shoppingcartform.java

一个J2EE 做的 网上图书销售管理系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.briup.bean;

import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.hibernate.mapping.Set;

/** 
 * MyEclipse Struts
 * Creation date: 10-15-2007
 * 
 * XDoclet definition:
 * @struts.form name="shoppingCartForm"
 */
public class ShoppingCartForm extends ActionForm {
private Map cart = new TreeMap();
	
	public void addLine(Orderline line) {
		Orderline orderLine = (Orderline)cart.get(line.getBook().getId());
		if(orderLine != null) 
			orderLine.setNum(orderLine.getNum()+line.getNum());
		else if(line.getNum()>0)
			cart.put(line.getBook().getId(), line);
	}
	
	public void dropLine(Integer lineid) {
		cart.remove(lineid);
	}
	
	public Orderline getOrderline(Integer lineid){
		return (Orderline)cart.get(lineid);
	}
	
	public Collection getOrderlines() {
		return cart.values();
	}
	
	public double getCost() {
		double cost = 0.0;		
		for(Iterator it = getOrderlines().iterator();it.hasNext();) {
			Orderline orderLine = (Orderline)it.next();
			cost += orderLine.getBook().getPrice() * orderLine.getNum();
			
		}
		return cost;
	}
	
	public void removeAll() {
		cart.clear();
	}
	
	public boolean isEmpty(){
		return cart.isEmpty();
	}

	/** 
	 * Method validate
	 * @param mapping
	 * @param request
	 * @return ActionErrors
	 */
	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/** 
	 * Method reset
	 * @param mapping
	 * @param request
	 */
	public void reset(ActionMapping mapping, HttpServletRequest request) {
		// TODO Auto-generated method stub
	}

	/** 
	 * Returns the cart.
	 * @return Set
	 */
	public Map getCart() {
		return cart;
	}

	/** 
	 * Set the cart.
	 * @param cart The cart to set
	 */
	public void setCart(Map cart) {
		this.cart = cart;
	}
}