1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.component.html.ext;
20
21 import javax.faces.component.StateHolder;
22 import java.io.Serializable;
23 import java.util.ArrayList;
24 import java.util.List;
25
26 /**
27 * @author Manfred Geiler (latest modification by $Author: grantsmith $)
28 * @version $Revision: 472630 $ $Date: 2006-11-08 15:40:03 -0500 (Wed, 08 Nov 2006) $
29 * %Log$
30 */
31 class _SerializableListDataModel
32 extends _SerializableDataModel
33 {
34 private static final long serialVersionUID = 2579712878688635627L;
35 //private static final Log log = LogFactory.getLog(_SerializableDataModel.class);
36
37 public _SerializableListDataModel(int first, int rows, List list)
38 {
39 _first = first;
40 _rows = rows;
41 _rowCount = list.size();
42 if (_rows <= 0)
43 {
44 _rows = _rowCount - first;
45 }
46
47 if (_rows == _rowCount)
48 {
49 //whole list must be saved
50 if (list instanceof Serializable || list instanceof StateHolder)
51 {
52 _list = list;
53 }
54 else
55 {
56 //copy list
57 _list = new ArrayList(list);
58 }
59 }
60 else
61 {
62 int size = _rows > 0 && _rows < _rowCount ? _rows : _rowCount;
63 _list = new ArrayList(size);
64 if (size > _rowCount - _first)
65 {
66 size = _rowCount - _first;
67 }
68 for (int i = 0; i < size; i++)
69 {
70 _list.add(list.get(_first + i));
71 }
72 }
73 }
74 }