Series

Application Boundaries and Persistence

Ports, composition, repositories, mapping, reconstitution, and concurrency at the storage boundary.

  1. A Hexagon Is Not a Directory Layout
  2. A Composition Root Makes Choices Visible
  3. A Repository Is a Domain Collection, Not an ORM Wrapper
  4. A Mapper Connects Two Honest Models
  5. Loading State Is Not Creating It Again
  1. A Version Column Is Not Concurrency Control