gvsig-tools / org.gvsig.tools / library / trunk / org.gvsig.tools / org.gvsig.tools.lib / src / main / java / org / gvsig / tools / util / UnmodifiableBasicListToListAdapter.java @ 2335
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1 | 1863 | jjdelcerro | package org.gvsig.tools.util; |
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2 | |||
3 | import java.util.Collection; |
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4 | import java.util.Iterator; |
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5 | import java.util.List; |
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6 | import java.util.ListIterator; |
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7 | import java.util.NoSuchElementException; |
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8 | |||
9 | /**
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10 | *
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11 | * @author jjdelcerro
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12 | * @param <T>
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13 | */
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14 | public class UnmodifiableBasicListToListAdapter<T> implements List<T> { |
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15 | |||
16 | private final UnmodifiableBasicList<T> basiclist; |
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17 | |||
18 | public UnmodifiableBasicListToListAdapter(UnmodifiableBasicList<T> basiclist) {
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19 | this.basiclist = basiclist;
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20 | } |
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21 | |||
22 | @Override
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23 | public int size() { |
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24 | return this.basiclist.size(); |
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25 | } |
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26 | |||
27 | @Override
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28 | public boolean isEmpty() { |
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29 | return this.basiclist.isEmpty(); |
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30 | } |
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31 | |||
32 | @Override
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33 | public boolean contains(Object o) { |
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34 | return indexOf(o) >= 0; |
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35 | } |
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36 | |||
37 | @Override
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38 | public Iterator<T> iterator() { |
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39 | return this.basiclist.iterator(); |
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40 | } |
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41 | |||
42 | @Override
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43 | public Object[] toArray() { |
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44 | int size = this.size(); |
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45 | Object[] result = new Object[size]; |
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46 | int i = 0; |
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47 | for (int j = 0; j < size; j++) { |
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48 | result[i++] = this.get(j);
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49 | } |
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50 | return result;
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51 | } |
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52 | |||
53 | @Override
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54 | public <T> T[] toArray(T[] a) { |
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55 | int size = this.size(); |
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56 | if (a.length < size)
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57 | a = (T[])java.lang.reflect.Array.newInstance(
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58 | a.getClass().getComponentType(), size |
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59 | ); |
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60 | int i = 0; |
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61 | Object[] result = a; |
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62 | for (int j = 0; j < size; j++) { |
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63 | result[i++] = this.get(j);
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64 | } |
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65 | if (a.length > size)
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66 | a[size] = null;
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67 | return a;
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68 | } |
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69 | |||
70 | @Override
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71 | public boolean add(T e) { |
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72 | throw new UnsupportedOperationException("Not supported yet."); |
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73 | } |
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74 | |||
75 | @Override
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76 | public boolean remove(Object o) { |
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77 | throw new UnsupportedOperationException("Not supported yet."); |
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78 | } |
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79 | |||
80 | @Override
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81 | public boolean containsAll(Collection<?> c) { |
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82 | for (Object e : c) |
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83 | if (!contains(e))
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84 | return false; |
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85 | return true; |
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86 | } |
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87 | |||
88 | @Override
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89 | public boolean addAll(Collection<? extends T> c) { |
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90 | throw new UnsupportedOperationException("Not supported yet."); |
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91 | } |
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92 | |||
93 | @Override
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94 | public boolean addAll(int index, Collection<? extends T> c) { |
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95 | throw new UnsupportedOperationException("Not supported yet."); |
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96 | } |
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97 | |||
98 | @Override
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99 | public boolean removeAll(Collection<?> c) { |
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100 | throw new UnsupportedOperationException("Not supported yet."); |
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101 | } |
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102 | |||
103 | @Override
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104 | public boolean retainAll(Collection<?> c) { |
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105 | throw new UnsupportedOperationException("Not supported yet."); |
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106 | } |
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107 | |||
108 | @Override
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109 | public void clear() { |
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110 | throw new UnsupportedOperationException("Not supported yet."); |
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111 | } |
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112 | |||
113 | @Override
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114 | public T get(int index) { |
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115 | return this.basiclist.get(index); |
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116 | } |
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117 | |||
118 | @Override
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119 | public T set(int index, T element) { |
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120 | throw new UnsupportedOperationException("Not supported yet."); |
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121 | } |
