Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
LinkedIterator |
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| 2.0;2 |
1 | /* |
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2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/util/LinkedIterator.java,v 1.6 2005/09/24 19:27:31 elharo Exp $ |
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3 | * $Revision: 1.6 $ |
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4 | * $Date: 2005/09/24 19:27:31 $ |
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5 | * |
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6 | * ==================================================================== |
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7 | * |
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8 | * Copyright (C) 2000-2002 bob mcwhirter & James Strachan. |
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9 | * All rights reserved. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * |
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15 | * 1. Redistributions of source code must retain the above copyright |
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16 | * notice, this list of conditions, and the following disclaimer. |
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17 | * |
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18 | * 2. Redistributions in binary form must reproduce the above copyright |
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19 | * notice, this list of conditions, and the disclaimer that follows |
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20 | * these conditions in the documentation and/or other materials |
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21 | * provided with the distribution. |
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22 | * |
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23 | * 3. The name "Jaxen" must not be used to endorse or promote products |
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24 | * derived from this software without prior written permission. For |
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25 | * written permission, please contact license@jaxen.org. |
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26 | * |
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27 | * 4. Products derived from this software may not be called "Jaxen", nor |
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28 | * may "Jaxen" appear in their name, without prior written permission |
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29 | * from the Jaxen Project Management (pm@jaxen.org). |
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30 | * |
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31 | * In addition, we request (but do not require) that you include in the |
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32 | * end-user documentation provided with the redistribution and/or in the |
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33 | * software itself an acknowledgement equivalent to the following: |
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34 | * "This product includes software developed by the |
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35 | * Jaxen Project <http://www.jaxen.org/>." |
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36 | * Alternatively, the acknowledgment may be graphical using the logos |
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37 | * available at http://www.jaxen.org/ |
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38 | * |
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39 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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40 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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41 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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42 | * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT |
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43 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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45 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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46 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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47 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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48 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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49 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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50 | * SUCH DAMAGE. |
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51 | * |
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52 | * ==================================================================== |
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53 | * This software consists of voluntary contributions made by many |
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54 | * individuals on behalf of the Jaxen Project and was originally |
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55 | * created by bob mcwhirter <bob@werken.com> and |
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56 | * James Strachan <jstrachan@apache.org>. For more information on the |
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57 | * Jaxen Project, please see <http://www.jaxen.org/>. |
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58 | * |
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59 | * $Id: LinkedIterator.java,v 1.6 2005/09/24 19:27:31 elharo Exp $ |
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60 | */ |
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61 | ||
62 | ||
63 | package org.jaxen.util; |
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64 | ||
65 | import java.util.ArrayList; |
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66 | import java.util.Iterator; |
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67 | import java.util.List; |
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68 | import java.util.NoSuchElementException; |
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69 | ||
70 | /** |
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71 | * @deprecated elharo this class is undocumented and untested. |
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72 | * It will be removed in a future release. |
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73 | */ |
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74 | public class LinkedIterator implements Iterator |
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75 | { |
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76 | private List iterators; |
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77 | private int cur; |
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78 | ||
79 | public LinkedIterator() |
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80 | 0 | { |
81 | 0 | this.iterators = new ArrayList(); |
82 | 0 | this.cur = 0; |
83 | 0 | } |
84 | ||
85 | public void addIterator(Iterator i) |
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86 | { |
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87 | 0 | this.iterators.add( i ); |
88 | 0 | } |
89 | ||
90 | public boolean hasNext() |
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91 | { |
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92 | 0 | boolean has = false; |
93 | ||
94 | 0 | if ( this.cur < this.iterators.size() ) |
95 | { |
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96 | 0 | has = ((Iterator)this.iterators.get( this.cur )).hasNext(); |
97 | ||
98 | 0 | if ( ! has |
99 | && |
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100 | this.cur < this.iterators.size() ) |
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101 | { |
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102 | 0 | ++this.cur; |
103 | 0 | has = hasNext(); |
104 | } |
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105 | } |
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106 | else |
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107 | { |
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108 | 0 | has = false; |
109 | } |
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110 | ||
111 | 0 | return has; |
112 | } |
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113 | ||
114 | public Object next() |
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115 | { |
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116 | 0 | if ( ! hasNext() ) |
117 | { |
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118 | 0 | throw new NoSuchElementException(); |
119 | } |
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120 | ||
121 | 0 | return ((Iterator)this.iterators.get( this.cur )).next(); |
122 | } |
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123 | ||
124 | public void remove() |
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125 | { |
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126 | 0 | throw new UnsupportedOperationException(); |
127 | } |
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128 | } |