About PersistenceUtil isLoaded in ToyApplication

[himaiMinh]

Hi,
In the ToyApplication, Item.java,

Code: Select all

public String toString() {
        PersistenceUtil pu = Persistence.getPersistenceUtil();
        return "salesapp.Item[id=" + id + " name="+name+
               " categories="+(pu.isLoaded(categories)?categories:"Not Loaded")+
                "]";
     }

Why the PersistenceUtil cannot load categories ?
How can I make it load categories?

[admin]

Just set fetch type to eager in Item.java for categories:

@ManyToMany(fetch=FetchType.EAGER)
private Set<Category> categories;