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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package com.ibatis.jpetstore.domain;
18  
19  import java.io.Serializable;
20  import java.math.BigDecimal;
21  
22  
23  public class CartItem implements Serializable {
24  
25    /* Private Fields */
26  
27    private Item item;
28    private int quantity;
29    private boolean inStock;
30    private BigDecimal total;
31  
32    /* JavaBeans Properties */
33  
34    public boolean isInStock() {
35      return inStock;
36    }
37  
38    public void setInStock(boolean inStock) {
39      this.inStock = inStock;
40    }
41  
42    public BigDecimal getTotal() {
43      return total;
44    }
45  
46    public Item getItem() {
47      return item;
48    }
49  
50    public void setItem(Item item) {
51      this.item = item;
52      calculateTotal();
53    }
54  
55    public int getQuantity() {
56      return quantity;
57    }
58  
59    public void setQuantity(int quantity) {
60      this.quantity = quantity;
61      calculateTotal();
62    }
63  
64    /* Public methods */
65  
66    public void incrementQuantity() {
67      quantity++;
68      calculateTotal();
69    }
70  
71    /* Private methods */
72  
73    private void calculateTotal() {
74      if (item != null && item.getListPrice() != null) {
75        total = item.getListPrice().multiply(new BigDecimal(quantity));
76      } else {
77        total = null;
78      }
79    }
80  
81  }