hi ALRubinger,the SessionBean just as follows @Stateful public class ShoppingCartBean implements ShoppingCart { @Inject private EntityManager manager; private Order order;
public void buy(String product, int quantity, double price) { if (order == null) order = new Order(); order.addPurchase(product, quantity, price); } public Order getOrder() { return order; } public void checkout() { manager.create(order); } } /// Entity bean @Entity @Table(name = "PURCHASE_ORDER") public class Order implements java.io.Serializable { private int id; private double total; private Collection 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 item = new LineItem(); item.setOrder(this); item.setProduct(product); item.setQuantity(quantity); item.setSubtotal(quantity * price); lineItems.add(item); total += quantity * price; } @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER) @JoinColumn(name = "order_id") public Collection getLineItems() { return lineItems; } public void setLineItems(Collection lineItems) { this.lineItems = lineItems; } } @Entity @Table(name = "order_line_item") public class LineItem implements java.io.Serializable { private int id; private double subtotal; private int quantity; private String product; private Order order; @Id(generate = GeneratorType.AUTO) public int getId() { return id; } public void setId(int id) { this.id = id; } public double getSubtotal() { return subtotal; } public void setSubtotal(double subtotal) { this.subtotal = subtotal; } public int getQuantity() { return quantity; } public void setQuantity(int quantity) { this.quantity = quantity; } public String getProduct() { return product; } public void setProduct(String product) { this.product = product; } @ManyToOne @JoinColumn(name = "order_id") public Order getOrder() { return order; } public void setOrder(Order order) { this.order = order; } } /////// and testing console as follows public class Client { public static void main(String[] args) throws Exception { InitialContext ctx = new InitialContext(); // ShoppingCart cart = (ShoppingCart) ctx.lookup(ShoppingCart.class.getName()); //Calculator calculator = (Calculator) ctx.lookup("CalculatorBean/remote"); ShoppingCart cart = (ShoppingCart) ctx.lookup("ShoppingCartBean/remote"); System.out.println("Buying 2 memory sticks"); cart.buy("Memory stick", 2, 500.00); System.out.println("Buying a laptop"); cart.buy("Laptop", 1, 2000.00); System.out.println("Print cart:"); Order order = cart.getOrder(); System.out.println("Total: $" + order.getTotal()); for (LineItem item : order.getLineItems()) { System.out.println(item.getQuantity() + " " + item.getProduct() + " " + item.getSubtotal()); } System.out.println("Checkout"); cart.checkout(); } } any defect? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4065630#4065630 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4065630 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user