Hibernate Map Mapping Problem

Question

Hi I am trying to Persist a Map in Hibernate as follows:

public class Product{
    @OneToMany
    @MapKey(name="id")
 private Map<Company,ProductCompany> productCompanies=new HashMap<Company,ProductCompany>();

}

public class Company{
 private int id;
}
public class ProductCompany(){
 @ManyToOne
 private Product product;
 @ManyToOne
 private Company company;
}

Any idea what the correct annotation would be for doing this mapping? At the moment it stores the keyset as ints...not as Company objects.

Thxs.

Similar post: http://stackoverflow.com/questions/2327971/how-do-you-map-a-map-in-hibernate-using-annotations — Péter Török, Feb 25 '10 at 14:44
That doesnt help...I am mapping an Entity as the key not a String — DD., Feb 25 '10 at 15:00

score 0 · Accepted Answer · answered Feb 25 '10 at 16:06

0

Try using company as your MapKey:

public class Product{
@OneToMany
@MapKey(name="company")
private Map<Company,ProductCompany> productCompanies=new HashMap<Company,ProductCompany>();
}

answered Feb 25 '10 at 16:06

pedromarce

5,651
2
27
27

score -1 · Answer 2 · answered Dec 16 '13 at 14:57

-1

Try to build your project , before executing commands

answered Dec 16 '13 at 14:57

lahbib

119
1
6

Hibernate Map Mapping Problem

2 Answers2