The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Oct. 17, 2006
Ian Gerald Craggs, Salisbury, GB;
Ian Gerald Craggs, Salisbury, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a publish/subscribe system, a plurality of publishers provide information on a range of topics and a plurality of subscribers subscribe to one or more topics and topic sets on which they wish to receive information. Subscribers can also unsubscribe from topics and topic sets on which they do not wish to receive information. A subscription matcher such as a message broker is used to generate a subscription list of topic and topic set identifiers—from both the subscribe and unsubscribe requests of each subscriber. The subscription matcher then matches items of information from each publisher with topics and topic set definitions in the subscription list of each subscriber, and distributes matched items of information in accordance with subscription lists. The subscription matcher determines precedence between any overlapping subscribed and unsubscribed topics and topic sets based on the sequence in which they were stored.