Designing Hexagonal Architecture With Java Pdf [repack] «2024-2026»

record CreateProductCommand(String name, double price, String currency) {} }

// application/port/in/CreateProductUseCase.java (Incoming Port) package com.example.application.port.in; import com.example.domain.model.Product; public interface CreateProductUseCase { Product execute(CreateProductCommand command); designing hexagonal architecture with java pdf

In traditional layered architecture: Web → Service → Repository → Database record CreateProductCommand(String name

@Override public Optional<Product> findById(String id) return jpaRepository.findById(id).map(this::toDomain); var service = new CreateProductService(mockRepo)

private Product toDomain(ProductJpaEntity entity) ...

class CreateProductServiceTest @Test void shouldSaveProduct() ProductRepository mockRepo = mock(ProductRepository.class); var service = new CreateProductService(mockRepo); var command = new CreateProductCommand("Mouse", 25, "USD"); Product result = service.execute(command); verify(mockRepo).save(any(Product.class)); assertEquals("Mouse", result.name());