公开(公告)号：GB2354913A

公开(公告)日：2001-04-04

申请号：GB9922802

申请日：1999-09-28

Applicant: IBM

Inventor： HOLDSWORTH SIMON A ,  TODD STEPHEN JAMES PAUL ,  AYRES MALCOLM D ,  HOLLOWAY TIMOTHY ,  SCHMIDT MARC-THOMAS ,  TAYLOR MICHAEL GEORGE

IPC: G06F17/30 ,  G06Q30/00 ,  H04L12/18 ,  G06F17/60 ,  H04L12/58

Abstract: A message broker 32 is described that can receive messages on a given topic from a number of publisher applications 31a/b. These messages are received at a plurality of publication points 323/324, which are data processing nodes at the beginning of specific processing paths through the broker. The messages may be processed 321 by the processing path, for example a transformation, before arriving at a subscription point 325. From here the message is forwarded to subscribers 33 interested in the subject matter of the message. The system allows publishers to publish messages in a single format, rather than all the formats required by subscribers, and the use of a single topic name to identify the subject of the message throughout the system, rather than one per format of the message. In the embodiment the system provides stock data to subscribers and the message transformation involves changing the currency that stock prices are quoted in.