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annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/list/AbstractObservableList.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 * Brad Reynolds - bug 164653
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11 * Brad Reynolds - bug 167204
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12 * Matthew Hall - bug 118516
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13 * Matthew Hall - bug 208858
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14 * Matthew Hall - bug 208332
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15 *******************************************************************************/
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16
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17 module org.eclipse.core.databinding.observable.list.AbstractObservableList;
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18
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19 import java.lang.all;
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20
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21 import java.util.AbstractList;
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22 import java.util.Collection;
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23 import java.util.Iterator;
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24
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25 import org.eclipse.core.databinding.observable.ChangeEvent;
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26 import org.eclipse.core.databinding.observable.ChangeSupport;
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27 import org.eclipse.core.databinding.observable.IChangeListener;
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28 import org.eclipse.core.databinding.observable.IStaleListener;
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29 import org.eclipse.core.databinding.observable.ObservableTracker;
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30 import org.eclipse.core.databinding.observable.Realm;
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31 import org.eclipse.core.databinding.observable.StaleEvent;
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32 import org.eclipse.core.runtime.Assert;
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33 import org.eclipse.core.runtime.AssertionFailedException;
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34
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35 /**
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36 * Subclasses should override at least get(int index) and size().
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37 *
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38 * <p>
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39 * This class is thread safe. All state accessing methods must be invoked from
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40 * the {@link Realm#isCurrent() current realm}. Methods for adding and removing
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41 * listeners may be invoked from any thread.
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42 * </p>
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43 *
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44 * @since 1.0
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45 *
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46 */
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47 public abstract class AbstractObservableList : AbstractList ,
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48 IObservableList {
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49
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50 private ChangeSupport changeSupport;
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51
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52 /**
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53 * @param realm
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54 *
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55 */
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56 public this(Realm realm) {
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57 Assert.isNotNull(realm, "Realm cannot be null"); //$NON-NLS-1$
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58 changeSupport = new class(realm) ChangeSupport {
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59 protected void firstListenerAdded() {
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60 this.outer.firstListenerAdded();
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61 }
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62 protected void lastListenerRemoved() {
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63 this.outer.lastListenerRemoved();
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64 }
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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 *
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70 */
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71 public this() {
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72 this(Realm.getDefault());
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73 }
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74
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75 public bool isStale() {
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76 getterCalled();
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77 return false;
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78 }
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79
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80 public synchronized void addListChangeListener(IListChangeListener listener) {
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81 changeSupport.addListener(ListChangeEvent.TYPE, listener);
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82 }
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83
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84 public synchronized void removeListChangeListener(IListChangeListener listener) {
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85 changeSupport.removeListener(ListChangeEvent.TYPE, listener);
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86 }
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87
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88 protected void fireListChange(ListDiff diff) {
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89 // fire general change event first
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90 fireChange();
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91 changeSupport.fireEvent(new ListChangeEvent(this, diff));
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92 }
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93
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94 public synchronized void addChangeListener(IChangeListener listener) {
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95 changeSupport.addChangeListener(listener);
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96 }
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97
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98 public synchronized void removeChangeListener(IChangeListener listener) {
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99 changeSupport.removeChangeListener(listener);
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100 }
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101
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102 public synchronized void addStaleListener(IStaleListener listener) {
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103 changeSupport.addStaleListener(listener);
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104 }
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105
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106 public synchronized void removeStaleListener(IStaleListener listener) {
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107 changeSupport.removeStaleListener(listener);
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108 }
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109
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110 /**
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111 * Fires change event. Must be invoked from the current realm.
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112 */
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113 protected void fireChange() {
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114 checkRealm();
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115 changeSupport.fireEvent(new ChangeEvent(this));
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116 }
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117
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118 /**
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119 * Fires stale event. Must be invoked from the current realm.
