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.om.page.impl;
18
19 import java.util.AbstractList;
20
21 /***
22 * FragmentList
23 *
24 * @author <a href="mailto:rwatler@apache.org">Randy Watler</a>
25 * @version $Id$
26 */
27 class FragmentList extends AbstractList
28 {
29 private FragmentImpl fragment;
30
31 FragmentList(FragmentImpl fragment)
32 {
33 super();
34 this.fragment = fragment;
35 }
36
37 /* (non-Javadoc)
38 * @see java.util.List#add(int,java.lang.Object)
39 */
40 public void add(int index, Object element)
41 {
42 // implement for modifiable AbstractList:
43 // add and maintain page implementation reference
44 fragment.accessFragments().add(index, element);
45 if ((fragment.getPage() != null) && (element instanceof FragmentImpl))
46 {
47 ((FragmentImpl)element).setPage(fragment.getPage());
48 }
49 }
50
51 /* (non-Javadoc)
52 * @see java.util.List#get(int)
53 */
54 public Object get(int index)
55 {
56 // implement for modifiable AbstractList
57 return fragment.accessFragments().get(index);
58 }
59
60 /* (non-Javadoc)
61 * @see java.util.List#remove(int)
62 */
63 public Object remove(int index)
64 {
65 // implement for modifiable AbstractList
66 return fragment.accessFragments().remove(index);
67 }
68
69 /* (non-Javadoc)
70 * @see java.util.List#set(int,java.lang.Object)
71 */
72 public Object set(int index, Object element)
73 {
74 // implement for modifiable AbstractList:
75 // set and maintain page implementation reference
76 Object o = fragment.accessFragments().set(index, element);
77 if ((fragment.getPage() != null) && (element instanceof FragmentImpl))
78 {
79 ((FragmentImpl)element).setPage(fragment.getPage());
80 }
81 return o;
82 }
83
84 /* (non-Javadoc)
85 * @see java.util.List#size()
86 */
87 public int size()
88 {
89 // implement for modifiable AbstractList
90 return fragment.accessFragments().size();
91 }
92 }