Method for controlling retention of publications and publication/orderation agent

A technology of agents and publishers, applied in the fields of controlling release maintenance and publishing/subscribing agents, which can solve the problem of inflexibility of predetermined quantity

Inactive Publication Date: 2008-06-04
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relying on predetermined quantities is inflexible, and there is still the problem of how to decide on a

Method used

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  • Method for controlling retention of publications and publication/orderation agent
  • Method for controlling retention of publications and publication/orderation agent
  • Method for controlling retention of publications and publication/orderation agent

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Embodiment Construction

[0029] Aspects and embodiments of the invention are described below, including methods, computer programs and data processing apparatus for implementing the invention within a distributed data processing network. This embodiment is described as an illustrative example only to ensure a complete understanding of the invention and its advantages. The invention is not limited to the illustrative embodiments described.

[0030] Embodiments enable new publication messages to be persisted in the publish / subscribe broker along with previously held publications under control of tokens from the publisher. This enables groups of publications with cumulative significance to be maintained together, as an alternative to keeping all publications on each topic, or just one, so that new orderers can obtain the latest maintained group of publications with cumulative significance from brokers .

[0031] For reasons of cost and to facilitate transactional development, it is common for publish / s...

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Abstract

For managing the retention of publications in a publish/subscribe system, a publisher sends a new publication to a publish/subscribe broker with an indication of whether the new publication should be retained in association with a previous retained publication. The publish/subscribe broker responds to such indications by retaining the new publication with the previous retained publication. The contents or 'payload' of the new published message may be appended to a previous retained message, resulting in a single retained message that contains information from multiple published messages.

Description

technical field [0001] The present invention relates to communication and data storage management within a data processing network, and more particularly, the present invention provides apparatus, methods and computer programs for controlling the retention of messages in a publish / subscribe messaging environment. Background technique [0002] In a messaging network, messages may be passed from one data processing system to another via one or more "message brokers" that provide routing and, in various cases, transformation and other services. Although broker functions can be implemented at various points within a distributed broker network, brokers are typically located at communication hubs within the network. [0003] Several message brokers support the publish / subscribe communication paradigm. This involves a publisher sending a communication that can be received by a set of Subscribers that have registered their interest in receiving that type of communication, the publi...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/58
CPCG06Q10/063G06F17/3089G06F16/958
Inventor 马修·R·怀特黑德安德鲁·J·斯坦福-克拉克本杰明·J·弗莱彻加雷斯·E·琼斯
Owner IBM CORP
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