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annotate org.eclipse.core.databinding.beans/src/org/eclipse/core/internal/databinding/beans/BeanObservableListDecorator.d @ 95:6208d4f6a277

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Added trees for databinding.beans and observable
author Frank Benoit <benoit@tionex.de>
date Tue, 21 Apr 2009 10:55:51 +0200
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children b74ac5dfcc06
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1 /*******************************************************************************
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2 * Copyright (c) 2007 Brad Reynolds 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 * Brad Reynolds - initial API and implementation
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10 * Matthew Hall - bugs 208858, 245183
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11 ******************************************************************************/
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12
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13 package org.eclipse.core.internal.databinding.beans;
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14
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15 import java.beans.PropertyDescriptor;
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16 import java.util.Collection;
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17 import java.util.Iterator;
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18 import java.util.List;
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19 import java.util.ListIterator;
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20
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21 import org.eclipse.core.databinding.beans.IBeanObservable;
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22 import org.eclipse.core.databinding.observable.IStaleListener;
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23 import org.eclipse.core.databinding.observable.ObservableTracker;
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24 import org.eclipse.core.databinding.observable.StaleEvent;
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25 import org.eclipse.core.databinding.observable.list.AbstractObservableList;
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26 import org.eclipse.core.databinding.observable.list.IListChangeListener;
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27 import org.eclipse.core.databinding.observable.list.IObservableList;
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28 import org.eclipse.core.databinding.observable.list.ListChangeEvent;
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29 import org.eclipse.core.internal.databinding.Util;
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30
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31 /**
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32 * {@link IBeanObservable} decorator for an {@link IObservableList}.
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33 *
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34 * @since 3.3
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35 */
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36 public class BeanObservableListDecorator : AbstractObservableList
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37 , IBeanObservable {
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38 private IObservableList delegate;
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39 private IStaleListener delegateStaleListener;
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40 private IListChangeListener delegateListChangeListener;
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41
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42 private Object observed;
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43 private PropertyDescriptor propertyDescriptor;
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44
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45 /**
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46 * @param delegate
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47 * @param observed
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48 * @param propertyDescriptor
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49 */
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50 public this(IObservableList delegate,
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51 Object observed, PropertyDescriptor propertyDescriptor) {
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52 super(delegate.getRealm());
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53 this.delegate = delegate;
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54 this.observed = observed;
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55 this.propertyDescriptor = propertyDescriptor;
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56 }
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57
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58 public void add(int index, Object element) {
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59 delegate.add(index, element);
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60 }
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61
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62 public bool add(Object o) {
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63 return delegate.add(o);
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64 }
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65
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66 public bool addAll(Collection c) {
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67 return delegate.addAll(c);
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68 }
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69
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70 public bool addAll(int index, Collection c) {
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71 return delegate.addAll(index, c);
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72 }
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73
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74 public void clear() {
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75 delegate.clear();
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76 }
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77
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78 public void dispose() {
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79 delegate.dispose();
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80 super.dispose();
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81 }
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82
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83 public override equals_t opEquals(Object o) {
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84 getterCalled();
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85 if (o is this)
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86 return true;
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87 if (o is null)
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88 return true;
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89 if (getClass() is o.getClass()) {
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90 BeanObservableListDecorator other = cast(BeanObservableListDecorator) o;
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91 return Util.equals(other.delegate, delegate);
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92 }
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93 return delegate.equals(o);
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94 }
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95
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96 public Object get(int index) {
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97 getterCalled();
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98 return delegate.get(index);
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99 }
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100
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101 public Object getElementType() {
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102 return delegate.getElementType();
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103 }
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104
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105 public override hash_t toHash() {
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106 getterCalled();
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107 return delegate.hashCode();
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108 }
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109
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110 public int indexOf(Object o) {
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111 getterCalled();
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112 return delegate.indexOf(o);
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113 }
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114
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115 public Iterator iterator() {
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116 getterCalled();
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117 return delegate.iterator();
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118 }
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119
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120 public int lastIndexOf(Object o) {
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121 getterCalled();
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122 return delegate.lastIndexOf(o);
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123 }
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124
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125 public ListIterator listIterator() {
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126 getterCalled();
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127 return delegate.listIterator();
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128 }
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129
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130 public ListIterator listIterator(int index) {
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131 getterCalled();
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132 return delegate.listIterator(index);
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133 }
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134
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135 public Object move(int oldIndex, int newIndex) {
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136 return delegate.move(oldIndex, newIndex);
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137 }
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138
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139 public Object remove(int index) {
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140 return delegate.remove(index);
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141 }
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142
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143 public bool remove(Object o) {
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144 return delegate.remove(o);
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145 }
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146
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147 public bool removeAll(Collection c) {
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148 return delegate.removeAll(c);
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149 }
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150
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151 public bool retainAll(Collection c) {
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152 return delegate.retainAll(c);
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153 }
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154
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155 public Object set(int index, Object element) {
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156 return delegate.set(index, element);
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157 }
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158
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159 protected int doGetSize() {
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160 return delegate.size();
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161 }
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162
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163 public List subList(int fromIndex, int toIndex) {
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164 getterCalled();
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165 return delegate.subList(fromIndex, toIndex);
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166 }
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167
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168 public Object[] toArray() {
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169 getterCalled();
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170 return delegate.toArray();
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171 }
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172
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173 public Object[] toArray(Object[] a) {
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174 return delegate.toArray(a);
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175 }
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176
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177 protected void firstListenerAdded() {
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178 delegateStaleListener = new class() IStaleListener {
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179 public void handleStale(StaleEvent staleEvent) {
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180 fireStale();
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181 }
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182 };
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183 delegate.addStaleListener(delegateStaleListener);
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184
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185 delegateListChangeListener = new class() IListChangeListener {
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186 public void handleListChange(ListChangeEvent event) {
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187 fireListChange(event.diff);
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188 }
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189 };
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190 delegate.addListChangeListener(delegateListChangeListener);
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191 }
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192
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193 protected void lastListenerRemoved() {
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194 delegate.removeStaleListener(delegateStaleListener);
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195 delegateStaleListener = null;
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196
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197 delegate.removeListChangeListener(delegateListChangeListener);
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198 delegateListChangeListener = null;
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199 }
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200
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201 private void getterCalled() {
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202 ObservableTracker.getterCalled(this);
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203 }
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204
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205 /**
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206 * @return list being delegated to
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207 */
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208 public IObservableList getDelegate() {
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209 return delegate;
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210 }
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211
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212 /*
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213 * (non-Javadoc)
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214 *
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215 * @see org.eclipse.core.databinding.beans.IBeanObservable#getObserved()
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216 */
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217 public Object getObserved() {
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218 return observed;
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219 }
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220
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221 /*
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222 * (non-Javadoc)
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223 *
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224 * @see org.eclipse.core.databinding.beans.IBeanObservable#getPropertyDescriptor()
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225 */
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226 public PropertyDescriptor getPropertyDescriptor() {
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227 return propertyDescriptor;
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228 }
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229 }