How to refresh an Entity instance after persisting its collection?

[kingcu]

I have two entity classes with a bi-directional one-to-many relation between them. Code below:

@Entity
@Name("business")
public class Business extends EntityBase {
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "business")
     private List<Campaign> campaigns = new ArrayList<Campaign>(0);
......
}

@Entity
public class Campaign extends EntityBase {
     
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "BUSINESS_ID")
     private Business business;
......
}

Then, by extending EntityHome, I have CampaignHome:

@Name("campaignHome")
@TideEnabled
public class CampaignHome extends EntityHome<Campaign> {

     private static final long serialVersionUID = -7083267087708513892L;
     
     @In(required=true) @Out
     private Business business;
     
     public void wire() {
          getInstance().setBusiness(business);
     }

     @Transactional
     @Override
     public String persist() {
          wire();
          super.persist();
          
          business.getCampaigns().add(getInstance());
          
          return "persisted";
     }
}

What I want to achieve is that after persisting a new Campaign, refresh the Business instance so that its campaigns collection will have the newly persisted campaign. Suggestions/help will be highly appreciated.

[kingcu]

Maybe my original question wasn't clear enough, so let me re-phrase it: if I have a one-to-many bidirectional relationship, after persisting an entity of the many side, how do I refresh the entity on the one side?

[kingcu]

Just figured it out: I need to wire both sides of the relation.

Now another question: is it a good idea to override EntityHome.persist() and call wire() there?

[joblini]

getEntityManager().refresh(entity);