cartitem.java

工厂版本管理系统,STRUTS2框架,用于管理商品的版本,便于有效的控制版本

package com.bluesky.elecall.domain.cart;

import java.math.BigDecimal;

import com.bluesky.elecall.domain.Product;

public class CartItem {
	//if productId is invalid, then product is null
	private Product product;
	private String productId;
	private long quantity;

	public CartItem() {
		
	}

	public CartItem(String productId, long quantity) {
		this.productId = productId;
		this.quantity = quantity;
	}

	public Product getProduct() {
		return product;
	}

	public void setProduct(Product product) {
		this.product = product;
	}

	public long getQuantity() {
		return quantity;
	}

	public void setQuantity(long quantity) {
		this.quantity = quantity;
	}
	public String getProductId() {
		return productId;
	}

	public void setProductId(String productId) {
		this.productId = productId;
	}
	public void increaseQuantity(long quantity) {
		this.quantity += quantity;
	}

	public BigDecimal getAmount() {
		return product.getUnitPrice(quantity).multiply(new BigDecimal(quantity));
	}

	public boolean isEmpty() {
		if(productId==null || productId.equals("")	|| quantity==0)
			return true;
		
		return false;
	}
	
	public BigDecimal getUnitPrice()
	{
		return product.getUnitPrice(quantity);
	}
	
	public boolean isValid(){
		if(product!=null && product.getName().length()>0)
			return true;
		else
			return false;
		
	}
}