KARL Room Storage/com.karl.room/RoomDataStorage

RoomDataStorage

class RoomDataStorage(karlDao: KarlDao, ioDispatcher: CoroutineDispatcher = Dispatchers.IO) : DataStorage(source)

Room-based implementation of the DataStorage interface for the KARL framework.

This class provides a robust, production-ready data persistence layer using Android's Room database library. It implements the complete DataStorage contract with support for user data isolation, efficient querying, and transactional safety guarantees.

Database Architecture:

Entity-Based Design: Uses Room entities to map domain models to SQL tables
DAO Pattern: Leverages Data Access Objects for type-safe database operations
Transaction Support: Ensures atomic operations for data consistency
Migration Support: Built-in schema versioning for database evolution

Performance Characteristics:

Thread Safety: All database operations are dispatched to IO thread pool
Connection Pooling: Leverages Room's built-in connection management
Query Optimization: Uses indexed queries for efficient data retrieval
Memory Efficiency: Minimal object allocation through entity reuse

Data Isolation: User data is strictly partitioned by userId, ensuring complete privacy isolation between different users of the same application. This supports multi-user scenarios and privacy compliance requirements.

Coroutine Integration: All operations are implemented as suspending functions that work seamlessly with Kotlin coroutines. Database operations are automatically dispatched to the IO dispatcher to prevent blocking the main thread.

Error Handling: The implementation provides robust error handling with appropriate exception propagation and recovery mechanisms for database-related failures.