_FacetsAndChildrenIterator


1   /*
2    * Copyright 2004 The Apache Software Foundation.
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  package javax.faces.component;
17  
18  import java.util.Iterator  ;
19  import java.util.List  ;
20  import java.util.Map  ;
21  import java.util.NoSuchElementException  ;
22  
23  /**
24   * @author Manfred Geiler (latest modification by $Author: mwessendorf $)
25   * @version $Revision: 1.3 $ $Date: 2004/07/01 22:00:49 $
26   */
27  class _FacetsAndChildrenIterator
28          implements Iterator  
29  {
30      private Iterator   _facetsIterator;
31      private Iterator   _childrenIterator;
32  
33      _FacetsAndChildrenIterator(Map   facetMap, List   childrenList)
34      {
35          _facetsIterator   = facetMap != null ? facetMap.values().iterator() : null;
36          _childrenIterator = childrenList != null ? childrenList.iterator() : null;
37      }
38  
39      public boolean hasNext()
40      {
41          return (_facetsIterator != null && _facetsIterator.hasNext()) ||
42                 (_childrenIterator != null && _childrenIterator.hasNext());
43      }
44  
45      public Object   next()
46      {
47          if (_facetsIterator != null && _facetsIterator.hasNext())
48          {
49              return _facetsIterator.next();
50          }
51          else if (_childrenIterator != null && _childrenIterator.hasNext())
52          {
53              return _childrenIterator.next();
54          }
55          else
56          {
57              throw new NoSuchElementException  ();
58          }
59      }
60  
61      public void remove()
62      {
63          throw new UnsupportedOperationException  (this.getClass().getName() + " UnsupportedOperationException");
64      }
65  
66  }
67
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