JPA Inheritance

[videanuadrian]

Hi all,
i have some problems with JPA Inheritance.
i have one Entity named Person

@Entity
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="personType",discriminatorType=DiscriminatorType.INTEGER)
@Table(name="persons")
public class Person implements Serializable{

   /* normally i should have something like 
    *private List<EmailAddress> emailAddresses;
    *private List<Phone> phones;
    *
    * setters and getters here 
    */

 ... bla bla bla ...


}

and two other entities that extends Person (Client

@Entity
@DiscriminatorValue("1")
public class Client extends Person {
............................
}

and Contact

@Entity
@DiscriminatorValue("0")
public class Contact extends Person {
    private static final long serialVersionUID = 1L;
..................................
}

). Each Person is in a OneToMany relationship with other two entities: Phone and EmailAddress.

Normally I should have inside Person class setters and getters for phone and emailAddress, but here i have encountered a problem.
Because my entities are mapped in a bidirectional relationship with eachother, so in Phone and EmailAddress i should have a getPerson() method. That is not right, because i needed there a method as getClient() or getContact(), and due that fact i have moved phones and emailAddresses variables (with getters and setters ) from Person to Client/Contact. Yet another problem here :)
In Phone and EmailAddress i have :

 @ManyToOne
    @JoinColumn(name="person_id")
    public Client getClient(){
        return this.client;
    }

    public void setClient(Client c){
        this.client = c;
    }

    @ManyToOne
    @JoinColumn(name="person_id")
    public Contact getContact(){
        return this.contact;
    }

    public void setContact(Contact c){
        this.contact = c;
    }

and when i compile i get
Caused by: org.hibernate.MappingException: Repeated column in mapping for entity: xxx.vs.common.hibernate.entities.virtual.EmailAddr ess column: person_id (should be mapped with insert="false" update="false")

I can fix this, but the question is : is this the appropriate way to achieve that ? Or i have to act somehow different ?

Thanks in advance.

[videanuadrian]

nobody?
anybody?