Implementing database adapters
The implementation of database adapters in Clean Architecture provides a clear example of how driver integration differs from framework integration. As discussed earlier, drivers require simpler adaptation patterns than frameworks, typically needing only an interface in the Application layer and a concrete implementation in this outer layer.
Repository interface implementation
Recall from Chapter 5 that our Application layer defines repository interfaces which establish clear contracts for any concrete implementation. These interfaces ensure our core business logic remains independent of storage details:
class TaskRepository(ABC):
"""Repository interface for Task entity persistence."""
@abstractmethod
def get(self, task_id: UUID) -> Task:
"""Retrieve a task...
