Disclosure Number: IPCOM000107330D
Original Publication Date: 1992-Feb-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Johnson, WJ: AUTHOR [+4]

Abstract

A methodology is described which permits cancelling local or remote requests with a sophisticated predicate.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Cancel Request With Predicate/ Condition(s)

       A methodology is described which permits cancelling local
or remote requests with a sophisticated predicate.

      It is often desirable to cancel completed requests such as mail
distribution. A cancel function enables such processing but prior art
requires cancellation of a specific request (singular) or all
requests for a particular function. A mechanism is needed to cancel a
request such as a distribution sent with filtering means. The
filtering means allow cancelling the set of requests which satisfy
some predicate(s).  This efficiently cancels only the desired set of
completed requests without forcing a multiplicity of cancels or a
reissue of original requests.

      For example, many mail items are sent to a recipient Joe. The
mail items are individual script files which form a single document
when the main script file is scripted. For the sake of argument, say
there are 25 imbed files imbedded by the main script file. There are
26 files you sent to Joe. Days go by and you assume Joe has been
receiving your files. In fact, you send updates of 15 or so files,
some of which are sent several times to ensure Joe has the latest
update. You find out Joe is on vacation. Rather than have Joe scream
when he checks his In-Basket and tries to sort out which files to
keep and which files to discard, you decide to delete the obsolete
files for him. The method described here allows you to issue a cancel
request which has a predicate that logically states KEEP ONLY THE
LATEST FILE DATE/TIME STAMP FOR ALL FILES WITH THE SAME NAME. Said
predicate is satisfied when it arrives at code managing the cancel
request at Joe's INBASKET.

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