package User; import android.arch.lifecycle.LiveData; import android.arch.persistence.room.Dao; import android.arch.persistence.room.Insert; import android.arch.persistence.room.OnConflictStrategy; import android.arch.persistence.room.Query; @Dao public interface UserDao { @Insert(onConflict = OnConflictStrategy.REPLACE) void insert(UserData userData); @Query("DELETE FROM users") void deleteAllUsers(); @Query("SELECT * FROM users WHERE name = :userName LIMIT 1") LiveData getUserLiveData(String userName); @Query("SELECT * FROM users WHERE name = :userName LIMIT 1") UserData getUserData(String userName); }