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This is a personal sand box
Home Page: cre8ivethought.com/blog/index
This project forked from marknijhof/fohjin
This is a personal sand box
Home Page: cre8ivethought.com/blog/index
x86 vs x64 When running the example on a x86 machine you have to go into the /Lib/sqlite/bin/ folder and copy the three System.Data.SQLite.* files into the /Lib/sqlite/bin/x64/ folder. This is because I am developing on a x64 system. An interesting fact is that the TestDriven.Net test runner does actually run in x86 mode, so the SQLite reference in the Test project is the the x86 SQLite version already. Resharper test runner acts the same. If you have any questions or other feedback then I would love to hear about it at [email protected] I have also written a few blog posts about this CQRS example application: CQRS a la Greg Young Link: http://cre8ivethought.com/blog/2009/11/12/cqrs--la-greg-young Intro: I have had the pleasure of spending a 2 day course and many geek beers with Greg Young talking about Domain-Driven Design specifically focussed on the Command and Query Responsibility Segregation (CQRS) pattern. Greg has taken Domain-Driven Design from how Eric Evans describes it in his book and has adapted mostly the technical implementation of it. CQRS Domain Events Link: http://cre8ivethought.com/blog/2009/11/20/cqrs-domain-events Intro: As you may have seen in my previous post “CQRS à la Greg Young” now our domain aggregate root is responsible for publishing domain events indicating that some internal state has changed. In fact state changes within our aggregate root are only allowed through such domain events. CQRS Domain State Link: http://cre8ivethought.com/blog/2009/12/08/cqrs-domain-state Intro: This morning Aaron Jensen asked a really interesting question on Twitter “Should Aggregate Roots en Entities always keep their state if it is not needed for business decisions? Is firing events and relying on the reporting store enough?”. Specifications <-- explaining the base test fixture class Link: http://cre8ivethought.com/blog/2009/12/22/specifications Intro: I received a couple questions about the Specification Framework that I use in the CQRS example and thought lets talk about that for a bit. The first thing that should be underlined is that this is not a framework, they are a few classes and extension methods that rely on NUnit for the actual assertions and and Moq for mocking of the dependencies. I got the initial bits from Greg Young at his DDD course which I extended a little bit for my specific needs. CQRS Event Sourcing Link: http://cre8ivethought.com/blog/2010/02/05/cqrs-event-sourcing Intro: So after reading this blog post by Rob Conery about Reporting In NoSQL where he explains very well what the problem is when using a RDBMS for persisting the state of your domain, or really anything that is written with Object Orientation in mind. CQRS Event Versioning Link: http://cre8ivethought.com/blog/2010/02/09/cqrs-event-versioning Intro: When using Event Sourcing you store your events in an Event Store. This Event Store can only insert new events and read historical events, nothing more nothing less. So when you change your domain logic and also the events belonging to this behavior, then you cannot go back into the Event Store and do a one time convert of all the historical events belonging to the same behavior. The Event Store needs to stay intact, that is one of its powers. CQRS Scaling Link: http://cre8ivethought.com/blog/2010/02/09/cqrs-scalability Intro: Scalability is one of the several different benefits you gain from applying CQRS and Event Sourcing to your application architecture. And that is what I wanted to take a closer look at in this post. Using conventions with Passive View Link: http://cre8ivethought.com/blog/2009/12/19/using-conventions-with-passive-view Intro: I was reading Ayende’s blog post about building UI based on conventions and thought; hey I have something similar in my CQRS example. And since this is the least interesting part of the whole example I guess it will be missed by many, and I can’t let that happen. -Mark
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