package apusic.myshop.order.ejb;public class OrderPK implements java.io.Serializable {    public int orderId;    public OrderPK() {}    public OrderPK(int orderId) {	    this.orderId = orderId;    }    public String toString() {    	return String.valueOf(orderId);    }    public boolean equals(Object obj) {	    if (obj != null && obj instanceof OrderPK)	        return orderId == ((OrderPK)obj).orderId;    	return false;    }    public int hashCode() {    	return orderId;    }}