cqrs

Command Query Responsibility Segregation (CQRS) was not something that I easily understood. Martin Fowler did a thorough job of explaining it in often-linked post from 2011. However, I still did not...

Just when I thought I was in a good place to carry forward with retrieving a persisted entity and then modifying its values, I started looking intently into the CQRS Journey on MSDN. While reading...

A simple update of an object is as complex as adding a new instance of the object, which means it is both straight forward and laden with all kinds of caveats and unlying processes. As with creating...

For a while, I have been battling with where validation should occur, and who is responsible for ensuring that the information in a command is good data. For the first layer of data validation, I am...

Creating a patron (by which I mean, issuing a command such that some process somewhere will instantiate an actual Patron entity, and perhaps persist it in some useful manor) is all well and good,...

The first thing that I learned with Dependency Injection is that it encourages a mindset of "I'll figure that out that later." This allows me to put in the bare minimum for what might pass a test,...

As I have been working on the Vigil project, I have been accidentally stumbling onto various patterns. I will go in search of a way to solve some particular problem, and end up losing several hours...