##### 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 |  |
      *
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      * Copyright (C) 2003 Tim Pizey
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      *
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      * Part of Melati (http://melati.org), a framework for the rapid
8 |  |
      * development of clean, maintainable web applications.
9 |  |
      *
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      * 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,
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      *
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      *    or
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      *
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      * b) any version of the Melati Software License, as published
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      *    at http://melati.org
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      *
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      * You should have received a copy of the GNU General Public License and
23 |  |
      * the Melati Software License along with this program;
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      * if not, write to the Free Software Foundation, Inc.,
25 |  |
      * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
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      * GNU General Public License and visit http://melati.org to obtain the
27 |  |
      * Melati Software License.
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      *
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      * Feel free to contact the Developers of Melati (http://melati.org),
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      * if you would like to work out a different arrangement than the options
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      * outlined here.  It is our intention to allow Melati to be used by as
32 |  |
      * wide an audience as possible.
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      *
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      * This program is distributed in the hope that it will be useful,
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      * but WITHOUT ANY WARRANTY; without even the implied warranty of
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      * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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      * GNU General Public License for more details.
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      *
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      * Contact details for copyright holder:
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      *
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      *     Tim Pizey <timp At paneris.org>
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      */
43 |  |
44 |  |
     package org.melati.util;
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46 |  |
     import java.util.Vector;
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     import java.util.Enumeration;
48 |  |
49 |  |
50 |  |
     /**
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      * All the code common to {@link CountedDumbPagedEnumeration}
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      * and {@link DumbPagedEnumeration}.
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      */
54 | 174 |
     public abstract class PagedEnumerationBase<T> implements PagedEnumeration<T> {
55 |  |
56 |  |
       int pageStart, pageSize;
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       Vector<T> page;
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       int totalCount;
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       Enumeration<T> us;
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       int currentPosition;
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62 |  |
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       //
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       // -------------
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       //  Enumeration
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       // -------------
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       //
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69 |  |
       /**
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        * {@inheritDoc}
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        * @see java.util.Enumeration#hasMoreElements()
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        */
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       public boolean hasMoreElements() {
74 | 1150 |
         return us.hasMoreElements();
75 |  |
       }
76 |  |
77 |  |
       /**
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        * {@inheritDoc}
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        * @see java.util.Enumeration#nextElement()
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        */
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       public T nextElement() {
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         currentPosition++;
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         return us.nextElement();
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       }
85 |  |
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       //
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       // -----------------
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       //  PagedEnumeration
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       // -----------------
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       //
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       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getPageStart()
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        */
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       public int getPageStart() {
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         return pageStart;
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       }
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99 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getPageEnd()
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        */
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       public int getPageEnd() {
104 | 126 |
         return pageStart + page.size() - 1;
105 |  |
       }
106 |  |
107 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getTotalCount()
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        */
111 |  |
       public int getTotalCount() {
112 | 122 |
         return totalCount;
113 |  |
       }
114 |  |
115 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getPrevPageStart()
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        */
119 |  |
       public Integer getPrevPageStart() {
120 | 132 |
         int it = pageStart - pageSize;
121 | 132 |
         return it < 0 ? null : new Integer(it);
122 |  |
       }
123 |  |
124 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getCurrentPosition()
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        */
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       public int getCurrentPosition() {
129 | 4 |
         return currentPosition;
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       }
131 |  |
132 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getNextPosition()
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        */
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       public int getNextPosition() {
137 | 8 |
         return hasMoreElements() ? currentPosition + 1 : 0;
138 |  |
       }
139 |  |
140 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#nextElementOnThisPage()
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        */
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       public boolean nextElementOnThisPage() {
145 | 4 |
         return hasMoreElements() && getPageEnd() >= getNextPosition();
146 |  |
       }
147 |  |
148 |  |
       /**
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        * {@inheritDoc}
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        * @see org.melati.poem.util.PagedEnumeration#getPageSize()
151 |  |
        */
152 |  |
       public int getPageSize() {
153 | 4 |
         return page.size();
154 |  |
       }
155 |  |
156 |  |
157 |  |
158 |  |
       /**
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        * @return All Pages
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        */
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 |  |
     }