Coverage Report

##### Coverage Report - org.melati.util.PagedEnumerationBase

Classes in this File | Line Coverage | Branch Coverage | Complexity
PagedEnumerationBase |
100% | 19/19
70% | 7/10
| 1.3636363636363635;1.364

1 |  |
     /*
2 |  |
      * $Source: /usr/cvsroot/melati/melati/src/site/resources/withWebmacro/org.melati.util.PagedEnumerationBase.html,v $
3 |  |
      * $Revision: 1.1 $
4 |  |
      *
5 |  |
      * Copyright (C) 2003 Tim Pizey
6 |  |
      *
7 |  |
      * Part of Melati (http://melati.org), a framework for the rapid
8 |  |
      * development of clean, maintainable web applications.
9 |  |
      *
10 |  |
      * Melati is free software; Permission is granted to copy, distribute
11 |  |
      * and/or modify this software under the terms either:
12 |  |
      *
13 |  |
      * a) the GNU General Public License as published by the Free Software
14 |  |
      *    Foundation; either version 2 of the License, or (at your option)
15 |  |
      *    any later version,
16 |  |
      *
17 |  |
      *    or
18 |  |
      *
19 |  |
      * b) any version of the Melati Software License, as published
20 |  |
      *    at http://melati.org
21 |  |
      *
22 |  |
      * You should have received a copy of the GNU General Public License and
23 |  |
      * the Melati Software License along with this program;
24 |  |
      * if not, write to the Free Software Foundation, Inc.,
25 |  |
      * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 |  |
      * GNU General Public License and visit http://melati.org to obtain the
27 |  |
      * Melati Software License.
28 |  |
      *
29 |  |
      * Feel free to contact the Developers of Melati (http://melati.org),
30 |  |
      * if you would like to work out a different arrangement than the options
31 |  |
      * outlined here.  It is our intention to allow Melati to be used by as
32 |  |
      * wide an audience as possible.
33 |  |
      *
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      * This program is distributed in the hope that it will be useful,
35 |  |
      * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 |  |
      * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
37 |  |
      * GNU General Public License for more details.
38 |  |
      *
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      * Contact details for copyright holder:
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      *
41 |  |
      *     Tim Pizey <timp At paneris.org>
42 |  |
      */
43 |  |
44 |  |
     package org.melati.util;
45 |  |
46 |  |
     import java.util.Vector;
47 |  |
     import java.util.Enumeration;
48 |  |
49 |  |
50 |  |
     /**
51 |  |
      * All the code common to {@link CountedDumbPagedEnumeration}
52 |  |
      * and {@link DumbPagedEnumeration}.
53 |  |
      */
54 | 174 |
     public abstract class PagedEnumerationBase<T> implements PagedEnumeration<T> {
55 |  |
56 |  |
       int pageStart, pageSize;
57 |  |
       Vector<T> page;
58 |  |
       int totalCount;
59 |  |
       Enumeration<T> us;
60 |  |
       int currentPosition;
61 |  |
62 |  |
63 |  |
       //
64 |  |
       // -------------
65 |  |
       //  Enumeration
66 |  |
       // -------------
67 |  |
       //
68 |  |
69 |  |
       /**
70 |  |
        * {@inheritDoc}
71 |  |
        * @see java.util.Enumeration#hasMoreElements()
72 |  |
        */
73 |  |
       public boolean hasMoreElements() {
74 | 1150 |
         return us.hasMoreElements();
75 |  |
       }
76 |  |
77 |  |
       /**
78 |  |
        * {@inheritDoc}
79 |  |
        * @see java.util.Enumeration#nextElement()
80 |  |
        */
81 |  |
       public T nextElement() {
82 | 1020 |
         currentPosition++;
83 | 1020 |
         return us.nextElement();
84 |  |
       }
85 |  |
86 |  |
       //
87 |  |
       // -----------------
88 |  |
       //  PagedEnumeration
89 |  |
       // -----------------
90 |  |
       //
91 |  |
       /**
92 |  |
        * {@inheritDoc}
93 |  |
        * @see org.melati.poem.util.PagedEnumeration#getPageStart()
94 |  |
        */
95 |  |
       public int getPageStart() {
96 | 138 |
         return pageStart;
97 |  |
       }
98 |  |
99 |  |
       /**
100 |  |
        * {@inheritDoc}
101 |  |
        * @see org.melati.poem.util.PagedEnumeration#getPageEnd()
102 |  |
        */
103 |  |
       public int getPageEnd() {
104 | 126 |
         return pageStart + page.size() - 1;
105 |  |
       }
106 |  |
107 |  |
       /**
108 |  |
        * {@inheritDoc}
109 |  |
        * @see org.melati.poem.util.PagedEnumeration#getTotalCount()
110 |  |
        */
111 |  |
       public int getTotalCount() {
112 | 122 |
         return totalCount;
113 |  |
       }
114 |  |
115 |  |
       /**
116 |  |
        * {@inheritDoc}
117 |  |
        * @see org.melati.poem.util.PagedEnumeration#getPrevPageStart()
118 |  |
        */
119 |  |
       public Integer getPrevPageStart() {
120 | 132 |
         int it = pageStart - pageSize;
121 | 132 |
         return it < 0 ? null : new Integer(it);
122 |  |
       }
123 |  |
124 |  |
       /**
125 |  |
        * {@inheritDoc}
126 |  |
        * @see org.melati.poem.util.PagedEnumeration#getCurrentPosition()
127 |  |
        */
128 |  |
       public int getCurrentPosition() {
129 | 4 |
         return currentPosition;
130 |  |
       }
131 |  |
132 |  |
       /**
133 |  |
        * {@inheritDoc}
134 |  |
        * @see org.melati.poem.util.PagedEnumeration#getNextPosition()
135 |  |
        */
136 |  |
       public int getNextPosition() {
137 | 8 |
         return hasMoreElements() ? currentPosition + 1 : 0;
138 |  |
       }
139 |  |
140 |  |
       /**
141 |  |
        * {@inheritDoc}
142 |  |
        * @see org.melati.poem.util.PagedEnumeration#nextElementOnThisPage()
143 |  |
        */
144 |  |
       public boolean nextElementOnThisPage() {
145 | 4 |
         return hasMoreElements() && getPageEnd() >= getNextPosition();
146 |  |
       }
147 |  |
148 |  |
       /**
149 |  |
        * {@inheritDoc}
150 |  |
        * @see org.melati.poem.util.PagedEnumeration#getPageSize()
151 |  |
        */
152 |  |
       public int getPageSize() {
153 | 4 |
         return page.size();
154 |  |
       }
155 |  |
156 |  |
157 |  |
158 |  |
       /**
159 |  |
        * @return All Pages
160 |  |
        */
161 |  |
       public Vector<Page> getPages() {
162 | 8 |
         Vector<Page> ret = new Vector<Page>(totalCount / pageSize);
163 | 8 |
         int i = 1;
164 | 32 |
         while(((i - 1) * pageSize) < totalCount) {
165 | 24 |
           ret.addElement(new Page(i, ((i - 1) * pageSize) + 1));
166 | 24 |
           i++;
167 |  |
         }
168 | 8 |
         return ret;
169 |  |
       }
170 |  |
171 |  |
     }