Where should exceptions be throwed in a hexagonal architecture?

Question

I'm changing 3 layer architecture to hexagonal architecture. In hexagonal, Should the exception be throwed in the adapter or in the service?

This is code I write. I use Kotlin, Spring, JPA. Once I throw exception in service. (EntityNotFoundException)

give me feedback!

Answer 1

Might this will help!

• Domain Layer

  • InvalidOrderStateException,
  • InsufficientBalanceException

• Application Layer

  • Catching a DatabaseConnectionException and throwing a DataAccessException.

• Adapter Layer

  • EntityNotFoundException
  • DatabaseConnectionException