Mercurial > hg > Members > shoshi > TreeCMSv2

annotate src/treecms/tree/util/NodeChildrenImpl.java @ 16:bb9760760744

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commit
author shoshi
date Sat, 21 May 2011 04:46:00 +0900
parents 22cd920986c5
children 168deb591f21
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14
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1 package treecms.tree.util;
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2
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3 import java.util.ArrayList;
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4 import java.util.Collections;
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5 import java.util.HashSet;
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6 import java.util.Set;
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7 import java.util.List;
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8 import treecms.api.Node;
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9 import treecms.api.NodeChildren;
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10
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11 /**
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12 * 子供ノードを格納するため専用のリストです．java.util.List<T>は継承しておりません．
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13 * 子供ノードのリストには　リスト内に同じUUIDを持つNodeが存在　してはいけません．
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14 * @author shoshi
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15 */
16
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16 public class NodeChildrenImpl<T extends Node<T>> implements NodeChildren<T>
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17 {
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18 private List<T> m_list;
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19 private Set<String> m_set;
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20
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21 public NodeChildrenImpl()
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22 {
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23 m_list = new ArrayList<T>();
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24 m_set = new HashSet<String>();
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25 }
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26
15
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27 public NodeChildrenImpl(NodeChildren<T> _list)
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28 {
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29 this();
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30
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31 if(_list != null){
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32 addAll(_list);
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33 }
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34 }
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35
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36 public List<T> getList()
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37 {
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38 return Collections.unmodifiableList(m_list);
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39 }
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40
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41 public Set<String> getUUIDSet()
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42 {
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43 return Collections.unmodifiableSet(m_set);
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44 }
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45
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46 @Override
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47 public T replace(T _newChild)
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48 {
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49 String uuid = _newChild.getID().getUUID();
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50 int size = m_list.size();
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51 for(int i = 0;i < size;i ++){
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52 T n = m_list.get(i);
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53 if(uuid.equals(n.getID().getUUID())){
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54 //_newChildと同一なUUIDを見つけた
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55 return m_list.set(i,_newChild);
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56 }
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57 }
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58 //見つからなかった
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59 return null;
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60 }
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61
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62 /**
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63 * このリストに新しく子供を追加します．
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64 * @param _n
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65 * @return 追加に成功した場合true
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66 */
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67 public boolean add(T _n)
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68 {
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69 if(m_set.contains(_n.getID().getUUID())){
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70 return false;
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71 }
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72
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73 m_set.add(_n.getID().getUUID());
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74 m_list.add(_n);
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75 return true;
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76 }
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77
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78 /**
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79 * _listに含まれている子供がすべてこのリストに含まれない場合にのみ、要素をすべて追加します。
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80 * @param _list
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81 * @return 追加に成功した場合true
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82 */
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83 public boolean addAll(NodeChildren<T> _list)
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84 {
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85 if(Collections.disjoint(m_set,_list.getUUIDSet())){
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86 //共通要素がない
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87 m_set.addAll(_list.getUUIDSet());
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88 m_list.addAll(_list.getList());
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89 }
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90 return false;
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91 }
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92
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93 /**
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94 * 指定されたNodeID
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95 * @param _id
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96 * @return 子供ノード
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97 */
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98 public T get(String _uuid)
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99 {
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100 for(T n : m_list){
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101 String uuid = n.getID().getUUID();
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102 if(uuid.equals(_uuid)){
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103 return n;
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104 }
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105 }
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106
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107 return null;
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108 }
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109
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110 /**
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111 * 指定された_indexの場所に位置する子供を削除します
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112 * @param _index
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113 * @return 消される子供ノード
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114 */
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115 public T get(int _index)
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116 {
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117 return m_list.get(_index);
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118 }
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119
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120 /**
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121 * 指定されたUUIDを持つ子どもを削除します
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122 * @param _id
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123 * @return 削除される子供ノード
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124 */
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125 public T remove(String _uuid)
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126 {
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127 int size = m_list.size();
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128
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129 for(int i = 0;i < size;i ++){
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130 String uuid = m_list.get(i).getID().getUUID();
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131 if(uuid.equals(_uuid)){
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132 //NodeIDのUUIDが一致した
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133 return m_list.remove(i);
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134 }
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135 }
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136
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137 return null;
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138 }
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139
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140 /**
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141 * 指定された場所の子供ノードを削除します
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142 * @param _index
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143 * @return 削除された子供ノード
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144 */
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145 public T remove(int _index)
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146 {
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147 return m_list.remove(_index);
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148 }
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149
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150 /**
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151 * このリストに指定されたUUIDを持つNodeがあるか確認します
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152 * @param _id
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153 * @return 存在する場合true
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154 */
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155 public boolean contains(String _uuid)
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156 {
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157 return m_set.contains(_uuid);
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158 }
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159
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160 /**
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161 * 指定された二つのUUID(_uuid1,_uuid2)がリスト上に存在する場合、その二つの順番を入れ替えます
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162 * @param _uuid1 String
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163 * @param _uuid2 String
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164 * @return 成功した場合はtrue,NodeIDが見つからなかった場合はfalse
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165 */
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166 public boolean swap(String _uuid1,String _uuid2)
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167 {
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168 /*
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169 * 二つのNodeIDの位置を求める
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170 */
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171 int index1 = -1;
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172 int index2 = -1;
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173
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174 int size = m_list.size();
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175 for(int i = 0;i < size && (index1 == -1 || index2 == 1);i ++){
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176 String uuid = m_list.get(i).getID().getUUID();
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177 if(uuid.equals(_uuid1)){
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178 index1 = i;
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179 continue;
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180 }
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181
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182 if(uuid.equals(_uuid2)){
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183 index2 = i;
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184 continue;
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185 }
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186 }
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187
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188 /*
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189 * Collection.swapを使って入れ替える
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190 */
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191 if(index1 != -1 && index2 != -1){
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192 Collections.swap(m_list,index1,index2);
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193 return true;
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194 }
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195
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196 //NodeIDがリスト上になかった
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197 return false;
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198 }
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199
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200 /**
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201 * 子供ノードのリストをクリアします
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202 */
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203 public void clearChildren()
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204 {
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205 m_set.clear();
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206 m_list.clear();
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207 }
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208
16
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209 @SuppressWarnings("unchecked")
14
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210 @Override
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211 public boolean equals(Object _o)
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212 {
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213 NodeChildrenImpl<T> list = (NodeChildrenImpl<T>)_o;
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214 return m_list.equals(list.m_list);
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215 }
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216
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217 @Override
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218 public int hashCode()
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219 {
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220 int result = 17;
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221 result = 37*result + m_list.hashCode();
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222 result = 37*result + m_set.hashCode();
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223 return result;
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224 }
16
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225
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226 public static NodeChildren<? extends Node<?>> hoge(Node<?> hoge)
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227 {
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228 return null;
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229 }
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230 }