CQRS

The Example

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CQRS cover page

CQRS

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About the Book

UPDATE: 15.08.2013 - I have contracted a copy editor to help me improve the content from a textual perspective, you can expect a new edition soon. Of course if you buy now you would receive all future updates for free as that is the wonderful Leanpub model (same applies for the Kindle version on Amazon).

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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.

About the Author

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Table of Contents

  • Miscellaneous
  • About
  • The cover
  • Lean Startup for Developers
  • To Work Remote
  • 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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