ddd-by-examples/library resource

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

5849 stars · 831 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A comprehensive example project demonstrating Domain-Driven Design (DDD) through a real-world library domain, including strategic analysis (event storming, C4 diagrams) and tactical patterns (aggregates, domain events, hexagonal architecture). It is a reference codebase for learning DDD in Java with Spring, Vavr, and ArchUnit.

Use cases

• learn domain-driven design with a real codebase
• see how to model aggregates and domain events in Java
• understand hexagonal architecture / ports and adapters in practice
• study event storming and strategic DDD analysis
• find examples of testing domain logic with ArchUnit
• reference for structuring a Spring Boot DDD project

When to choose

• you want a realistic, well-documented DDD example in Java
• you are teaching or learning tactical and strategic DDD patterns
• you need a reference for hexagonal architecture with Spring

When to avoid

• you need a production-ready library management system
• you work outside the JVM/Spring ecosystem
• you want a framework or library to import rather than study

Facets

learning-resource · maturity maintenance

documentation developer-tools testing tutorials web-development developer-tools jvm domain-driven-design event-storming hexagonal-architecture ports-and-adapters example-project java spring-boot archunit vavr aggregate-design ddd spring

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