Jonathan Oliver on Event Sourcing and EventStore on 25 October 2011

We’re very proud to announce that Jonathan Oliver agreed to talk about his open-source EventStore project. In previous sessions, Greg Young and Mark Nijhof already talked about event-sourcing. Jonathan is going to dedicate this whole session on this topic, showing us several implementations for different kinds of databases.

For those of you who don’t know Jonathan, he’s the founder of SmartyStreets, a company that does web-based address verification and address validation. Most of their code is open source, including the EventStore project. Jonathan is also the founder and co-host of the Distributed Podcast, a great podcast about CQRS, DDD, Cloud Computing and much more.

Here are the details:

Start Time: Tuesday, October 25, 2011 07:00 PM GMT*

End Time: Tuesday, October 25, 2011 08:30 PM GMT

Attendee URL: http://snipr.com/virtualaltnet (Live Meeting)

VAN Calendar: http://www.virtualaltnet.com/Home/Calendar

Don’t miss out on this excellent learning opportunity. We would also love to hear your voice about future E-VAN sessions, so check out our feedback & suggestions page.

Recording of Mark Nijhof on CQRS @ E-VAN 18 November 2009

Update 26 November 2009: Also check out this follow-up post.

Mark Nijhof talked about the concepts behind the Command Query Responsibility Segregation while walking through the code of his CQRS sample application. It was good to finally see a concrete implementation on the architectural styles that Greg Young and Udi Dahan talked about in the previous sessions. The people who attended were able to ask their questions during the presentation. We hope that this helped them a lot in getting a better understanding of CQRS principles. We believe that Mark did a tremendous job and went into a great deal of effort to make this all more understandable.

For those who missed the presentation, the recording is now available on Vimeo:

Mark Nijhof on CQRS Sample @ E-VAN 18 November 2009

Unfortunately, the quality of the recording is not that good so you can also have a look at the original OLM recordings as well.

Details of the next E-VAN presentation will be posted shortly, so stay tuned.

Next European VAN on 18 November 2009

We just couldn't resist to get Mark Nijhof back after he announced his CQRS sample application on the DDD user group. The sample application that he developed is completely based on DDD à la Greg Young. The great thing about Mark's initiative is that the DDD/CQRS/SOA principles evangelized by Greg and Udi become more concrete and accessible to a wider audience of architects and developers. Therefore, the focus of this session is to take a deep dive into the code as Mark did before during his FubuMVC presentation.

Here are the details:

Start Time: Wednesday, November 18, 2009 07:00 PM GMT*

End Time: Wednesday, November 18, 2009 08:30 PM GMT

Attendee URL: http://snipr.com/virtualaltnet (Live Meeting)

VAN Calendar: http://www.virtualaltnet.com/Home/Calendar

(*) 07:00 PM UK, 08:00 PM Brussels, 02:00 PM EST and 11:00 AM PST. For time zone arithmetic, you can consult the world clock site or use this time zone converter.

Take a look at the source code and please provide your questions or feedback on the E-VAN Google Group. You can also ask your questions during or after the session, but it would be nice if we could consolidate some input in advance. So don't be afraid to get your questions out there :-). Again, this should be a very learningful experience. Hope to see you there.