Android房间如何自动生成顺序计数

@Entity(tableName = "Rooms")
public class Room {
    @PrimaryKey(autoGenerate = true)
    private int id;

    private String name;
    private String description;
    // ...
}

Room room = new Room();
room.setName("Room 1");
room.setDescription("This is room 1.");
// ...

AppDatabase.getInstance(context).roomDao().insert(room);

int generatedId = AppDatabase.getInstance(context).roomDao().insert(room);

List<Room> rooms = AppDatabase.getInstance(context).roomDao().getRoomsSortedById();