Ejb 3.0 entity relationship (data order)

Question

Hi,
I have got two entity classes (Team, Player) with one-to-many relationship. e.g. A Team can have many players. I have used annotations in my class to set the relationship between them.
Now when I display a team's data, the list of players are not in order as they were inserted in that collection.
insertion ==> team.getPlayers().add(player);
p1 -> T1
p4 -> T1
p2 -> T1
display data ===> team.getPlayers();
p1, p2, p4
My question is how can I maintain the order of data (as they were inserted) in an entity relationship.
Many thanks.
S.A.

Answer 1

You could add a field Player.timeAdded to Player and specify that field in @OrderBy for Team.players, ie.
@Entity public class Team {
@OneToMany(mappedBy="team")
@OrderBy("timeAdded ASC")
public List<Player> getPlayers() {...};
}