System for controlling retention of data messages
US8495160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2007 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Apr 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/214
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Subscribers connected to a publish/subscribe message broker receive messages on topic names to which they have subscribed. The subscribers receive any number of messages on each topic to which they have subscribed. When the broker receives a message on a second, pre-specified, topic, associated with a first topic, the broker removes any existing retained message related to the first topic. Thus any subsequent subscribers to the first topic do not receive the retained message when they subscribe, and thus do not receive out-of-date information. If, at a later date, a new message is published on the first topic subscribers will receive the new message if they are still subscribed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.