Let's say Factory.java and Product.java are entity classes.
There is a one-to-many unidirectional relationship from Factory to Product.
@Entity
public class Factory implements Serializable {
@Id
private Long id;
// This is a collection of Product ids. How to map this???
private List<Long> productIds;
......
}
@Entity
public class Product implements Serializable {
@Id
private Long id;
......
}
My question is: how to write the mapping metadata for Factory.productIds?
(I know List< Long > can't be persisted. But how can JPA solve this simple case?)
TIA.
