android-data-layer

Structure the Android data layer by defining Room entities and DAOs for local database operations, wrapping DataStore with type-safe sealed class keys, and exposing repositories as facades to ensure clean data flows and testability.

Migrate SharedPreferences to DataStore by defining type-safe sealed class keys and leveraging DataStore migration APIs to securely transfer existing preference data without losing user configurations.

Handle repository errors by wrapping data operations in a Result pattern, which provides type-safe success and error states to propagate exceptions cleanly across Android clean architecture data flows.

Yes, the approach enforces Room migration patterns for schema evolution and includes test scaffolding for DAOs and repositories, ensuring structured local storage remains robust and verifiable during development.

You need a Room database migration whenever you modify existing entity schemas, add columns, or change constraints, ensuring structured local storage upgrades without clearing user data during app updates.

Test repository and DataStore patterns using provided test scaffolding that validates data flows, DAO queries, and dependency injection setups to ensure your clean architecture data layer behaves reliably.