Explain the purpose of a UseCase or Interactor layer
Tests your grasp of separation of concerns. A great answer defines a UseCase as a single, reusable business operation that sits between the ViewModel and Repository. It keeps other layers clean and focused.
Tests your understanding of separation of concerns in a complex app. A senior answer explains that a UseCase (or Interactor) encapsulates a single, discrete business operation. It sits between the ViewModel and Repository layers, orchestrating data from one or more repositories to perform a specific task. This keeps ViewModels free of business logic and Repositories focused only on data. A common red flag is describing UseCases as simple pass-throughs, missing their role in handling complex logic and promoting reusability.
Read the original → developer.android.com
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- #architecture
- #mvvm
- #usecase
- #domain layer
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