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1   /*
2    * Copyright (c) 2002-2022, City of 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.io.Serializable;
37  
38  import java.util.List;
39  
40  /**
41   * Handles paging
42   * 
43   * @param <E>
44   *            the type
45   */
46  public interface IPaginator<E> extends Serializable
47  {
48      /** Default value for Page Index Parameter */
49      String PARAMETER_PAGE_INDEX = "page_index";
50  
51      /** Default value for Items Per Page Parameter */
52      String PARAMETER_ITEMS_PER_PAGE = "items_per_page";
53      String LABEL_FIRST = "|&lt;";
54      String LABEL_PREVIOUS = "&lt;";
55      String LABEL_NEXT = "&gt;";
56      String LABEL_LAST = "&gt;|";
57  
58      /**
59       * Gets the number of pages
60       * 
61       * @return the number of pages
62       */
63      int getPagesCount( );
64  
65      /**
66       * Returns the List
67       *
68       * @return The List
69       */
70      List<E> getPageItems( );
71  
72      /**
73       * Returns the current page index
74       *
75       * @return The current page index
76       */
77      int getPageCurrent( );
78  
79      /**
80       * Returns the previous page link
81       *
82       * @return The previous page link
83       */
84      String getFirstPageLink( );
85  
86      /**
87       * Returns the previous page link
88       *
89       * @return The previous page link
90       */
91      String getPreviousPageLink( );
92  
93      /**
94       * Returns the previous page link
95       *
96       * @return The previous page link
97       */
98      String getLastPageLink( );
99  
100     /**
101      * Returns the previous page link
102      *
103      * @return The previous page link
104      */
105     String getNextPageLink( );
106 
107     /**
108      * Returns Pages Links
109      *
110      * @return Pages Links
111      */
112     List<PaginatorPage> getPagesLinks( );
113 
114     /**
115      * Returns the index of the first item of the current page range
116      * 
117      * @return The index of the first item of the current page range
118      */
119     int getRangeMin( );
120 
121     /**
122      * Returns the index of the last item of the current page range
123      * 
124      * @return The index of the last item of the current page range
125      */
126     int getRangeMax( );
127 
128     /**
129      * Returns the number of items in the collection
130      * 
131      * @return The number of items in the collection
132      */
133     int getItemsCount( );
134 
135     /**
136      * Get First label
137      * 
138      * @return The Label
139      */
140     String getLabelFirst( );
141 
142     /**
143      * Get Previous label
144      * 
145      * @return The Label
146      */
147     String getLabelPrevious( );
148 
149     /**
150      * Get Next label
151      * 
152      * @return The Label
153      */
154     String getLabelNext( );
155 
156     /**
157      * Get First label
158      * 
159      * @return The Label
160      */
161     String getLabelLast( );
162 
163     /**
164      * Get Item Count label
165      * 
166      * @return The Label
167      */
168     String getLabelItemCount( );
169 
170     /**
171      * Get Item Count per page label
172      * 
173      * @return The Label
174      */
175     String getLabelItemCountPerPage( );
176 
177     /**
178      * Get the parameter name of the <code>items_per_page</code>
179      * 
180      * @return the parameter name
181      */
182     String getItemsPerPageParameterName( );
183 
184     /**
185      * Set the parameter name of the <code>items_per_page</code>
186      * 
187      * @param strItemsPerPageParameterName
188      *            the parameter name
189      */
190     void setItemsPerPageParameterName( String strItemsPerPageParameterName );
191 
192     /**
193      * Gets the items count per page.
194      * 
195      * @return items count per page.
196      */
197     int getItemsPerPage( );
198 }