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annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/set/AbstractObservableSet.d @ 96:b74ac5dfcc06

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package to module and java.lang.all import
author Frank Benoit <benoit@tionex.de>
date Tue, 21 Apr 2009 11:03:33 +0200
parents 6208d4f6a277
children c86eb8b3098e
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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Matthew Hall - bug 208332
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11 *******************************************************************************/
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12
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13 module org.eclipse.core.databinding.observable.set.AbstractObservableSet;
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14
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15 import java.lang.all;
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16
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17 import java.util.Collection;
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18 import java.util.Iterator;
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19 import java.util.Set;
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20
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21 import org.eclipse.core.databinding.observable.AbstractObservable;
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22 import org.eclipse.core.databinding.observable.ChangeSupport;
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23 import org.eclipse.core.databinding.observable.ObservableTracker;
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24 import org.eclipse.core.databinding.observable.Realm;
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25
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26 /**
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27 *
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28 * Abstract implementation of {@link IObservableSet}.
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29 *
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30 * <p>
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31 * This class is thread safe. All state accessing methods must be invoked from
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32 * the {@link Realm#isCurrent() current realm}. Methods for adding and removing
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33 * listeners may be invoked from any thread.
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34 * </p>
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35 *
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36 * @since 1.0
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37 */
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38 public abstract class AbstractObservableSet : AbstractObservable ,
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39 IObservableSet {
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40
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41 private ChangeSupport changeSupport;
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42
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43 private bool stale = false;
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44
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45 protected this() {
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46 this(Realm.getDefault());
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47 }
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48
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49 protected void firstListenerAdded() {
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50 super.firstListenerAdded();
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51 }
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52
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53 protected void lastListenerRemoved() {
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54 super.lastListenerRemoved();
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55 }
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56
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57 protected this(Realm realm) {
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58 super(realm);
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59 changeSupport = new class(realm) ChangeSupport {
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60 protected void firstListenerAdded() {
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61 this.outer.firstListenerAdded();
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62 }
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63 protected void lastListenerRemoved() {
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64 this.outer.lastListenerRemoved();
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65 }
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66 };
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67 }
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68
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69 public synchronized void addSetChangeListener(ISetChangeListener listener) {
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70 changeSupport.addListener(SetChangeEvent.TYPE, listener);
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71 }
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72
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73 public synchronized void removeSetChangeListener(ISetChangeListener listener) {
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74 changeSupport.removeListener(SetChangeEvent.TYPE, listener);
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75 }
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76
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77 protected abstract Set getWrappedSet();
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78
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79 protected void fireSetChange(SetDiff diff) {
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80 // fire general change event first
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81 super.fireChange();
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82
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83 changeSupport.fireEvent(new SetChangeEvent(this, diff));
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84 }
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85
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86 public bool contains(Object o) {
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87 getterCalled();
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88 return getWrappedSet().contains(o);
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89 }
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90
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91 public bool containsAll(Collection c) {
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92 getterCalled();
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93 return getWrappedSet().containsAll(c);
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94 }
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95
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96 public override equals_t opEquals(Object o) {
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97 getterCalled();
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98 return getWrappedSet().equals(o);
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99 }
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100
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101 public override hash_t toHash() {
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102 getterCalled();
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103 return getWrappedSet().hashCode();
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104 }
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105
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106 public bool isEmpty() {
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107 getterCalled();
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108 return getWrappedSet().isEmpty();
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109 }
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110
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111 public Iterator iterator() {
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112 getterCalled();
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113 final Iterator wrappedIterator = getWrappedSet().iterator();
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114 return new class() Iterator {
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115
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116 public void remove() {
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117 throw new UnsupportedOperationException();
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118 }
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119
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120 public bool hasNext() {
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121 ObservableTracker.getterCalled(this.outer);
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122 return wrappedIterator.hasNext();
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123 }
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124
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125 public Object next() {
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126 ObservableTracker.getterCalled(this.outer);
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127 return wrappedIterator.next();
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128 }
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129 };
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130 }
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131
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132 public int size() {
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133 getterCalled();
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134 return getWrappedSet().size();
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135 }
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136
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137 public Object[] toArray() {
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138 getterCalled();
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139 return getWrappedSet().toArray();
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140 }
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141
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142 public Object[] toArray(Object[] a) {
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143 getterCalled();
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144 return getWrappedSet().toArray(a);
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145 }
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146
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147 public String toString() {
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148 getterCalled();
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149 return getWrappedSet().toString();
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150 }
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151
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152 protected void getterCalled() {
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153 ObservableTracker.getterCalled(this);
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154 }
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155
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156 public bool add(Object o) {
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157 throw new UnsupportedOperationException();
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158 }
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159
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160 public bool addAll(Collection c) {
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161 throw new UnsupportedOperationException();
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162 }
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163
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164 public bool remove(Object o) {
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165 throw new UnsupportedOperationException();
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166 }
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167
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168 public bool removeAll(Collection c) {
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169 throw new UnsupportedOperationException();
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170 }
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171
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172 public bool retainAll(Collection c) {
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173 throw new UnsupportedOperationException();
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174 }
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175
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176 public void clear() {
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177 throw new UnsupportedOperationException();
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178 }
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179
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180 /**
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181 * @return Returns the stale state.
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182 */
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183 public bool isStale() {
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184 getterCalled();
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185 return stale;
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186 }
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187
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188 /**
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189 * @param stale
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190 * The stale state to set. This will fire a stale event if the
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191 * given bool is true and this observable set was not already
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192 * stale.
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193 */
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194 public void setStale(bool stale) {
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195 checkRealm();
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196 bool wasStale = this.stale;
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197 this.stale = stale;
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198 if (!wasStale && stale) {
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199 fireStale();
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200 }
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201 }
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202
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203
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204 protected void fireChange() {
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205 throw new RuntimeException("fireChange should not be called, use fireSetChange() instead"); //$NON-NLS-1$
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206 }
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207
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208 /* (non-Javadoc)
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209 * @see org.eclipse.jface.provisional.databinding.observable.AbstractObservable#dispose()
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210 */
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211 public synchronized void dispose() {
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212 super.dispose();
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213
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214 if (changeSupport !is null) {
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215 changeSupport.dispose();
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216 changeSupport = null;
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217 }
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218 }
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219
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220 }