RSSuper/tasks/native-business-logic-migration/07-implement-android-database-layer.md

07. Implement Android database layer (Room)

meta: id: native-business-logic-migration-07 feature: native-business-logic-migration priority: P0 depends_on: [native-business-logic-migration-04] tags: [implementation, android, database]

objective:

• Implement database layer using Room for Android

deliverables:

• RssDatabase.kt
• SubscriptionEntity.kt
• FeedItemEntity.kt
• SearchHistoryEntity.kt
• SubscriptionDao.kt
• FeedItemDao.kt
• SearchHistoryDao.kt
• Database migrations
• FTS virtual table implementation

tests:

• Unit: Test CRUD operations with Room Testing
• Unit: Test relationships
• Unit: Test FTS queries
• Integration: Test database migrations

acceptance_criteria:

• Room database configured
• All entities annotated
• DAOs with proper queries
• FTS search working
• Migrations implemented
• TypeConverters for custom types

validation:

• Run ./gradlew test
• Verify with Room Inspection

notes:

• Use Room 2.6+
• Implement FTS using SQLite FTS5
• Use @Transaction for multi-entity operations