CQRS
CQRS
The Example
About the Book
In 2009 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 Command Query Responsibility Segregation (CQRS).
The example project I created based on these discussions was very well received by the community and regarded a good reference project to explain and learn the patterns that make up CQRS. I decided to add the different blog posts I wrote about the example into a single book so it is easy to find and read.
You can find some reviews on Amazon and of course the Kindle version and a paperback version. The source code that the book walks you through is written in C# and can be found on Github.
About the Author
Table of Contents
-
Miscellaneous
- About
- The cover
-
CQRS à la Greg Young
- Queries (reporting)
- Commands (executing behavior on the domain)
- Command Handler
- Internal Events (capturing intent)
- Domain Behavior
- Domain Event
- Internal Domain Event Handler
- The Domain Repository
- Domain Repository Contract
- Data Mining
- External Events (publishing, letting others know)
- Eventual Consistency
- Specifications
- Some other benefits
- Finally
-
Domain Events
- Using domain events for state change
- Getting the state changes
- Loading historical domain events
- The base class
- Aggregate entities
- Finally
- Domain State
- Event Sourcing
- Event Versioning
- Scalability
-
Specifications
- Black box
- The BaseTestFixture
- The BaseTestFixture<TSubjectUnderTest>
- The PresenterTestFixture<TPresenter>
- CQRS and Event Sourcing
- Where is Should?
- Finally
-
Using conventions with Passive View
- Passive View
- The View
- The Presenter
- The Magic
- Reflection
- The Specifications
- The Ubiquitous Language is not Ubiquitous
-
Convention over Configuration
- Configure your Conventions
- Not just for framework code
-
Trying to make it re-usable
- Convention over Configuration
- Why have everything protected?
- Reflect only once
- Conventional limits
- Current state
- Finally
-
Links
- Examples
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