Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageWidget.java @ 1279:af6ad7522351
Bugfix: #336 Improved determination of min/max KM values - code moved to ArtifactDescription.
flys-client/trunk@2861 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 29 Sep 2011 09:14:41 +0000 |
parents | d0500e993218 |
children | e8bb11976c70 |
rev | line source |
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1 package de.intevation.flys.client.client.ui; |
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2 |
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3 import de.intevation.flys.client.client.event.DatacageHandler; |
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4 import de.intevation.flys.client.client.event.DatacageDoubleClickHandler; |
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5 |
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6 import com.google.gwt.core.client.GWT; |
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7 |
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8 import com.google.gwt.user.client.rpc.AsyncCallback; |
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9 |
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10 import com.smartgwt.client.util.SC; |
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11 |
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12 import com.smartgwt.client.widgets.Button; |
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13 |
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14 import com.smartgwt.client.widgets.tree.Tree; |
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15 import com.smartgwt.client.widgets.tree.TreeGrid; |
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16 import com.smartgwt.client.widgets.tree.TreeNode; |
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17 |
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18 import com.smartgwt.client.types.SelectionStyle; |
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19 import com.smartgwt.client.types.TreeModelType; |
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20 |
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21 import com.smartgwt.client.widgets.layout.VLayout; |
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22 |
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23 import com.smartgwt.client.widgets.events.ClickHandler; |
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24 import com.smartgwt.client.widgets.events.ClickEvent; |
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25 |
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26 import com.smartgwt.client.widgets.grid.ListGridRecord; |
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27 |
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28 import com.smartgwt.client.widgets.grid.events.RecordDoubleClickEvent; |
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29 import com.smartgwt.client.widgets.grid.events.RecordDoubleClickHandler; |
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30 |
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31 import de.intevation.flys.client.shared.model.Artifact; |
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32 import de.intevation.flys.client.shared.model.User; |
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33 import de.intevation.flys.client.shared.model.ToLoad; |
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34 |
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35 import de.intevation.flys.client.client.FLYSConstants; |
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36 import de.intevation.flys.client.client.Config; |
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37 |
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38 import de.intevation.flys.client.client.services.MetaDataService; |
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39 import de.intevation.flys.client.client.services.MetaDataServiceAsync; |
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40 |
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41 import de.intevation.flys.client.shared.model.DataCageTree; |
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42 import de.intevation.flys.client.shared.model.DataCageNode; |
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43 import de.intevation.flys.client.shared.model.AttrList; |
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44 |
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45 import java.util.ArrayList; |
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46 import java.util.List; |
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47 import java.util.Stack; |
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48 |
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49 // TODO: refactor, extract ~DataCageGrid |
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50 public class DatacageWidget |
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51 extends VLayout |
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52 { |
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53 protected MetaDataServiceAsync metaDataService = |
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54 GWT.create(MetaDataService.class); |
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55 |
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56 protected FLYSConstants messages = |
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57 GWT.create(FLYSConstants.class); |
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58 |
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59 protected Artifact artifact; |
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60 protected User user; |
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61 protected String outs; |
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62 protected String parameters; |
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63 |
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64 protected TreeGrid treeGrid; |
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65 protected Tree tree; |
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66 |
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67 protected ToLoad toLoad; |
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68 |
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69 protected List<DatacageHandler> handlers; |
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70 protected List<DatacageDoubleClickHandler> doubleHandlers; |
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71 |
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72 |
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73 public DatacageWidget() { |
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74 handlers = new ArrayList<DatacageHandler>(); |
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75 doubleHandlers = new ArrayList<DatacageDoubleClickHandler>(); |
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76 } |
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77 |
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78 |
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79 public DatacageWidget(Artifact artifact, User user) { |
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80 this(artifact, user, null); |
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81 } |
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82 |
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83 public DatacageWidget(Artifact artifact, User user, String outs) { |
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84 this(artifact, user, outs, true); |
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85 } |
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86 |
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87 public DatacageWidget( |
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88 Artifact artifact, |
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89 User user, |
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90 String outs, |
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91 boolean showButton |
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92 ) { |
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93 this(artifact, user, outs, null, showButton); |
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94 } |
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95 |
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96 |
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97 public DatacageWidget( |
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98 Artifact artifact, |
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99 User user, |
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100 String outs, |
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101 String parameters, |
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102 boolean showButton |
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103 ) { |
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104 this(); |
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105 |
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106 this.artifact = artifact; |
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107 this.user = user; |
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108 this.outs = outs; |
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109 this.parameters = parameters; |
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110 |
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111 toLoad = new ToLoad(); |
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112 |
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113 setWidth100(); |
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114 |
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115 tree = new Tree(); |
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116 tree.setModelType(TreeModelType.PARENT); |
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117 tree.setNameProperty("name"); |
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118 tree.setIdField("id"); |
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119 tree.setParentIdField("parent-id"); |
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120 |
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121 treeGrid = new TreeGrid(); |
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122 treeGrid.setLoadDataOnDemand(false); |
