Tạo file CarDao.java - Ví lập trình android quản lý car

package com.vantinviet.adayroionline.db;

import com.vantinviet.adayroionline.viewobject.Car;
import com.vantinviet.adayroionline.viewobject.User;

import java.util.List;

import androidx.lifecycle.LiveData;
import androidx.room.Dao;
import androidx.room.Insert;
import androidx.room.OnConflictStrategy;
import androidx.room.Query;
import androidx.room.Update;

@Dao
public interface CarDao {

    @Insert(onConflict = OnConflictStrategy.REPLACE)
    void insertAll(List<Car> cars);

    @Insert(onConflict = OnConflictStrategy.REPLACE)
    void insert(Car car);

    @Query("SELECT * FROM Car WHERE id = :id")
    LiveData<Car> getCarById(String id);
    @Update(onConflict = OnConflictStrategy.REPLACE)
    void update(Car car);

    @Query("SELECT * FROM Car ORDER BY addedDate desc")
    LiveData<List<Car>> getAllCars();

    @Query("DELETE FROM Car")
    void deleteAll();
    @Query("DELETE FROM Car WHERE id = :id")
    void deleteCarById(String id);

}