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Training overview

There are several DDD related trainings available in the Netherlands. On our training page, we give an overview of these trainings. Read more...

DDD related trainings

There are DDD related several events coming up in The Netherlands, such as the a one-day CQRS workshop by JTeam.

Interview with Allard about CQRS and the Axon Framework

InfoQ has posted an interview with Allard about CQRS and the Axon Framework.

A good read if you ask me.

http://www.infoq.com/articles/cqrs_with_axon_framework

Notice: March meeting rescheduled to March 1st.

The next meeting, containing a presentation about CQRS was scheduled for March 9th. However, Greg Young, one of the masterminds behind CQRS is currently in the Netherlands. We would like to make the most of his presence here, and decided to reschedule the meeting to Monday March 1st.

This also means that Greg is present during the meeting, which should make discussions a lot more interesting.

Hope to see you all on March 1st. Time and location are as usual:
Start 17:30
Food at 18:00
Presentation after food, as long as it takes.

Address:
JTeam, Frederiksplein 1, Amsterdam

Axon Framework – the CQRS framework for Java – version 0.4 released

Posted Sun, 02/21/2010 - 19:34 by Allard Buijze

Last week, I published the 0.4 release of the Axon Framework. Axon helps developers build high performance, scalable and extensible applications using the CQRS pattern. The 0.4 release is a major step towards 1.0, and includes transactional event handling, high-performance caching repositories and easy configuration of event sourcing support. Furthermore, we have also built a demo application that uses Flex to get real-time updates pushed from the server.

March meeting: Command Query Responsibility Segregation

On March 1st, Erik Rozendaal will give a presentation about Command Query Responsibility Seggregation (CQRS).

Command-Query Responsibility Segregation is a technique developed by Greg Young that combines the Event Sourcing pattern with Domain-Driven Design. This provides various benefits, amongst others: a fully encapsulated domain model without the need for any ORM tools, separate query and reporting database, 100% correct historical information, and easy integration with other systems.

cqrs4j, a new framework in support of CQRS architectures

Posted Mon, 12/21/2009 - 13:46 by Allard Buijze

After quite some time of trying-out and developing applications based on the CQRS architecture, I noticed that much of the code involved plumbing and no so much project specific code. I decided to make the architectural code available trough an open source project: cqrs4j

InfoQ on DDD

Posted Wed, 12/02/2009 - 17:28 by Vincent

Two nice articles where posted by InfoQ on DDD:

Context mapping:
http://www.infoq.com/articles/ddd-contextmapping

Value objects:

http://www.infoq.com/presentations/Value-Objects-Dan-Bergh-Johnsson

Happy watching and reading!

January meeting: Domain Driven Design Implemented

The meeting on January 12th will have the topic "Domain Driven Design Implemented".

Here is the summary of the presentation, to be given by Ronald van Rijn (iProfs).

You have read the book, liked the concepts that were explained, and now you want to use these in your next implementation. Unfortunately the book does not give you many pointers on how to implement a Domain Driven Design. It contains serveral code samples but these are a bit dated and not extensive enough to illustrate a complete implementation.

Events for 2010 have been planned

The planning for events in 2010 is available. Now you can all put the events in your agenda. To make things easy we have planned all events on the second tuesday of odd months. The upcoming events box shows them as well.

From now on I will add the event as a linkedin event as well. You can mark the event as interested in or that you will be attending. This will be good for our visibility.

http://events.linkedin.com/Third-DDDNL-meetup/pub/165397

The Advantages of Domain Driven Design

Posted Fri, 11/06/2009 - 10:00 by Ronald van Rijn

At the beginning of this year I have written an article for Java Magazine in which I introduce some of the DDD concepts and show what a Java implementation using these concepts could look like. The article can be downloaded here.

Unfortunately for all you non-Dutch speakers the article is entirely in Dutch. Even my original title (Domain Driven Design Applied) and a lot of English words got lost in translation.