查询嵌入式元素＆amp; Android Room中的外键元素

Question

我对Room数据库的工作方式有了新的认识，并且想知道如何查询以下内容。

1. 查询基于其中包含嵌入对象的对象 在嵌入对象上。

2. 查询包含外键的对象

@Entity

@Entity
public class Car {
    @PrimaryKey()
    private String id;
    @Embedded()
    private Engine engine
    @Ignore
    private List<Tire> tires
    ... //relevant getters and setters

}

public class Engine {
    private String id;
    private String type;
    private String name;
}


@Entity(foreignKeys = {@ForeignKey(
  entity = Car.class, parentColumn = "id", childColumn ="carIdFk")
}
public class Tire { 
   @PrimaryKey(autogenerated=true)
   private int id;
   private String model;
   private String rimModel;
   private String cardIdFk;
}

@Dao
public interface CarDao {
//Need a query to retrieve all cars where engine id == <somevalue>
//Need a query to retrieve all cars where tire model == <somevalue>
}

@Dao
public interface TyreDao {
//Need a query to retrieve all cars where tire id == <somevalue>
}