Integration Patterns – Publish/Subscribe (Part1) by Daniel Martins Teixeira

imageBroadcasting, Publish/Subscribe, Distributed Messaging, One-to-many, these are just some of the names referring to the same integration pattern, which is one of the most powerful available for connecting multiple systems.

In a nutshell, this pattern is about:

  • Source System publishes a message
  • Target Systems subscribe to receiving that message

This enables the propagation of that message into all the target systems that subscribe to it, as illustrated in the below picture.

This pattern is not new, in fact, it’s been around for decades. It powered distributed systems with its inherent loose coupling and independence.  Publishers and subscribers are loosely coupled which allows for the systems to run independently of each other. In the traditional client-server architecture, a client cannot send a message to a server that is offline. In the Pub/Sub model, message delivered is not conditioned by the server availability. Read the complete article here.

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Technorati Tags: SOA Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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