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Domain-Driven Design in PHP

Domain-Driven Design in PHP

By : Keyvan Akbary, Carlos Buenosvinos, Christian Soronellas
4.3 (9)
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Domain-Driven Design in PHP

Domain-Driven Design in PHP

4.3 (9)
By: Keyvan Akbary, Carlos Buenosvinos, Christian Soronellas

Overview of this book

Domain-Driven Design (DDD) has arrived in the PHP community, but for all the talk, there is very little real code. Without being in a training session and with no PHP real examples, learning DDD can be challenging. This book changes all that. It details how to implement tactical DDD patterns and gives full examples of topics such as integrating Bounded Contexts with REST, and DDD messaging strategies. In this book, the authors show you, with tons of details and examples, how to properly design Entities, Value Objects, Services, Domain Events, Aggregates, Factories, Repositories, Services, and Application Services with PHP. They show how to apply Hexagonal Architecture within your application whether you use an open source framework or your own.
Table of Contents (16 chapters)
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14
Bibliography
15
The End

Characteristics


Domain Events are ordinarily immutable, as they're a record of something in the past. In addition to a description of the Event, a Domain Event typically contains a timestamp for the time the Event occurred and the identity of Entities involved in the Event. Additionally, a Domain Event often has a separate timestamp indicating when the Event was entered into the system, along with the identity of the person who entered it. When useful, an identity for the Domain Event can be based on some set of these properties. So, for example, if two instances of the same Event arrive at a node, they can be recognized as the same.

The essence of a Domain Event is that you use it to capture things that can trigger a change to the state of the application you're developing or to another application in your Domain that's interested in those changes. These Event objects are then processed to cause changes to the system and stored to provide an audit log.

Naming Conventions

All Events should...

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