Here is an example :
With Order / OrderPK / OrderLine (=> has a composite primary key with 2 foreign
keys)
| @Entity
| @Table(name="ORDERS")
| public class Order {
|
| private int id;
|
| private Date orderDate;
|
| @Id
| @GeneratedValue(strategy=GenerationType.AUTO)
| public int getId() {
| return id;
| }
|
| public void setId(int id) {
| this.id = id;
| }
|
| public Date getOrderDate() {
| return orderDate;
| }
|
| public void setOrderDate(Date orderDate) {
| this.orderDate = orderDate;
| }
| }
|
|
| @Entity
| @IdClass(OrderLinePk.class)
| public class OrderLine {
|
| private Product product;
|
| private Order order;
|
| private int quantity;
|
| public OrderLine() {
| }
|
| public int getQuantity() {
| return quantity;
| }
|
| public void setQuantity(int quantity) {
| this.quantity = quantity;
| }
|
| @ManyToOne
| @JoinColumn(name="orderId", insertable=false, updatable=false)
| public Order getOrder() {
| return order;
| }
|
| public void setOrder(Order order) {
| this.order = order;
| }
|
| @ManyToOne
| @JoinColumn(name="productId", insertable=false, updatable=false)
| public Product getProduct() {
| return product;
| }
|
| public void setProduct(Product product) {
| this.product = product;
| }
|
| @Id
| public int getProductId() {
| return getProduct().getId();
| }
|
| @Id
| public int getOrderId() {
| return getOrder().getId();
| }
|
| public void setOrderId(int orderId) {
| getOrder().setId(orderId);
| }
|
| public void setProductId(int productId) {
| getProduct().setId(productId);
| }
|
| }
|
|
|
|
| @Embeddable
| public class OrderLinePk implements Serializable {
|
| private static final long serialVersionUID = 1L;
|
| private int orderId;
|
| private int productId;
|
| protected OrderLinePk() {
| }
|
| public OrderLinePk(int orderId, int productId) {
| this.orderId = orderId;
| this.productId = productId;
| }
|
| public int getOrderId() {
| return orderId;
| }
|
| public void setOrderId(int orderId) {
| this.orderId = orderId;
| }
|
| public int getProductId() {
| return productId;
| }
|
| public void setProductId(int productId) {
| this.productId = productId;
| }
|
| }
|
|
|
Hope it would be useful.
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3941942#3941942
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3941942
-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
JBoss-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/jboss-user
