You're reading from Designing Hexagonal Architecture with Java An architect's guide to building maintainable and change-tolerant applications with Java and Quarkus

Product type Paperback

Published in Jan 2022

Publisher Packt

ISBN-13 9781801816489

Length 460 pages

Edition 1st Edition

Languages

Java

Tools

Quarkus

Concepts

Software Architecture

Author (1):

Davi Vieira

View More author details

Table of Contents (21) Chapters

Preface

1. Section 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. Section 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. Section 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. Chapter 15: Good Design Practices for Your Hexagonal Application

19. Assessments

20. Other Books You May Enjoy

Summary

In this chapter, we revisited the fundamentals of JVM, assessing some of its features related to JIT compilation and AOT compilation. We learned that JIT improves runtime performance, whereas AOT helps boost application startup time, which proves to be an essential feature for frameworks targeting cloud environments, as in this case with Quarkus.

After getting acquainted with some JVM concepts, we moved forward to learn about Quarkus and some important features it offers. Finally, we integrated Quarkus into our already developed hexagonal system topology and inventory. In order to accomplish such an integration, we created a new bootstrap module to act as a bridge between the hexagonal system modules and the development framework. We now know what it takes to integrate Quarkus into a modularized hexagonal application.

In the next chapter, we dive deeper into the integration between Quarkus and hexagonal architecture. We will learn how to refactor use cases and ports from...