java-architecture

Structure a Spring Boot 3 project by creating separate Maven modules for domain, application, api, and infra layers, implementing a type-safe dispatcher for CQRS without reflection, and enforcing clear module dependency rules for maintainable codebases.

Enforcing clean architecture in a Java 21 application requires codifying domain, application, api, and infra layer separation with explicit responsibilities, ensuring a domain-free domain layer and transactional use cases to standardize project structure.

Yes, you can use MapStruct mappers and RFC 7807 error responses in a multi-module Maven setup by applying centralized error handling with DomainException and GlobalExceptionHandler across your standardized Java Spring Boot architecture.

No, the type-safe CQRS dispatcher requires no reflection, using explicit handlers to manage command and query separation within the application layer of your Spring Boot 3 multi-module architecture.

A standardized architectural blueprint for Java Spring services solves inconsistent codebases by defining mandatory architectural standards, enabling consistent domain/application/api/infra separation and error handling across new modules.

Avoid hexagonal architecture for simple Java Spring Boot applications where the overhead of multi-module Maven separation, explicit CQRS dispatchers, and strict domain-free domain layers outweighs maintainability benefits.