is it possible to annotate this Entity?

bzzz · **Joined:** Fri Oct 28, 2005 6:56 am **Posts:** 1

i have a rather complicate Entity, the code excerpt below

Code:

public class Region 
{
    @Id(generate = GeneratorType.AUTO)
    private Long id;
    
    //how can I annotate this ?!?!
    private Map<Region, Set<Region>> regionGroup;
}

i tried to annotate with OneToMany and MapKey alone (default JoinTable) and with many variations of a customized @JoinTable, but no success ... it just doesnt work :(

P.S.
it works fine with an additional entity like below

Code:

public class RegionSet 
{
    @Id(generate= GeneratorType.AUTO)
    private Long id;

    @OneToMany(targetEntity=Region.class)
    private Set<Region> regions;
}

Code:

@OneToMany(targetEntity = Region.class)
@MapKey()
private Map<RegionImpl, RegionSet> regionGroup;

many thx in advance ,
paul

emmanuel · **Posted:** Fri Oct 28, 2005 8:18 pm

Collections of collections are not supported by Hibernate