DomainEventListener located under application or Catalog module fails modulith verification with LoanCreated and Closed from Lending module

[paguerre3]

@maciejwalkowiak I really enjoyed the Video but where u able to fully test it? Note I like the concepts provided and agree in most of them but checking DomainEventListener located under application or Catalog module fails modulith verification with the Loan Events from Lending module:

• Module 'catalog' depends on non-exposed type library.lending.domain.LoanCreated within module 'lending'!
  LoanCreated declares parameter LoanCreated.handle(LoanCreated) in (DomainEventListener.java:0)

Note I logged modules to see further details and I saw no expose, I checked modules dependecies and saw:

Lending

Logical name: lending
Base package: library.lending
Direct module dependencies: none
Spring beans:
o ….application.RentBookUseCase
o ….application.ReturnBookUseCase
o ….domain.LoanRepository

Catalog

Logical name: catalog
Base package: library.catalog
Direct module dependencies: none
Spring beans:
o ….application.AddBookToCatalogUseCase
o ….application.DomainEventListener
o ….application.RegisterBookCopyUseCase
o ….domain.BookRepository
o ….domain.CopyRepository
o ….infrastructure.OpenLibraryBookSearchService

So how can we see LoanCreated and Closed (from Lending Module) in the the Catalog module / application : DomainEventListener if Modulith verification fails because they aren't exposed?

[paguerre3]

@maciejwalkowiak
As a Quick solution I added @NamedInterface in the classes exposed into the Catalog module from Lending module, e.g.:

import org.springframework.modulith.NamedInterface;

@NamedInterface
public record LoanClosed(CopyId copyId) {
}

@maciejwalkowiak ***Please add me as a collaborator and I can commit the solution if u like or explain a better solution because now i see DO Events from domain of Lending exposed to the aplication Layer of Catalog ***

Result:

Logical name: lending
Base package: library.lending
Named interfaces:

• NamedInterface: name=<>, types=[]
• NamedInterface: name=domain, types=[ l.d.CopyId, .l.d.LoanClosed, l.d.LoanCreated ]