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 Designing Hexagonal Architecture with Java

You're reading from   Designing Hexagonal Architecture with Java Build maintainable and long-lasting applications with Java and Quarkus

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Product type Paperback
Published in Sep 2023
Publisher Packt
ISBN-13 9781837635115
Length 438 pages
Edition 2nd Edition
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Author (1):
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Davi Vieira Davi Vieira
Author Profile Icon Davi Vieira
Davi Vieira
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Toc

Table of Contents (24) Chapters Close

Preface 1. Part 1: Architecture Fundamentals
2. Chapter 1: Why Hexagonal Architecture? FREE CHAPTER 3. Chapter 2: Wrapping Business Rules inside Domain Hexagon 4. Chapter 3: Handling Behavior with Ports and Use Cases 5. Chapter 4: Creating Adapters to Interact with the Outside World 6. Chapter 5: Exploring the Nature of Driving and Driven Operations 7. Part 2: Using Hexagons to Create a Solid Foundation
8. Chapter 6: Building the Domain Hexagon 9. Chapter 7: Building the Application Hexagon 10. Chapter 8: Building the Framework Hexagon 11. Chapter 9: Applying Dependency Inversion with Java Modules 12. Part 3: Becoming Cloud-Native
13. Chapter 10: Adding Quarkus to a Modularized Hexagonal Application 14. Chapter 11: Leveraging CDI Beans to Manage Ports and Use Cases 15. Chapter 12: Using RESTEasy Reactive to Implement Input Adapters 16. Chapter 13: Persisting Data with Output Adapters and Hibernate Reactive 17. Chapter 14: Setting Up Dockerfile and Kubernetes Objects for Cloud Deployment 18. Part 4: Hexagonal Architecture and Beyond
19. Chapter 15: Comparing Hexagonal Architecture with Layered Architecture 20. Chapter 16: Using SOLID Principles with Hexagonal Architecture 21. Chapter 17: Good Design Practices for Your Hexagonal Application 22. Index 23. Other Books You May Enjoy

Bootstrapping the Domain hexagon

The hexagonal application project that we will start in this chapter is actually a continuation of the topology and inventory system that we’ve developed in the last few chapters. However, the difference here is that we will augment some of the system’s capabilities and use the Java Platform Module System (JPMS) to encapsulate the Domain hexagon in a Java module.

To get started with bootstrapping the Domain hexagon, let’s create a multi-module Maven project, as follows:

  1. First, we will create a parent project called topology-inventory by executing the following code:
    mvn archetype:generate \
    -DarchetypeGroupId=org.codehaus.mojo.archetypes \
    -DarchetypeArtifactId=pom-root \
    -DarchetypeVersion=RELEASE \
    -DgroupId=dev.davivieira \
    -DartifactId=topology-inventory \
    -Dversion=1.0-SNAPSHOT \
    -DinteractiveMode=false

    We use the archetype:generate Maven goal to generate a Maven root project for the system. It creates a pom.xml file...

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