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patterns

A 4-post collection

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Why use domain events?

Nota bene: this instalment in the Ports and Adapters with Command Handlers series is code-heavy, and isn't going to make much sense unless you've read the »

Bob Gregory on python, oo, patterns, architecture 19 September 2017

Commands and Queries, Handlers and Views

In the first and second parts of this series I introduced the Command-Handler and Unit of Work and Repository patterns. I was intending to write about »

Bob Gregory on python, architecture, patterns, cqrs 13 September 2017

Repository and Unit of Work Pattern in Python

In the previous part of this series we built a toy system that could add a new Issue to an IssueLog, but had no real behaviour »

Bob Gregory on python, patterns, oo, architecture 08 September 2017

Ports and Adapters with Command Handler pattern in Python

The term DDD comes from the book by Eric Evans: "Domain-Driven Design: Tackling Complexity in the Heart of Software". In his book he describes »

Bob Gregory on architecture, patterns, oo, python 07 September 2017
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