|
1
21
24 package org.lobobrowser.util;
25
26 import java.util.*;
27
28 public class ListSet implements List, Set {
29 private final List list = new ArrayList();
30 private final Set set = new HashSet();
31
32 public ListSet() {
33 super();
34 }
35
36
39 public void add(int index, Object  element) {
40 if(this.set.add(element)) {
41 list.add(index, element);
42 }
43 }
44
45
48 public boolean add(Object o) {
49 if(this.set.add(o)) {
50 return this.list.add(o);
51 }
52 else {
53 return false;
54 }
55 }
56
57
60 public boolean addAll(Collection c) {
61 boolean changed = false;
62 Iterator i = c.iterator();
63 while(i.hasNext()) {
64 Object element = i.next();
65 if(this.add(element)) {
66 changed = true;
67 }
68 }
69 return changed;
70 }
71
72
75 public boolean addAll(int index, Collection c) {
76 boolean changed = false;
77 int insertIndex = index;
78 Iterator i = c.iterator();
79 while(i.hasNext()) {
80 Object element = i.next();
81 if(this.set.add(element)) {
82 this.list.add(insertIndex++, element);
83 changed = true;
84 }
85 }
86 return changed;
87 }
88
89
92 public void clear() {
93 this.set.clear();
94 this.list.clear();
95 }
96
97
100 public boolean contains(Object o) {
101 return this.set.contains(o);
102 }
103
104
107 public boolean containsAll(Collection c) {
108 return this.set.containsAll(c);
109 }
110
111
114 public Object get(int index) {
115 return this.list.get(index);
116 }
117
118
121 public int indexOf(Object o) {
122 return this.list.indexOf(o);
123 }
124
125
128 public boolean isEmpty() {
129 return this.set.isEmpty();
130 }
131
132
135 public Iterator iterator() {
136 return this.list.iterator();
137 }
138
139
142 public int lastIndexOf(Object o) {
143 return this.list.lastIndexOf(o);
144 }
145
146
149 public ListIterator listIterator() {
150 return this.list.listIterator();
151 }
152
153
156 public ListIterator listIterator(int index) {
157 return this.list.listIterator(index);
158 }
159
160
163 public Object remove(int index) {
164 Object element = this.list.remove(index);
165 if(element != null) {
166 this.set.remove(element);
167 }
168 return element;
169 }
170
171
174 public boolean remove(Object o) {
175 if(this.set.remove(o)) {
176 this.list.remove(o);
177 return true;
178 }
179 else {
180 return false;
181 }
182 }
183
184
187 public boolean removeAll(Collection c) {
188 if(this.set.removeAll(c)) {
189 this.list.removeAll(c);
190 return true;
191 }
192 else {
193 return false;
194 }
195 }
196
197
200 public boolean retainAll(Collection c) {
201 if(this.set.retainAll(c)) {
202 this.list.retainAll(c);
203 return true;
204 }
205 else {
206 return false;
207 }
208 }
209
210
213 public Object set(int index, Object element) {
214 this.set.add(element);
215 return this.list.set(index, element);
216 }
217
218
221 public int size() {
222 return this.list.size();
223 }
224
225
228 public List subList(int fromIndex, int toIndex) {
229 return this.list.subList(fromIndex, toIndex);
230 }
231
232
235 public Object [] toArray() {
236 return this.list.toArray();
237 }
238
239
242 public Object [] toArray(Object [] a) {
243 return this.list.toArray(a);
244 }
245
246 public boolean equals(Object other) {
247 return other instanceof ListSet && this.list.equals(((ListSet) other).list);
248 }
249
250 public int hashCode() {
251 return this.list.hashCode();
252 }
253 }
254 |
Popular Tags |
Java API By Example, From Geeks To Geeks.