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Today, I released version 0.6 of the Axon Framework. 0.6 has many new features and is another step towards full production readiness. There is still some work to do, but first, let’s take a look at what has changed… Continue reading Axon Framework 0.6 released
Besides some changes to existing building blocks, such as the event bus, which is now much more powerful, the 0.5 version also includes some new features. Read on to find out more. Continue reading Axon Framework 0.5 released Some people have asked be what I was working on lately, since they didn’t see any blogs from me the last months. Well, my life has been heavily focused on the investigation of all the capabilities of a very simple pattern: CQRS. As I unleashed its power on a project, I noticed that most of it is quite generic. That was my trigger to build the Axon Framework, a CQRS Framework for Java. Read on to find out more… Continue reading What I have been doing lately – CQRS, CQRS and Axon
Read on to find out more. Continue reading Axon Framework – the CQRS framework for Java – version 0.4 released jQuery(document).ready(function($) { window.setTimeout(‘loadFBShareMe_997()’,5000); }); function loadFBShareMe_997(){ jQuery(document).ready(function($) { $(‘.dd-fbshareme-997′).remove();$(‘.DD_FBSHAREME_AJAX_997′).attr(‘width’,’53′);$(‘.DD_FBSHAREME_AJAX_997′).attr(‘height’,’69′);$(‘.DD_FBSHAREME_AJAX_997′).attr(‘src’,'http://widgets.fbshare.me/files/fbshare.php?url=http://www.gridshore.nl/2010/01/27/cqrs-designing-domain-events/&size=large’); }); } Command-Query Responsibility Segregation (CQRS) is slowly but steadily gaining ground as an architecture that helps developers to develop scalable, extensible and maintainable applications. Events play a major role in this architecture, and the way you design these events greatly influence the extensibility of [...] Command Query Responsibility Segregation (CQRS) is an architectural style that makes a clear distinction between commands, which tell an application to do something, and queries, which are requests for information from an application. This distinction comes from the fact that the requirements (and thus also the model) for the execution and validation of commands are significantly different than those for queries. Events play an important role in the synchronization of application state resulting from executed command. Applying a CQRS style architecture involves the development of quite a lot of “plumbing” code: event dispatching, asynchronous event processing, transactions, etc. cqrs4j, an Apache 2 licensed open source framework, takes care of all the plumbing for you. Read on to find out how… Continue reading CQRS made easy with cqrs4j Implementing an equals method in Java can be quite complicated. Fortunately there are numerous document around the web with useful tips, hints and frameworks to assist you in this process. However, an implementation of the equals method that is technically correct doesn’t have to make any sense functionally. In Domain Driven Design, your domain model implementation is the beating heart of your application. Everything has to make perfect (functional) sense in there. Having good equals methods is of vital importance there. In this article, I will elaborate on some common pitfalls you can encounter when implementing the equals method, as well as some sensible guidelines. Continue reading Domain Driven Design and the equals method
Continue reading Designing the Repository interface |
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Today, I finalized the 0.5 release of the Axon Framework. There is quite a number of changes since the 0.4 version. The 0.5 version is a major step towards production readiness of the framework.
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.
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