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122 | |||
123 | @Override
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124 | public void add(int index, T element) { |
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125 | throw new UnsupportedOperationException("Not supported yet."); |
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126 | } |
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127 | |||
128 | @Override
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129 | public T remove(int index) { |
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130 | throw new UnsupportedOperationException("Not supported yet."); |
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131 | } |
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132 | |||
133 | @Override
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134 | public int indexOf(Object o) { |
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135 | int size = this.basiclist.size(); |
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136 | if (o == null) { |
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137 | for (int i = 0; i < size; i++) |
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138 | if (this.basiclist.get(i)==null) |
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139 | return i;
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140 | } else {
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141 | for (int i = 0; i < size; i++) |
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142 | if (o.equals(this.basiclist.get(i))) |
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143 | return i;
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144 | } |
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145 | return -1; |
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146 | } |
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147 | |||
148 | @Override
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149 | public int lastIndexOf(Object o) { |
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150 | int size = this.basiclist.size(); |
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151 | if (o == null) { |
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152 | for (int i = size-1; i >= 0; i--) |
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153 | if (this.basiclist.get(i)==null) |
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154 | return i;
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155 | } else {
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156 | for (int i = size-1; i >= 0; i--) |
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157 | if (o.equals(this.basiclist.get(i))) |
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158 | return i;
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159 | } |
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160 | return -1; |
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161 | } |
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162 | |||
163 | @Override
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164 | public ListIterator<T> listIterator() { |
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165 | return new ListItr(0); |
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166 | } |
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167 | |||
168 | @Override
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169 | public ListIterator<T> listIterator(int index) { |
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170 | if (index < 0 || index > size()) |
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171 | throw new IndexOutOfBoundsException("Index: "+index); |
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172 | return new ListItr(index); |
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173 | } |
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174 | |||
175 | @Override
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176 | public List<T> subList(int fromIndex, int toIndex) { |
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177 | throw new UnsupportedOperationException("Not supported yet."); |
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178 | } |
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179 | |||
180 | private class Itr implements Iterator<T> { |
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181 | int cursor; // index of next element to return |
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182 | |||
183 | Itr() {} |
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184 | |||
185 | @Override
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186 | public boolean hasNext() { |
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187 | return cursor != size();
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188 | } |
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189 | |||
190 | @Override
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191 | public T next() {
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192 | int i = cursor;
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193 | if (i >= size())
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194 | throw new NoSuchElementException(); |
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195 | cursor = i + 1;
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196 | return basiclist.get(i);
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197 | } |
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198 | |||
199 | @Override
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200 | public void remove() { |
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201 | throw new UnsupportedOperationException("Not supported yet."); |
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202 | } |
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203 | } |
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204 | |||
205 | private class ListItr extends Itr implements ListIterator<T> { |
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206 | ListItr(int index) {
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207 | super();
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208 | cursor = index; |
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209 | } |
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210 | |||
211 | @Override
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212 | public boolean hasPrevious() { |
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213 | return cursor != 0; |
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214 | } |
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215 | |||
216 | @Override
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217 | public int nextIndex() { |
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218 | return cursor;
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219 | } |
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220 | |||
221 | @Override
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222 | public int previousIndex() { |
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223 | return cursor - 1; |
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224 | } |
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225 | |||
226 | @Override
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227 | public T previous() {
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228 | int i = cursor - 1; |
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229 | if (i < 0) |
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230 | throw new NoSuchElementException(); |
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231 | cursor = i; |
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232 | return (T)basiclist.get(i);
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233 | } |
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234 | |||
235 | @Override
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236 | public void set(T e) { |
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237 | throw new UnsupportedOperationException("Not supported yet."); |
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238 | } |
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239 | |||
240 | @Override
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241 | public void add(T e) { |
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242 | throw new UnsupportedOperationException("Not supported yet."); |
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243 | } |
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244 | } |
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245 | |||
246 | } |