The power of Oracle Event Driven Architecture by Roger van de Kimmenade

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Introduction

There is a lot of hype around Microservices and the use of events for implementing the choreography pattern. However this is nice for companies like Netflix and Twitter, but there are a lot of organisations still struggling with files and ESB like products. Also my current client uses an ESB namely the Oracle SOA Suite 12c for integrations. We cannot just throw away this ESB, but we can make use of the event mechanism built in. This blog describes the way we use the EDN (Event Delivery Network) component, that is used within SOA composites to throw events and to subscribe on events.

EDN

Oracle has a component that you can use to publish events and to subscribe on events within a SOA composite. Just use the invoke activity with the eventname and the content of the event. Within a composite you can subscribe on events and set filters. You can also configure “oneAndOnlyone” consistency property and indicate if you want a durable or non-durable subscriber. The EDN hides the underlying JMS provider, which can be changed (weblogic jms or OracleAQ). Separate Topics can be defined for each event or just use 1 topic for all events.

Notes:

  • Applications must always be abstracted by a corresponding SOA Composite. Applications should not use JMS directly
  • EDN cannot be used directly from within Oracle OSB
  • 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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