There are a number of things happening at OpenWorld that are related to CEP.  We have a couple good demos running at the CEP booth in the DEMOgrounds.  For example, one of the demos uses CEP to track shoppers in a shopping mall that have signed up for a service which provides them with special deals and electronic coupons when they approach a particular store in the mall. The demo shows off the use of Oracle Spatial and CEP together.  If you are interested in CEP please stop by the booth -- it is located in Moscone West -- booth 99 -- in the northwest corner of the show floor. 

At 1 p.m. today there will be an Oracle CEP hands-on lab held at the Hilton Hotel.  The room is Continental Ballroom 5.  The lab will last for approximately 1 hour and give participants a chance to develop a running CEP application.

At 4 p.m. today there is a general session on CEP that will take place at the Westin Hotel.

Oracle Complex Event Processing, Caching, Algorithmic Trading, and Other ROIs
Maneesh Joshi, Oracle; Paul Shetler, Oracle; Perren Walker, Oracle
Tuesday 
10/13/2009
16:00 - 17:00
Westin Market Street Hotel

Hope to see you during the show.

List<Status> statuses = twitter.getPublicTimeline(lastTweet);

It doesn't get much easier than that!  Once the adapter has retrieved the data from Twitter it converts the data to an Oracle CEP event and then sends the event to any of its event listeners in the usual way:

streamSender.sendInsertEvent(statusEvent);

Hopefully, this short example has provided a flavor for the simplicity with which Twitter can be accessed from an Oracle CEP application.  I welcome any comments that people have on this topic, especially suggestions for new features that would enhance Oracle CEP's support for Twitter. 

TS-4544
An Introduction to Complex Event Processing on the Java™ Platform
Technical Session
Andy Piper, Oracle Corporation; Robin Smith, Oracle Corporation
Tuesday
June 02
4:40 PM - 5:40 PM
Esplanade 304-30

TS-4783

Design Patterns for Complex Event Processing
Technical Session
Alexandre Alves, Oracle Corporation; Shailendra Mishra, Oracle Corporation
Wednesday
June 03
1:30 PM - 2:30 PM
Esplanade 304-306

I would definitely recommend attending these sessions on Tuesday and Wednesday if you are interested in learning about CEP technology and how it can be used to build event-driven applications.

• High-performance
• Great support
• Small learning curve for Java developers
• Low hardware costs
• Supports and encourages innovation

1. Data Grid support.  Distributed caching systems, like Oracle Coherence, are now integrated into the OCEP programming model.  This gives OCEP applications not only fast access to cached data, but also high availability (HA) for the data that they produce.  Oracle CEP 10.3 actually includes a Coherence OSGi bundle.
2. Clustering. The clustering support makes it possible to create a multi-server domain.  This is especially useful when deploying an applications that use a hot-hot architecture.
3. Event Record and Playback.  This feature allows events to be persisted and then played back later -- very useful for debugging or testing the effectiveness of new application logic.
4. Administration Console.  A new administration console -- also known as the "Visualizer".  The Visualizer allows administrators to manage and monitor OCEP applications.  The Visualizer was built using Adobe Flex.
5. Performance.  Lots of hardening work to make applications go really fast.  The performance guys never get enough credit for all the work they do.
6. And more.  The rest of the new features are listed on the documentation page.