lineitem.java

一个简易的网上书店（jsp+sqlservler+struts）。

package com.webshop.domain;
import java.io.Serializable;
import java.math.BigDecimal;

/**
 * @author w
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */



public class LineItem implements Serializable {

  /* Private Fields */

  private int orderId;
  private int lineNumber;
  private int quantity;
  private String itemId;
  private BigDecimal unitPrice;
  private Item item;
  private BigDecimal total;
  private OrderStatus orderStatus;

  /* Constructors */

  public LineItem() {
  }

  public LineItem(int lineNumber, CartItem cartItem) {
    this.lineNumber = lineNumber;
    this.quantity = cartItem.getQuantity();
    this.itemId = cartItem.getItem().getItemId();
    this.unitPrice =new BigDecimal(cartItem.getItem().getListPrice());
    this.item = cartItem.getItem();
    initOrderStatus();
  }
  

  /* JavaBeans Properties */

  public int getOrderId() {
    return orderId;
  }

  public void setOrderId(int orderId) {
    this.orderId = orderId;
    if(orderStatus==null) initOrderStatus();
    orderStatus.setOrderId(orderId);
  }

  public int getLineNumber() {
    return lineNumber;
  }

  public void setLineNumber(int lineNumber) {
    this.lineNumber = lineNumber;
  }

  public String getItemId() {
    return itemId;
  }

  public void setItemId(String itemId) {
    this.itemId = itemId;
  }

  public BigDecimal getUnitPrice() {
    return unitPrice;
  }

  public void setUnitPrice(BigDecimal unitprice) {
    this.unitPrice = unitprice;
  }

  public BigDecimal getTotal() {
  	calculateTotal();
    return total;
  }

  public Item getItem() {
    return item;
  }

  public void setItem(Item item) {
    this.item = item;
    calculateTotal();
  }

  public int getQuantity() {
    return quantity;
  }

  public void setQuantity(int quantity) {
    this.quantity = quantity;
    calculateTotal();
  }
  
  public void setOrderStatus(OrderStatus orderStatus)
  {
  	this.orderStatus=orderStatus;
  }
  public OrderStatus getOrderStatus()
  {
  	return this.orderStatus;
  }

  /* Private methods */

  private void calculateTotal() {
    if (item != null && item.getListPrice() != 0.0f) {
      total = new BigDecimal(item.getListPrice()).multiply(new BigDecimal(quantity));
    } else {
      total = null;
    }
  }
  private void initOrderStatus()
  {
  	orderStatus=new OrderStatus(-1,this.getLineNumber(),new java.sql.Date(new java.util.Date().getTime()),"预处理");
  }

}