1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portlet.shopping.util.comparator;
21  
22  import com.liferay.portal.kernel.util.OrderByComparator;
23  import com.liferay.portlet.shopping.model.ShoppingItem;
24  
25  /**
26   * <a href="ItemSKUComparator.java.html"><b><i>View Source</i></b></a>
27   *
28   * @author Brian Wing Shun Chan
29   *
30   */
31  public class ItemSKUComparator extends OrderByComparator {
32  
33      public static String ORDER_BY_ASC = "categoryId ASC, sku ASC";
34  
35      public static String ORDER_BY_DESC = "categoryId DESC, sku DESC";
36  
37      public ItemSKUComparator() {
38          this(false);
39      }
40  
41      public ItemSKUComparator(boolean asc) {
42          _asc = asc;
43      }
44  
45      public int compare(Object obj1, Object obj2) {
46          ShoppingItem item1 = (ShoppingItem)obj1;
47          ShoppingItem item2 = (ShoppingItem)obj2;
48  
49          Long categoryId1 = new Long(item1.getCategoryId());
50          Long categoryId2 = new Long(item2.getCategoryId());
51  
52          int value = categoryId1.compareTo(categoryId2);
53  
54          if (value == 0) {
55              value = item1.getSku().compareTo(item2.getSku());
56          }
57  
58          if (_asc) {
59              return value;
60          }
61          else {
62              return -value;
63          }
64      }
65  
66      public String getOrderBy() {
67          if (_asc) {
68              return ORDER_BY_ASC;
69          }
70          else {
71              return ORDER_BY_DESC;
72          }
73      }
74  
75      private boolean _asc;
76  
77  }