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1   /*
2    *  Copyright 2004 University of Hannover
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   */
16  
17  package olr.viewer;
18  
19  import olr.rdf.util.SortedList;
20  
21  /***
22   * @version $Id: SortedModelViewerList.java,v 1.6 2004/08/03 08:33:53 roku Exp $
23   */
24  public final class SortedModelViewerList extends SortedList {
25  
26      public SortedModelViewerList() {
27      }
28  
29      protected boolean isValidItem(Object o) {
30          return o instanceof ModelViewer;
31      }
32  
33      protected int compare(Object o1, Object o2) {
34          return compare((ModelViewer) o1, (ModelViewer) o2);
35      }
36  
37      private int compare(ModelViewer m1, ModelViewer m2) {
38          if ((m1 instanceof SchemaViewer) && (m2 instanceof InstanceFileViewer))
39              return -1;
40          if ((m1 instanceof InstanceFileViewer) && (m2 instanceof SchemaViewer))
41              return 1;
42          else
43              return m1.getTitle().compareTo(m2.getTitle());
44      }
45  }