Coverage Report

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

Classes in this File | Line Coverage | Branch Coverage | Complexity
CountedDumbPagedEnumeration |
100% | 12/12
100% | 2/2
| 1.5;1.5

1 |  |
     /*
2 |  |
      * $Source: /usr/cvsroot/melati/melati/src/site/resources/withWebmacro/org.melati.util.CountedDumbPagedEnumeration.html,v $
3 |  |
      * $Revision: 1.1 $
4 |  |
      *
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      * Copyright (C) 2003 Tim Pizey
6 |  |
      *
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      * 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 |  |
      *
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      * 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
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      * GNU General Public License for more details.
38 |  |
      *
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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;
45 |  |
46 |  |
     import java.util.Enumeration;
47 |  |
48 |  |
     import org.melati.poem.util.EnumUtils;
49 |  |
50 |  |
     /**
51 |  |
      * A {@link PagedEnumeration} which knows how big it is.
52 |  |
      * Ideally SQL would allow you to start at an offset.
53 |  |
      */
54 |  |
     public class CountedDumbPagedEnumeration<T> extends PagedEnumerationBase<T> {
55 |  |
56 |  |
       /**
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        * Constructor.
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        * @param base underlying Enumeration
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        * @param pageStart index of start of page
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        * @param pageSize  how many Elements to include upon a page
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        * @param totalCount size of the underlying Enumeration
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        */
63 |  |
       public CountedDumbPagedEnumeration(Enumeration<T> base,
64 | 144 |
                                  int pageStart, int pageSize, int totalCount) {
65 | 144 |
         pageStart = Math.max(pageStart, 1);
66 | 144 |
         this.pageStart = pageStart;
67 | 144 |
         this.pageSize = pageSize;
68 | 144 |
         this.totalCount = totalCount;
69 |  |
         //NOTE This is the bit that makes it dumb!
70 | 144 |
         EnumUtils.skip(base, pageStart - 1);
71 | 144 |
         page = EnumUtils.initial(base, pageSize);
72 | 144 |
         us = page.elements();
73 | 144 |
         currentPosition = pageStart - 1;
74 | 144 |
       }
75 |  |
76 |  |
       /**
77 |  |
        * {@inheritDoc}
78 |  |
        * @see org.melati.poem.util.PagedEnumeration#getNextPageStart()
79 |  |
        */
80 |  |
       public Integer getNextPageStart() {
81 | 156 |
         int it = pageStart + pageSize;
82 | 156 |
         return it <= totalCount ? new Integer(it) : null;
83 |  |
       }
84 |  |
85 |  |
86 |  |
     }