1 /*
2 * Copyright (c) 2002-2014, Mairie de Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34 package fr.paris.lutece.util.html;
35
36 import java.util.List;
37
38
39 /**
40 * This paginator should be used with already paged list, and the items count.
41 * <strong>This implementation requires the items count and the page items</strong>
42 * @param <E> the type
43 */
44 public class DelegatePaginator<E> extends AbstractPaginator<E>
45 {
46 private static final long serialVersionUID = -3528471886593833180L;
47
48 /**
49 * Creates a new instance of Paginator.
50 *
51 * @param list The collection to paginate
52 * @param nItemPerPage Number of items to display per page
53 * @param strBaseUrl The base Url for build links on each page link
54 * @param strPageIndexParameterName The parameter name for the page index
55 * @param strPageIndex The current page index
56 * @param nItemsCount the item count
57 */
58 public DelegatePaginator( List<E> list, int nItemPerPage, String strBaseUrl, String strPageIndexParameterName,
59 String strPageIndex, int nItemsCount )
60 {
61 _nItemsCount = nItemsCount;
62 _list = list;
63 _nItemPerPage = ( nItemPerPage <= 0 ) ? 1 : nItemPerPage;
64 _strBaseUrl = strBaseUrl;
65 _strPageIndexParameterName = strPageIndexParameterName;
66 _strItemsPerPageParameterName = PARAMETER_ITEMS_PER_PAGE;
67
68 try
69 {
70 _nPageCurrent = Integer.parseInt( strPageIndex );
71 }
72 catch ( NumberFormatException e )
73 {
74 // strPageIndex invalid, use 1 as default page index.
75 _nPageCurrent = 1;
76 }
77
78 if ( _nPageCurrent > getPagesCount( ) )
79 {
80 _nPageCurrent = 1;
81 }
82 }
83
84 /**
85 * Creates a new instance of Paginator
86 * @param list The collection to paginate
87 * @param nItemPerPage Number of items to display per page
88 * @param strBaseUrl The base Url for build links on each page link
89 * @param strPageIndexParameterName The parameter name for the page index
90 * @param strPageIndex The current page index
91 * @param nItemsCount the item count
92 * @param strItemsPerPageParameterName The parameter name of the number items per page
93 */
94 public DelegatePaginator( List<E> list, int nItemPerPage, String strBaseUrl, String strPageIndexParameterName,
95 String strPageIndex, int nItemsCount, String strItemsPerPageParameterName )
96 {
97 this( list, nItemPerPage, strBaseUrl, strPageIndexParameterName, strPageIndex, nItemsCount );
98 _strItemsPerPageParameterName = strItemsPerPageParameterName;
99 }
100
101 /**
102 * Returns the List
103 *
104 * @return The List
105 */
106 @Override
107 public List<E> getPageItems( )
108 {
109 return _list;
110 }
111 }