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120 */
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121 protected void fireStale() {
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122 checkRealm();
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123 changeSupport.fireEvent(new StaleEvent(this));
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124 }
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125
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126 /**
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127 *
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128 */
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129 protected void firstListenerAdded() {
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130 }
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131
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132 /**
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133 *
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134 */
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135 protected void lastListenerRemoved() {
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136 }
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137
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138 /**
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139 *
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140 */
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141 public synchronized void dispose() {
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142 changeSupport = null;
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143 lastListenerRemoved();
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144 }
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145
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146 public final int size() {
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147 getterCalled();
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148 return doGetSize();
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149 }
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150
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151 /**
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152 * @return the size
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153 */
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154 protected abstract int doGetSize();
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155
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156 /**
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157 *
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158 */
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159 private void getterCalled() {
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160 ObservableTracker.getterCalled(this);
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161 }
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162
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163 public bool isEmpty() {
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164 getterCalled();
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165 return super.isEmpty();
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166 }
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167
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168 public bool contains(Object o) {
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169 getterCalled();
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170 return super.contains(o);
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171 }
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172
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173 public Iterator iterator() {
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174 getterCalled();
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175 final Iterator wrappedIterator = super.iterator();
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176 return new class() Iterator {
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177 public void remove() {
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178 wrappedIterator.remove();
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179 }
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180
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181 public bool hasNext() {
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182 return wrappedIterator.hasNext();
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183 }
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184
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185 public Object next() {
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186 return wrappedIterator.next();
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187 }
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188 };
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189 }
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190
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191 public Object[] toArray() {
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192 getterCalled();
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193 return super.toArray();
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194 }
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195
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196 public Object[] toArray(Object a[]) {
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197 getterCalled();
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198 return super.toArray(a);
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199 }
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200
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201 // Modification Operations
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202
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203 public bool add(Object o) {
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204 getterCalled();
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205 return super.add(o);
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206 }
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207
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208 /**
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209 * Moves the element located at <code>oldIndex</code> to
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210 * <code>newIndex</code>. This method is equivalent to calling
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211 * <code>add(newIndex, remove(oldIndex))</code>.
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212 * <p>
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213 * Subclasses should override this method to deliver list change
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214 * notification for the remove and add operations in the same
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215 * ListChangeEvent, as this allows {@link ListDiff#acceptcast(ListDiffVisitor)}
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216 * to recognize the operation as a move.
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217 *
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218 * @param oldIndex
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219 * the element's position before the move. Must be within the
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220 * range <code>0 &lt;= oldIndex &lt; size()</code>.
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221 * @param newIndex
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222 * the element's position after the move. Must be within the
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223 * range <code>0 &lt;= newIndex &lt; size()</code>.
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224 * @return the element that was moved.
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225 * @throws IndexOutOfBoundsException
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226 * if either argument is out of range (<code>0 &lt;= index &lt; size()</code>).
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227 * @see ListDiffVisitor#handleMove(int, int, Object)
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228 * @see ListDiff#acceptcast(ListDiffVisitor)
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229 * @since 1.1
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230 */
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231 public Object move(int oldIndex, int newIndex) {
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232 checkRealm();
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233 int size = doGetSize();
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234 if (oldIndex < 0 || oldIndex >= size)
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235 throw new IndexOutOfBoundsException(
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236 "oldIndex: " + oldIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
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237 if (newIndex < 0 || newIndex >= size)
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238 throw new IndexOutOfBoundsException(
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239 "newIndex: " + newIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
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240 Object element = remove(oldIndex);
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241 add(newIndex, element);
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242 return element;
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243 }
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244
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245 public bool remove(Object o) {
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246 getterCalled();
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247 return super.remove(o);
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248 }
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249
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250 // Bulk Modification Operations
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251
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252 public bool containsAll(Collection c) {
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253 getterCalled();
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254 return super.containsAll(c);
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255 }
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256
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257 public bool addAll(Collection c) {
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258 getterCalled();
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259 return super.addAll(c);
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260 }
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261
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262 public bool addAll(int index, Collection c) {
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263 getterCalled();
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264 return super.addAll(c);
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265 }
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266
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267 public bool removeAll(Collection c) {
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268 getterCalled();
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269 return super.removeAll(c);
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270 }
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271
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272 public bool retainAll(Collection c) {
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273 getterCalled();
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274 return super.retainAll(c);
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275 }
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276
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277 // Comparison and hashing
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278
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279 public override equals_t opEquals(Object o) {
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280 getterCalled();
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281 return super.equals(o);
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282 }
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283
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284 public override hash_t toHash() {
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285 getterCalled();
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286 return super.hashCode();
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287 }
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288
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289 public int indexOf(Object o) {
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290 getterCalled();
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291 return super.indexOf(o);
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292 }
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293
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294 public int lastIndexOf(Object o) {
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295 getterCalled();
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296 return super.lastIndexOf(o);
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297 }
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298
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299 public Realm getRealm() {
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300 return changeSupport.getRealm();
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301 }
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302
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303 /**
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304 * Asserts that the realm is the current realm.
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305 *
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306 * @see Realm#isCurrent()
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307 * @throws AssertionFailedException
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308 * if the realm is not the current realm
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309 */
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310 protected void checkRealm() {
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311 Assert.isTrue(getRealm().isCurrent(),
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312 "This operation must be run within the observable's realm"); //$NON-NLS-1$
6208d4f6a277 Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
313 }
6208d4f6a277 Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
314 }