xmlsalesformatter.java

SSD3 实验5的上交文件 自己实验做得

import java.util.Iterator;


public class XMLSalesFormatter implements SalesFormatter{
	static XMLSalesFormatter singletonInstance = new XMLSalesFormatter();
	private XMLSalesFormatter()
	{}
	static public XMLSalesFormatter getSingletonInstance()
	{return singletonInstance;}
	public String formatSales(Sales sales)
	{
		String info = "<Sales>";
		int n=0;
		for(Iterator<Order> i=sales.getOrdersIterator();i.hasNext();)
		{
			Order order=i.next();
			for(Iterator<OrderItem> j=order.getItemsIterator();j.hasNext();)
			{
				n++;
				OrderItem orderitem=j.next();
				info+="<Order total="+orderitem.getValue()+">"+
			    "<OrderItem quantity="+orderitem.getQuantity()+" price="+orderitem.getProduct().getPrice()+">C001</OrderItem>"+
			    "</Order>";
			}
		}
		info+="</Sales>";
		return info;
	}
}