gistfile1.txt

@Model
class User {
    @Id
    private Long id;
    @Attribute
    private String name;
    @Attribute
    @Indexed
    private int age;
    @Reference
    @Indexed
    private Country country;
    @CollectionList(of = Comment.class)
    @Indexed
    private List<Comment> comments;
    @CollectionSet(of = Item.class)
    @Indexed
    private Set<Item> purchases;
    @CollectionMap(key = Integer.class, value = Item.class)
    @Indexed
    private Map<Integer, Item> favoritePurchases;
    @CollectionSortedSet(of = Item.class, by = "price")
    @Indexed
    private Set<Item> orderedPurchases;
    @Array(of = Item.class, length = 3)
    @Indexed
    private Item[] threeLatestPurchases;
}

@Model
class Comment {
    @Id
    private Long id;
    @Attribute
    private String text;
}

@Model
class Item {
    @Id
    private Long id;
    @Attribute
    private String name;
}