gradle
implementation 'androidx.room:room-runtime:2.4.0'
annotationProcessor 'androidx.room:room-compiler:2.4.0'
@Entity(tableName = "users")
public class User {
@PrimaryKey
private int id;
private String name;
}
@Dao
public interface UserDao {
@Insert
void insert(User user);
@Delete
void delete(User user);
}
@Database(entities = {User.class}, version = 1)
public abstract class AppDatabase extends RoomDatabase {
public abstract UserDao userDao();
}
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "app-database")
.build();
UserDao userDao = db.userDao();
User user = new User();
user.setId(1);
user.setName("John Doe");
userDao.insert(user);
