Not able to get query results using Room persistence

Question

I am developing an Android app using the Room persistence library. I have a User and a Car entity

@Entity(tableName = \"users\")
public class User {

    @Primar         


        

Answer 1

Columns returned by the query: id, name, id, userId, brand. Fields in com.foodtec.roomdemo.data.models.UserWithCar: user_id, user_name, car_id, car_userId, car_brand.

Error indicates that, columns returned by query is different from Pojo class. It should be the same. Alternatively you can map your Pojo variable to column name using @ColumnInfo annotation.

For example,

@PrimaryKey
@NonNull
@ColumnInfo(name = "user_id")
private int id;

This way, id will be mapped to user_id.