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annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/internal/databinding/observable/masterdetail/DetailObservableList.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
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1 /*******************************************************************************
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2 * Copyright (c) 2005-2008 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 147515
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11 * Matthew Hall - bug 221351
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12 *******************************************************************************/
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13 module org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableList;
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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.ArrayList;
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18 import java.util.Collection;
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19 import java.util.Collections;
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20 import java.util.List;
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21
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22 import org.eclipse.core.databinding.observable.Diffs;
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23 import org.eclipse.core.databinding.observable.IObserving;
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24 import org.eclipse.core.databinding.observable.list.IListChangeListener;
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25 import org.eclipse.core.databinding.observable.list.IObservableList;
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26 import org.eclipse.core.databinding.observable.list.ListChangeEvent;
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27 import org.eclipse.core.databinding.observable.list.ObservableList;
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28 import org.eclipse.core.databinding.observable.masterdetail.IObservableFactory;
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29 import org.eclipse.core.databinding.observable.value.IObservableValue;
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30 import org.eclipse.core.databinding.observable.value.IValueChangeListener;
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31 import org.eclipse.core.databinding.observable.value.ValueChangeEvent;
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32 import org.eclipse.core.runtime.Assert;
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33
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34 /**
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35 * @since 3.2
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36 *
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37 */
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38
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39 public class DetailObservableList : ObservableList , IObserving {
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40
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41 private bool updating = false;
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42
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43 private IListChangeListener innerChangeListener = new class() IListChangeListener {
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44 public void handleListChange(ListChangeEvent event) {
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45 if (!updating) {
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46 fireListChange(event.diff);
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47 }
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48 }
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49 };
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50
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51 private Object currentOuterValue;
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52
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53 private IObservableList innerObservableList;
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54
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55 private IObservableFactory factory;
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56
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57 private IObservableValue outerObservableValue;
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58
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59 private Object detailType;
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60
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61 /**
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62 * @param factory
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63 * @param outerObservableValue
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64 * @param detailType
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65 */
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66 public this(IObservableFactory factory,
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67 IObservableValue outerObservableValue, Object detailType) {
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68 super(outerObservableValue.getRealm(), Collections.EMPTY_LIST, detailType);
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69 this.factory = factory;
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70 this.outerObservableValue = outerObservableValue;
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71 this.detailType = detailType;
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72 updateInnerObservableList(outerObservableValue);
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73
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74 outerObservableValue.addValueChangeListener(outerChangeListener);
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75 }
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76
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77 IValueChangeListener outerChangeListener = new class() IValueChangeListener {
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78 public void handleValueChange(ValueChangeEvent event) {
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79 List oldList = new ArrayList(wrappedList);
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80 updateInnerObservableList(outerObservableValue);
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81 fireListChange(Diffs.computeListDiff(oldList, wrappedList));
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82 }
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83 };
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84
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85 private void updateInnerObservableList(IObservableValue outerObservableValue) {
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86 if (innerObservableList !is null) {
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87 innerObservableList.removeListChangeListener(innerChangeListener);
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88 innerObservableList.dispose();
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89 }
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90 currentOuterValue = outerObservableValue.getValue();
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91 if (currentOuterValue is null) {
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92 innerObservableList = null;
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93 wrappedList = Collections.EMPTY_LIST;
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94 } else {
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95 this.innerObservableList = cast(IObservableList) factory
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96 .createObservable(currentOuterValue);
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97 wrappedList = innerObservableList;
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98
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99 if (detailType !is null) {
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100 Object innerValueType = innerObservableList.getElementType();
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101 Assert.isTrue(getElementType().equals(innerValueType),
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102 "Cannot change value type in a nested observable list"); //$NON-NLS-1$
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103 }
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104 innerObservableList.addListChangeListener(innerChangeListener);
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105 }
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106 }
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107
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108 public bool add(Object o) {
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109 return wrappedList.add(o);
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110 }
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111
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112 public void add(int index, Object element) {
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113 wrappedList.add(index, element);
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114 }
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115
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116 public bool remove(Object o) {
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117 return wrappedList.remove(o);
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118 }
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119
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120 public Object set(int index, Object element) {
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121 return wrappedList.set(index, element);
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122 }
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123
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124 public Object move(int oldIndex, int newIndex) {
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125 if (innerObservableList !is null)
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126 return innerObservableList.move(oldIndex, newIndex);
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127 return super.move(oldIndex, newIndex);
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128 }
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129
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130 public Object remove(int index) {
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131 return wrappedList.remove(index);
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132 }
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133
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134 public bool addAll(Collection c) {
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135 return wrappedList.addAll(c);
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136 }
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137
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138 public bool addAll(int index, Collection c) {
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139 return wrappedList.addAll(index, c);
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140 }
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141
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142 public bool removeAll(Collection c) {
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143 return wrappedList.removeAll(c);
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144 }
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145
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146 public bool retainAll(Collection c) {
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147 return wrappedList.retainAll(c);
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148 }
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149
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150 public void clear() {
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151 wrappedList.clear();
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152 }
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153
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154 public void dispose() {
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155 super.dispose();
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156
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157 if (outerObservableValue !is null) {
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158 outerObservableValue.removeValueChangeListener(outerChangeListener);
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159 outerObservableValue.dispose();
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160 }
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161 if (innerObservableList !is null) {
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162 innerObservableList.removeListChangeListener(innerChangeListener);
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163 innerObservableList.dispose();
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164 }
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165 currentOuterValue = null;
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166 factory = null;
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167 innerObservableList = null;
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168 innerChangeListener = null;
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169 }
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170
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171 public Object getObserved() {
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172 if ( null !is cast(IObserving)innerObservableList ) {
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173 return (cast(IObserving) innerObservableList).getObserved();
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174 }
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175 return null;
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176 }
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177 }