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123 treeGrid.setWidth100(); |
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124 treeGrid.setHeight100(); |
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125 treeGrid.setShowRoot(false); |
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126 |
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127 treeGrid.addRecordDoubleClickHandler(new RecordDoubleClickHandler() { |
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128 @Override |
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129 public void onRecordDoubleClick(RecordDoubleClickEvent event) { |
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130 doubleClickedOnTree(event); |
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131 } |
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132 }); |
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133 |
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134 addMember(treeGrid); |
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135 |
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136 if (showButton) { |
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137 addMember(createPlusButton()); |
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138 } |
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139 |
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140 triggerTreeBuilding(); |
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141 } |
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142 |
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143 |
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144 /** |
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145 * @param handler Handler to be added (notified on add-action). |
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146 */ |
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147 public DatacageWidget(Artifact artifact, User user, String outs, |
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148 DatacageHandler handler) { |
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149 this(artifact, user, outs); |
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150 this.addDatacageHandler(handler); |
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151 } |
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152 |
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153 |
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154 public DatacageWidget( |
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155 Artifact artifact, |
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156 User user, |
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157 String outs, |
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158 DatacageHandler handler, |
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159 String parameters |
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160 ) { |
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161 this(artifact, user, outs, handler); |
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162 this.parameters = parameters; |
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163 } |
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164 |
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165 |
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166 public void setIsMutliSelectable(boolean multi) { |
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167 if (multi) { |
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168 treeGrid.setSelectionType(SelectionStyle.MULTIPLE); |
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169 } |
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170 else { |
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171 treeGrid.setSelectionType(SelectionStyle.SINGLE); |
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172 } |
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173 } |
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174 |
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175 |
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176 /** |
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177 * @param handler Handler to be added (notified on add-action). |
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178 */ |
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179 public void addDatacageHandler(DatacageHandler handler) { |
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180 if (!handlers.contains(handler)) { |
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181 handlers.add(handler); |
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182 } |
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183 } |
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184 |
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185 |
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186 /** |
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187 * @param h Handler to be added (notified on Double click on node). |
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188 */ |
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189 public void addDatacageDoubleClickHandler(DatacageDoubleClickHandler h) { |
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190 if (!doubleHandlers.contains(h)) { |
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191 doubleHandlers.add(h); |
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192 } |
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193 } |
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194 |
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195 |
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196 /** |
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197 * @param handler Handler to remove from list. |
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198 */ |
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199 public void removeDatacageHandler(DatacageHandler handler) { |
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200 handlers.remove(handler); |
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201 } |
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202 |
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203 |
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204 public ToLoad getToLoad() { |
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205 return toLoad; |
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206 } |
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207 |
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208 |
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209 public ToLoad getSelection() { |
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210 // Reset content of toLoads. |
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211 toLoad = new ToLoad(); |
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212 |
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213 if (treeGrid == null) { |
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214 return toLoad; |
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215 } |
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216 |
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217 ListGridRecord [] selection = treeGrid.getSelection(); |
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218 |
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219 if (selection != null) { |
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220 for (ListGridRecord record: selection) { |
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221 if (record instanceof TreeNode) { |
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222 collectToLoads((TreeNode)record); |
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223 } |
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224 } |
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225 } |
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226 |
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227 return toLoad; |
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228 } |
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229 |
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230 |
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231 /** |
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232 * Callback for add-button. |
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233 * Fires to load for every selected element and handler. |
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234 */ |
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235 public void plusClicked() { |
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236 if (!getSelection().isEmpty()) { |
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237 fireToLoad(); |
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238 } |
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239 } |
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240 |
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241 |
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242 protected Button createPlusButton() { |
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243 // TODO: i18n + icon |
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244 Button plusBtn = new Button("+"); |
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245 plusBtn.addClickHandler(new ClickHandler() { |
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246 @Override |
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247 public void onClick(ClickEvent event) { |
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248 plusClicked(); |
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249 } |
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250 }); |
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251 return plusBtn; |
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252 } |
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253 |
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254 |
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255 protected void fireToLoad() { |
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256 for (DatacageHandler handler: handlers) { |
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257 handler.toLoad(toLoad); |
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258 } |
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259 } |
