Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SelectList |
|
| 2.0;2 |
1 | /* | |
2 | * Copyright (C) 1998-2000 Semiotek Inc. All Rights Reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted under the terms of either of the following | |
6 | * Open Source licenses: | |
7 | * | |
8 | * The GNU General Public License, version 2, or any later version, as | |
9 | * published by the Free Software Foundation | |
10 | * (http://www.fsf.org/copyleft/gpl.html); | |
11 | * | |
12 | * or | |
13 | * | |
14 | * The Semiotek Public License (http://webmacro.org/LICENSE.) | |
15 | * | |
16 | * This software is provided "as is", with NO WARRANTY, not even the | |
17 | * implied warranties of fitness to purpose, or merchantability. You | |
18 | * assume all risks and liabilities associated with its use. | |
19 | * | |
20 | * See www.webmacro.org for more information on the WebMacro project. | |
21 | */ | |
22 | ||
23 | ||
24 | package org.webmacro.util; | |
25 | ||
26 | import java.util.Enumeration; | |
27 | import java.util.NoSuchElementException; | |
28 | ||
29 | /** | |
30 | * Selects from a list of things as an enumerator. | |
31 | */ | |
32 | public class SelectList implements Enumeration | |
33 | { | |
34 | ||
35 | Object[] _values; | |
36 | int _current; | |
37 | int _selected; | |
38 | ||
39 | public SelectList (Object[] elements, int selected) | |
40 | 0 | { |
41 | 0 | _current = -1; |
42 | 0 | _selected = selected; |
43 | 0 | _values = elements; |
44 | 0 | } |
45 | ||
46 | public boolean hasMoreElements () | |
47 | { | |
48 | 0 | return ((_current + 1) < _values.length); |
49 | } | |
50 | ||
51 | public Object nextElement () | |
52 | { | |
53 | 0 | _current++; |
54 | 0 | if (_current >= _values.length) |
55 | { | |
56 | 0 | throw new NoSuchElementException("List only has " |
57 | + _values.length + " elements"); | |
58 | } | |
59 | 0 | return this; |
60 | } | |
61 | ||
62 | public boolean isSelected () | |
63 | { | |
64 | 0 | return (_current == _selected); |
65 | } | |
66 | ||
67 | public String getSelected () | |
68 | { | |
69 | 0 | return isSelected() ? "SELECTED" : ""; |
70 | } | |
71 | ||
72 | public Object getValue () | |
73 | { | |
74 | try | |
75 | { | |
76 | 0 | return _values[_current]; |
77 | } | |
78 | 0 | catch (Exception e) |
79 | { | |
80 | 0 | return null; |
81 | } | |
82 | } | |
83 | ||
84 | public String toString () | |
85 | { | |
86 | try | |
87 | { | |
88 | 0 | return _values[_current].toString(); |
89 | } | |
90 | 0 | catch (Exception e) |
91 | { | |
92 | 0 | return null; |
93 | } | |
94 | } | |
95 | ||
96 | } |