Jboss Ejb3.0 Entity Bean

Order. java
Package org. jboss. tutorial. entity. bean;
Import javax. persistence. CascadeType;
Import javax. persistence. Entity;
Import javax. persistence. FetchType;
Import javax. persistence. GeneratorType;
Import javax. persistence. Id;
Import javax. persistence. Onetoence;
Import javax. persistence. Table;
Import javax. persistence. Id;
Import javax. persistence. CascadeType;
Import javax. persistence. FetchType;
Import java. util. ArrayList;
Import java. util. Collection;
@ Entity
@ Table (name = "PURCHASE_ORDER ")
// If the table name isn' t specified it defaults to the bean name
// Of the class. For instance, the LineItem EJB wocould be mapped
// The LINEITEM table
Public class Order implements java. io. Serializable
{
Private int id;
Private double total;
Private Collection <LineItem> lineItems;
@ Id (generate = GeneratorType. AUTO)
Public int getId ()
   {
Return id;
   }
Public void setId (int id)
   {
This. id = id;
   }
Public double getTotal ()
   {
Return total;
   }
Public void setTotal (double total)
   {
This. total = total;
   }
Public void addPurchase (String product, int quantity, double price)
   {
If (lineItems = null) lineItems = new ArrayList <LineItem> ();
LineItem item = new LineItem ();
Item. setOrder (this );
Item. setProduct (product );
Item. setQuantity (quantity );