DDD with Spring Boot
DDD with Spring Boot
Implementing Robust, Scalable Applications Using Strategic and Tactical DDD Patterns
About the Book
This book is a comprehensive guide to building robust, scalable, and maintainable enterprise applications by applying the principles of Domain-Driven Design (DDD) with Spring Boot and functional programming techniques. It provides developers with a strategic framework to manage and navigate the complexities of modern software development, placing deep domain knowledge at the core of the architecture.
By focusing on both strategic and tactical design patterns, the book empowers you to create systems that are not only technically sound but also genuinely aligned with business needs. It shifts the focus from purely technical implementation to capturing the intricate rules and processes of the business domain you are working in.
Key Learnings and Topics Covered:
- DDD Fundamentals: Dive deep into the core principles of DDD, including the use of a Ubiquitous Language to bridge the gap between technical and business teams. Learn to model complex business processes accurately.
- Strategic & Tactical Design: Master strategic patterns like Bounded Contexts and Context Mapping to decompose large systems into manageable, loosely coupled components. Implement tactical patterns such as Aggregates, Entities, and Value Objects to structure your domain logic effectively.
- Spring Boot Implementation: Discover how Spring Boot's features, like dependency injection and the repository pattern, naturally support DDD principles. The book provides practical examples for implementing aggregates, data access layers, and domain model validation.
- Event-Driven Architecture: Learn to build reactive and resilient systems by implementing event-driven architectures. The book covers creating, publishing, and handling domain events within a Spring Boot application to enable asynchronous communication and loose coupling.
- Functional & Reactive Programming: Enhance your domain models with functional programming concepts. Explore immutability to create predictable and thread-safe domain objects, and leverage reactive programming with Spring WebFlux to build responsive, non-blocking applications.
About the Author
Table of Contents
- Domain-Driven Design with Spring Boot
- Implementing Robust, Scalable Applications Using Strategic and Tactical DDD Patterns
- Table of Contents
- Chapter 1: Introduction to Domain-Driven Design
- What is Domain-Driven Design?
- Strategic Design Patterns
- Tactical Design Patterns in Domain-Driven Design
- Implementing DDD in Spring Boot
- Domain Model Best Practices
- Practical DDD Exercise
- Chapter Summary
- Chapter 2: Strategic Design Patterns
- Introduction to Strategic Design
- Bounded Contexts in Domain-Driven Design
- Context Mapping Patterns in Domain-Driven Design
- Strategic Model Decomposition
- Implementing Strategic Patterns with Spring Boot
- Practical Context Mapping Example
- Chapter Summary
- Chapter 3: Bounded Contexts and Context Mapping
- Introduction to Bounded Contexts
- Identifying Bounded Context Boundaries
- Context Mapping Patterns
- Implementing Context Boundaries in Spring Boot
- Context Communication Strategies
- Practical Context Mapping Exercise
- Chapter Summary
- Chapter 4: Domain Modeling Techniques
- Introduction to Domain Modeling
- Value Objects and Entities in Domain-Driven Design
- Aggregate Patterns in Domain-Driven Design
- Bounded Contexts in Domain-Driven Design
- Domain Event Modeling
- Strategic Design Techniques
- Chapter Summary
- Chapter 5: Implementing Aggregates in Spring Boot
- Introduction to Domain Aggregates
- Designing Aggregate Root Classes
- Implementing Aggregate Validation
- Persistence Strategies for Aggregates
- Domain Events and Aggregate Lifecycle
- Advanced Aggregate Patterns
- Chapter Summary
- Chapter 6: Event-Driven Architecture with Domain Events
- Introduction to Domain Events
- Spring Event Mechanisms
- Implementing Domain Event Publishers
- Event Handlers and Subscribers
- Transactional Event Publishing
- Advanced Event Patterns
- Chapter Summary
- Chapter 7: Repository Patterns and Data Access
- Introduction to Repository Patterns
- Spring Data JPA Repositories
- Custom Repository Implementations
- Transaction Management in Spring Boot
- Performance Optimization in Repository Patterns
- Practical Repository Patterns Case Study
- Chapter Summary
- Chapter 8: Microservices and Bounded Context Integration
- Understanding Bounded Contexts in Microservices
- Designing Microservice Boundaries
- Inter-Service Communication Patterns
- Data Consistency in Distributed Systems
- Service Discovery and Load Balancing
- Resilience and Circuit Breaking
- Chapter Summary
- Chapter 9: Functional Programming Fundamentals
- Introduction to Functional Programming Paradigm
- Lambda Expressions and Method References
- Functional Interfaces in Java
- Stream API: Data Transformation and Processing
- Function Composition and Higher-Order Functions
- Error Handling in Functional Programming
- Chapter Summary
- Chapter 10: Immutable Domain Models
- Introduction to Immutability in Domain-Driven Design
- Implementing Immutable Value Objects
- Defensive Copying and Immutability
- Functional Transformations of Domain Models
- Spring Boot Support for Immutable Models
- Case Study: Building an Immutable Order Management System
- Chapter Summary
- Chapter 11: Functional Validation Strategies
- Functional Validation Fundamentals
- Validation Monads in Practice
- Validation with Vavr Library
- Domain-Specific Validation Rules
- Validation in Spring Boot Context
- Practical Validation Case Study
- Chapter Summary
- Chapter 12: Reactive Programming with Spring WebFlux
- Introduction to Reactive Programming
- Spring WebFlux Foundations
- Creating Reactive REST Endpoints
- Error Handling in Reactive Systems
- Reactive Data Access with Spring Data and WebFlux
- Testing Reactive Applications
- Chapter Summary
- Domain-Driven Design with Spring Boot
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