public class Order
{
private String orderId;
private String detail;
private Item item;
}

public class Item
{
private String itemId;
private String itemName;
}

===============

Each class maps to a different database table.

session.save(order) would saves orderId and detail into the order table but information in item property would be saved into item table.

order = session.load(Order.class, "123"); would load orderId amd detail from order table but it loads data from the item table into the property item.

Would anyone show me how to write the mapping file?
Thanks.

Would this work for you?

Mapping for Order:


Mapping for Item:


You may want to refer: http://www.hibernate.org/hib_docs/v3/re ... ml_single/

Small change. You may want to replace the with