Hexagonal Architecture — Implementation in Java

In this tutorial, we’ll walk through a simple implementation of the hexagonal architecture. Alistair Cockburn proposed this concept in 2005.

This architecture is also called “Ports and Adapters” and “Object Structural”.

We’ll go through the concepts first and then learn the implementation of this architecture using Java.


Hexagonal Architecture defines that an application’s business logic should be isolated from the external applications.

Based on this concept, we can divide our application into 3 parts. The business logic will be the inside of an application. The user and server sides of the application would be the outside of an application.

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Hexagonal Architecture — Implementation in Java