Automatically refresh parent when merge on child?

[Flood]

I have a parent/child relationship such that the parent contains a List of child elements. I am trying to get it so when a child element is updated, the parent's List of child elements is automatically updated. So far, I can't get this to work - it will only update the parent List on the second update of a child. I have tried CascadeType.ALL/CascadeType.REFRESH on both the child and the parent but neither seem to work. However, if I update the child element, then call em.refresh(parent), it works properly, or if I execute a query to retrieve the children (FROM child WHERE parent_id = ?), it works properly as well. But I would like this to happen automatically, to save me some typing and also because I think this is how it is supposed to work.

public class Player implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    private String firstName;
    private String lastName;

    @Temporal(TemporalType.DATE)
    private Date birthDate;

    @OneToOne(cascade=CascadeType.REFRESH)
    private Team team;

...

and here is the parent:

public class Team implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    private String name;
    private int wins;
    private int losses;

    @OneToMany(mappedBy="team",cascade = CascadeType.ALL)
    private List<Player> players;
    ....

I am trying to change the Team of a Player by changing player.team to NULL, removing the Player from the team. The weird thing is that changing Player.team to a certain team (adding a player to a team) works fine, and the change is shown immediately, but when REMOVING a player from a team (changing Player.team to NULL or another team) the change doesn't happen until the NEXT change to a player is made. BUT, after removing a player from a team, executing a query to retrieve a list of players on the team returns the correct list, but getting a list of players through Team.getPlayers() does not.

Any ideas?

...Let me know if you need to see any more code/if this wasn't clear.

[prabodhs]

I am not sure about your refreshing problem but one think looks incorrect to me is mapping, one side you have defined one-to-one mapping while other side you have defined one-to-many,
this style of mapping is typically recommended for bidirectional one-to-one mapping with many-to-one side of mapping set to unique.

Please make sure you have mapped as desired