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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 org.apache.jetspeed.portlets.selector;
18  
19  import java.util.List;
20  
21  import org.apache.jetspeed.portlets.PortletInfo;
22  import org.apache.portals.gems.browser.DatabaseBrowserIterator;
23  
24  
25  /***
26   * PortletIterator
27   * 
28   * @author <a href="mailto:taylor@apache.org">David Sean Taylor </a>
29   * @version $Id: PortletIterator.java 348264 2005-11-22 22:06:45Z taylor $
30   */
31  
32  public class PortletIterator extends DatabaseBrowserIterator
33  {
34      private static final long serialVersionUID = 1;    
35      
36      public PortletIterator(List result, List columnTitles,
37              List columnTypes, int pageSize)
38      {
39          super(result, columnTitles, columnTypes, pageSize);
40      }
41  
42      public int compare(Object obj1, Object obj2)
43      {
44          PortletInfo info1 = (PortletInfo)obj1;
45          PortletInfo info2 = (PortletInfo)obj2;
46          String name1 = info1.getDisplayName();
47          String name2 = info2.getDisplayName();
48          int order = 0;
49          
50          if (name1 == null)
51          {
52              if (name2 == null)
53                  order = 0;
54              else
55                  order = -1;
56          }
57          else if (name2 == null)
58          {
59              order = 1;            
60          }
61          else
62          {
63              order = name1.compareTo(name2);
64          }
65          
66          if (!getAscendingOrder())
67          {
68              order = 0 - order;
69          }
70          return order;
71              
72      }
73      
74  }