List index when mapping a List

[rwallace]

I'm trying to map the follwing class with a ManyToMany annotation:

@Entity
public class Book {

 protected List<Contact> m_authors = new ArrayList<Contact> ();

 public List<Contact> getAuthors () {
 return m_authors;
 }

 public void setAuthors (List<Contact> authors) {
 m_authors = authors;
 }
}

In Hibernate, you could specify the column to use for the list index with <list-index column="authorIndex" />, but I can't see any way to specify a list index with EJB3 annotations. Is this possible?

[rwallace]

Sorry, forgot to add the annotations. It should be:

@Entity
public class Book {

 protected List<Contact> m_authors = new ArrayList<Contact> ();

 @ManyToMany(fetch = FetchType.LAZY)
 @JoinTable(table = @Table(name = "revman_book_authors"),
 joinColumns = {@JoinColumn(name = "bookId")},
 inverseJoinColumns = {@JoinColumn(name = "authorId")})
 public List<Contact> getAuthors () {
 return m_authors;
 }

 public void setAuthors (List<Contact> authors) {
 m_authors = authors;
 }
}

[epbernard]

@IndexColumn