Mercurial > hg > Members > shoshi > TreeCMSv2

annotate src/treecms/tree/util/NodeChildrenImpl.java @ 14:8bf59f161b23

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separete Node methods to NodeContext , NodeAttribute , NodeChildren
author misaka
date Tue, 17 May 2011 18:44:14 +0900
parents
children 22cd920986c5
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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.nio.ByteBuffer;
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4 import java.util.ArrayList;
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5 import java.util.Collections;
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6 import java.util.HashSet;
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7 import java.util.Map;
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8 import java.util.Set;
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9 import java.util.List;
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10 import treecms.api.Node;
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11 import treecms.api.NodeAttributes;
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12 import treecms.api.NodeChildren;
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13
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14 /**
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15 * 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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16 * 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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17 * @author shoshi
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18 */
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19 public class NodeChildrenImpl<T extends Node<T>> implements NodeAttributes , NodeChildren<T>
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20 {
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21 private List<T> m_list;
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22 private Set<String> m_set;
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23
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24 public NodeChildrenImpl()
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25 {
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26 m_list = new ArrayList<T>();
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27 m_set = new HashSet<String>();
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28 }
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29
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30 public NodeChildrenImpl(NodeChildrenImpl<T> _list)
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31 {
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32 this();
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33
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34 if(_list != null){
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35 addAll(_list);
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36 }
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37 }
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38
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39 public List<T> getList()
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40 {
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41 return Collections.unmodifiableList(m_list);
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42 }
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43
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44 public Set<String> getUUIDSet()
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45 {
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46 return Collections.unmodifiableSet(m_set);
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47 }
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48
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49 @Override
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50 public T replace(T _newChild)
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51 {
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52 String uuid = _newChild.getID().getUUID();
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53 int size = m_list.size();
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54 for(int i = 0;i < size;i ++){
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55 T n = m_list.get(i);
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56 if(uuid.equals(n.getID().getUUID())){
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57 //_newChildと同一なUUIDを見つけた
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58 return m_list.set(i,_newChild);
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59 }
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60 }
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61 //見つからなかった
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62 return null;
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63 }
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64
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65 /**
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66 * このリストに新しく子供を追加します．
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67 * @param _n
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68 * @return 追加に成功した場合true
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69 */
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70 public boolean add(T _n)
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71 {
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72 if(m_set.contains(_n.getID().getUUID())){
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73 return false;
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74 }
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75
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76 m_set.add(_n.getID().getUUID());
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77 m_list.add(_n);
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78 return true;
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79 }
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80
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81 /**
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82 * _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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83 * @param _list
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84 * @return 追加に成功した場合true
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85 */
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86 public boolean addAll(NodeChildren<T> _list)
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87 {
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88 if(Collections.disjoint(m_set,_list.getUUIDSet())){
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89 //共通要素がない
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90 m_set.addAll(_list.getUUIDSet());
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91 m_list.addAll(_list.getList());
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92 }
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93 return false;
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94 }
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95
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96 /**
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97 * 指定されたNodeID
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98 * @param _id
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99 * @return 子供ノード
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100 */
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101 public T get(String _uuid)
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102 {
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103 for(T n : m_list){
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104 String uuid = n.getID().getUUID();
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105 if(uuid.equals(_uuid)){
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106 return n;
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107 }
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108 }
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109
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110 return null;
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111 }
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112
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113 /**
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114 * 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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115 * @param _index
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116 * @return 消される子供ノード
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117 */
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118 public T get(int _index)
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119 {
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120 return m_list.get(_index);
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121 }
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122
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123 /**
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124 * 指定されたUUIDを持つ子どもを削除します
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125 * @param _id
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126 * @return 削除される子供ノード
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127 */
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128 public T remove(String _uuid)
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129 {
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130 int size = m_list.size();
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131
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132 for(int i = 0;i < size;i ++){
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133 String uuid = m_list.get(i).getID().getUUID();
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134 if(uuid.equals(_uuid)){
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135 //NodeIDのUUIDが一致した
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136 return m_list.remove(i);
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137 }
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138 }
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139
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140 return null;
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141 }
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142
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143 /**
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144 * 指定された場所の子供ノードを削除します
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145 * @param _index
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146 * @return 削除された子供ノード
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147 */
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148 public T remove(int _index)
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149 {
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150 return m_list.remove(_index);
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151 }
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152
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153 /**
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154 * 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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155 * @param _id
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156 * @return 存在する場合true
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157 */
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158 public boolean contains(String _uuid)
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159 {
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160 return m_set.contains(_uuid);
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161 }
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162
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163 /**
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164 * 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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165 * @param _uuid1 String
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166 * @param _uuid2 String
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167 * @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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168 */
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169 public boolean swap(String _uuid1,String _uuid2)
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170 {
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171 /*
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172 * 二つのNodeIDの位置を求める
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173 */
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174 int index1 = -1;
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175 int index2 = -1;
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176
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177 int size = m_list.size();
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178 for(int i = 0;i < size && (index1 == -1 || index2 == 1);i ++){
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179 String uuid = m_list.get(i).getID().getUUID();
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180 if(uuid.equals(_uuid1)){
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181 index1 = i;
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182 continue;
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183 }
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184
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185 if(uuid.equals(_uuid2)){
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186 index2 = i;
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187 continue;
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188 }
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189 }
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190
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191 /*
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192 * Collection.swapを使って入れ替える
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193 */
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194 if(index1 != -1 && index2 != -1){
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195 Collections.swap(m_list,index1,index2);
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196 return true;
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197 }
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198
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199 //NodeIDがリスト上になかった
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200 return false;
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201 }
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202
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203 /**
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204 * 子供ノードのリストをクリアします
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205 */
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206 public void clearChildren()
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207 {
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208 m_set.clear();
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209 m_list.clear();
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210 }
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211
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212 @Override
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213 public boolean equals(Object _o)
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214 {
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215 NodeChildrenImpl<T> list = (NodeChildrenImpl<T>)_o;
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216 return m_list.equals(list.m_list);
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217 }
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218
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219 @Override
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220 public int hashCode()
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221 {
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222 int result = 17;
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223 result = 37*result + m_list.hashCode();
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224 result = 37*result + m_set.hashCode();
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225 return result;
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226 }
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227
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228 @Override
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229 public Map<ByteBuffer, ByteBuffer> asMap() {
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230 // TODO Auto-generated method stub
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231 return null;
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232 }
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233
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234 @Override
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235 public Set<ByteBuffer> getKeySet() {
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236 // TODO Auto-generated method stub
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237 return null;
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238 }
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239
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240 @Override
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241 public void put(ByteBuffer _name, ByteBuffer _value) {
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242 // TODO Auto-generated method stub
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243
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244 }
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245
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246 @Override
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247 public void putAll(NodeAttributes _attrs) {
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248 // TODO Auto-generated method stub
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249
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250 }
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251
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252 @Override
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253 public ByteBuffer get(ByteBuffer _name) {
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254 // TODO Auto-generated method stub
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255 return null;
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256 }
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257
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258 @Override
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259 public NodeAttributes getAll() {
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260 // TODO Auto-generated method stub
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261 return null;
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262 }
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263
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264 @Override
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265 public void remove(ByteBuffer _name) {
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266 // TODO Auto-generated method stub
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267
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268 }
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269
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270 @Override
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271 public void removeAll(Set<ByteBuffer> _keySet) {
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272 // TODO Auto-generated method stub
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273
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274 }
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275
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276 @Override
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277 public void clearAttributes() {
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278 // TODO Auto-generated method stub
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279
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280 }
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281
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282 }