Domain-driven Design (DDD) continues to shape how modern software systems are built by bridging the gap between technical teams and business needs. Its emphasis on modeling the domain with precision and clarity is especially relevant in today’s fast-paced, complex software landscape.
This book begins with DDD fundamentals, including core principles, a shared language, and the distinction between strategic and tactical approaches, progressing to strategic concepts like bounded contexts, context mapping, and domain events. It explores the tactical Java implementation detailing entities, value objects, services, aggregates, and repositories. The book also explores testing strategies and architectural validation using ArchUnit/jMolecules. Further, it explores DDD across microservices, monoliths, and distributed systems, integrating with Clean Architecture and SQL/NoSQL data modeling to prevent impedance mismatch. It thoroughly covers applying DDD within Jakarta EE, Spring, Eclipse MicroProfile, and Quarkus.
By the end, you will be equipped to model business logic more effectively, design systems that reflect real-world domains, and integrate DDD seamlessly into enterprise applications. You will gain clarity, confidence, and the tools needed to build software that delivers business value.
What you will learn
● Apply DDD from strategic to tactical design.
● Model aggregates, entities, and value objects in Java.
● Use DDD in monoliths, microservices, and distributed systems.
● Integrate DDD with Spring and Jakarta EE frameworks.
● Apply Clean Architecture principles alongside DDD.
● Structure data modeling for SQL and NoSQL systems.
● Apply bounded contexts, context mapping, and domain events for architecture.
● Unit/integration testing, validate design with ArchUnit/jMolecules.
● Build responsive microservices with Quarkus extensions, reactive programming.
Who this book is for
This book is ideal for Java developers, software architects, tech leads, and backend engineers. It is especially valuable for professionals designing scalable enterprise systems or applying DDD in modern software architecture.
Table of Contents
1. Understanding Domain-driven Design
2. Strategic DDD Concepts
3. Tactical DDD Implementation
4. Testing and Validating DDD Applications
5. DDD in Microservices, Monoliths, and Distributed Systems
6. Integrating DDD with Clean Architecture
7. DDD and Data Modeling
8. Enterprise Java with Jakarta EE
9. Enterprise Java with Spring
10. Eclipse MicroProfile and Domain-driven Design
11. Quarkus and Domain-driven Design
12. Code Design and Best Practices for DDD
13. Final Considerations
Otavio is a passionate architect and software engineer focused on cloud and Java technologies. He has deep expertise in polyglot persistence and high-performance applications in finance, social media, and e-commerce. As a global speaker, he has presented at the most significant international conferences, such as JavaOne, TDC, and Devoxx. He volunteers and helps organize several Java User Groups and meetups around the globe. Otavio is recognized for his Open Source contributions and has received many awards, including all JCP Awards categories and the Duke's Choice Award, to name a few. Otavio is also a distinguished member of the Java Champions and Oracle ACE programs. Otavio loves history, economy, traveling, programming, and real-world languages. He speaks Portuguese, English, Spanish, Italian, and French and is fluent in dad jokes.