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260 |
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261 |
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262 protected void fireOnDoubleClick() { |
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263 for (DatacageDoubleClickHandler handler: doubleHandlers) { |
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264 handler.onDoubleClick(toLoad); |
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265 } |
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266 } |
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267 |
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268 |
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269 protected void doubleClickedOnTree(RecordDoubleClickEvent event) { |
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270 TreeNode node = (TreeNode)event.getRecord(); |
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271 collectToLoads(node); |
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272 fireOnDoubleClick(); |
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273 } |
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274 |
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275 |
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276 protected void collectToLoads(TreeNode node) { |
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277 Stack<TreeNode> stack = new Stack<TreeNode>(); |
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278 |
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279 stack.push(node); |
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280 |
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281 while (!stack.isEmpty()) { |
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282 node = stack.pop(); |
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283 String factory = node.getAttribute("factory"); |
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284 if (factory != null) { // we need at least a factory |
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285 String artifact = node.getAttribute("artifact-id"); |
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286 String out = node.getAttribute("out"); |
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287 String name = node.getAttribute("facet"); |
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288 String ids = node.getAttribute("ids"); |
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289 |
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290 toLoad.add(artifact, factory, out, name, ids); |
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291 } |
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292 TreeNode [] children = tree.getChildren(node); |
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293 if (children != null) { |
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294 for (TreeNode child: children) { |
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295 stack.push(child); |
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296 } |
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297 } |
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298 } |
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299 } |
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300 |
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301 |
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302 protected void triggerTreeBuilding() { |
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303 Config config = Config.getInstance(); |
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304 String url = config.getServerUrl(); |
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305 String locale = config.getLocale(); |
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306 |
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307 String artifactId = artifact.getUuid(); |
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308 String userId = (user != null) ? user.identifier() : null; |
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309 |
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310 metaDataService.getMetaData( |
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311 url, locale, |
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312 artifactId, |
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313 userId, |
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314 outs, |
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315 parameters, |
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316 new AsyncCallback<DataCageTree>() { |
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317 public void onFailure(Throwable caught) { |
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318 GWT.log("Could not load meta data."); |
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319 SC.warn(caught.getMessage()); |
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320 } |
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321 |
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322 public void onSuccess(DataCageTree dcTree) { |
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323 GWT.log("Successfully loaded meta data."); |
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324 tree.setData(treeToData(dcTree)); |
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325 treeGrid.setData(tree); |
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326 } |
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327 }); |
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328 } |
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329 |
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330 private static class IdGenerator { |
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331 protected int current; |
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332 |
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333 public IdGenerator() { |
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334 } |
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335 |
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336 public IdGenerator(int start) { |
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337 current = start; |
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338 } |
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339 |
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340 public int next() { |
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341 return current++; |
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342 } |
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343 } // class IdGenerator |
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344 |
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345 protected static void buildRecursive( |
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346 DataCageNode node, |
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347 int parentId, |
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348 IdGenerator idGenerator, |
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349 List<TreeNode> nodes |
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350 ) { |
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351 TreeNode tn = new TreeNode(); |
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352 int id = idGenerator.next(); |
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353 tn.setAttribute("parent-id", parentId); |
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354 tn.setAttribute("id", id); |
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355 // TODO: i18n |
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356 tn.setAttribute("name", node.getDescription()); |
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357 tn.setAttribute("facet", node.getName()); |
848
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358 nodes.add(tn); |
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359 AttrList attrs = node.getAttributes(); |
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360 if (attrs != null) { |
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361 for (int i = 0, N = attrs.size(); i < N; ++i) { |
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362 String key = attrs.getKey(i); |
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363 String value = attrs.getValue(i); |
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364 tn.setAttribute(key, value); |
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365 } |
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366 } |
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367 List<DataCageNode> children = node.getChildren(); |
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368 if (children != null) { |
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369 for (DataCageNode child: children) { |
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370 buildRecursive(child, id, idGenerator, nodes); |
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371 } |
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372 } |
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373 } |
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374 |
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375 |
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376 protected static TreeNode [] treeToData(DataCageTree tree) { |
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377 List<TreeNode> nodes = new ArrayList<TreeNode>(); |
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378 |
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379 DataCageNode root = tree.getRoot(); |
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380 |
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381 IdGenerator idGenerator = new IdGenerator(); |
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382 |
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383 buildRecursive(root, idGenerator.next(), idGenerator, nodes); |
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384 |
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385 return nodes.toArray(new TreeNode[nodes.size()]); |
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386 } |
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387 } |
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388 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |