svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / FeatureTypeManager.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib��ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | |||
42 | package org.gvsig.fmap.dal.feature.impl; |
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43 | |||
44 | import java.lang.ref.WeakReference; |
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45 | import java.util.ArrayList; |
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46 | import java.util.Arrays; |
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47 | import java.util.HashMap; |
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48 | import java.util.Iterator; |
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49 | import java.util.List; |
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50 | |||
51 | import org.gvsig.fmap.dal.exception.DataException; |
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52 | import org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform; |
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53 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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54 | import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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55 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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56 | import org.gvsig.fmap.dal.feature.Feature; |
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57 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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58 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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59 | import org.gvsig.fmap.dal.feature.FeatureStoreTransform; |
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60 | import org.gvsig.fmap.dal.feature.FeatureType; |
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61 | import org.gvsig.fmap.dal.feature.impl.expansionadapter.ExpansionAdapter; |
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62 | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider.FeatureTypeChanged; |
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63 | import org.gvsig.tools.persistence.PersistentState; |
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64 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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65 | |||
66 | /**
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67 | * DOCUMENT ME!
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68 | *
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69 | * @author Vicente Caballero Navarro
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70 | */
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71 | public class FeatureTypeManager { |
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72 | private ExpansionAdapter expansionAdapter;
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73 | private ArrayList deleted = new ArrayList();// <FeatureID> |
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74 | private int deltaSize = 0; |
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75 | private HashMap added = new HashMap(); |
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76 | private HashMap modifiedFromOriginal = new HashMap(); |
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77 | private FeatureType originalType = null; |
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78 | private boolean first = true; |
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79 | private FeatureTypeManagerFeatureStoreTransforms transforms;
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80 | private FeatureStore store;
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81 | |||
82 | public FeatureTypeManager(FeatureStore store,
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83 | ExpansionAdapter expansionAdapter) { |
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84 | this.expansionAdapter = expansionAdapter;
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85 | this.store = store;
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86 | this.transforms = new FeatureTypeManagerFeatureStoreTransforms(); |
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87 | this.transforms.setFeatureStore(store);
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88 | } |
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89 | |||
90 | public void dispose() { |
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91 | this.expansionAdapter.close();
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92 | this.expansionAdapter = null; |
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93 | this.deleted.clear();
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94 | this.deleted = null; |
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95 | this.transforms.clear();
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96 | } |
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97 | |||
98 | // public FeatureType delete(String id) {
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99 | // deleted.add(id);
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100 | // FeatureType type=(FeatureType)added.remove(id);
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101 | // if (type==null) {
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102 | // type=(FeatureType)modifiedFromOriginal.remove(id);
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103 | // }
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104 | // deltaSize--;
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105 | // return type;
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106 | // }
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107 | |||
108 | /**
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109 | * DOCUMENT ME!
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110 | *
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111 | * @param feature
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112 | * DOCUMENT ME!
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113 | */
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114 | // public void add(FeatureType type) {
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115 | // int pos = expansionAdapter.addObject(type);
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116 | // added.put(type.getId(),new Integer(pos));
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117 | // deltaSize++;
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118 | // }
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119 | /**
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120 | * DOCUMENT ME!
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121 | *
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122 | * @param id
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123 | * DOCUMENT ME!
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124 | */
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125 | // public void deleteLastFeatureType() {
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126 | // expansionAdapter.deleteLastObject();
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127 | // FeatureType
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128 | // type=(FeatureType)expansionAdapter.getObject(expansionAdapter.getSize()-1);
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129 | // added.remove(type.getId());
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130 | // modifiedFromOriginal.remove(type.getId());
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131 | // deltaSize--;
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132 | // }
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133 | /**
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134 | * DOCUMENT ME!
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135 | *
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136 | * @param id
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137 | * DOCUMENT ME!
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138 | *
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139 | * @return DOCUMENT ME!
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140 | * @throws IsNotFeatureSettingException
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141 | */
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142 | public FeatureType getType(String id) throws DataException { |
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143 | Integer intNum = ((Integer) added.get(id)); |
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144 | if (intNum == null) { |
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145 | intNum = ((Integer) modifiedFromOriginal.get(id));
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146 | if (intNum == null) { |
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147 | return null; |
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148 | } |
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149 | } |
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150 | int num = intNum.intValue();
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151 | |||
152 | if (num == -1) { |
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153 | /*
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154 | * This happens for example when we are going back to the
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155 | * original feature type which is not managed by
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156 | * expansionAdapter
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157 | */
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158 | return null; |
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159 | } |
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160 | |||
161 | FeatureType type = (FeatureType) expansionAdapter.getObject(num); |
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162 | return type;
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163 | } |
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164 | |||
165 | /**
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166 | * DOCUMENT ME!
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167 | *
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168 | * @param feature
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169 | * DOCUMENT ME!
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170 | * @param oldFeature
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171 | * DOCUMENT ME!
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172 | * @throws DataException
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173 | */
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174 | public int update(FeatureType type, FeatureType oldType) { |
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175 | // deleted.add(oldType.getId());
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176 | if (first) {
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177 | originalType = oldType; |
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178 | first = false;
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179 | } |
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180 | int oldNum = -1; |
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181 | int num = expansionAdapter.addObject(type);
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182 | String id = type.getId();
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183 | |||
184 | if (added.containsKey(id)) {
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185 | oldNum = ((Integer) added.get(id)).intValue();
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186 | added.put(id, new Integer(num)); |
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187 | } else {
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188 | if (modifiedFromOriginal.get(id) != null) { |
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189 | oldNum = ((Integer) modifiedFromOriginal.get(id)).intValue();
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190 | } |
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191 | modifiedFromOriginal.put(id, new Integer(num)); |
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192 | } |
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193 | |||
194 | try {
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195 | this.transforms.add(new UpdateFeatureTypeTransform(this.store, |
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196 | oldType, type)); |
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197 | } catch (DataException e) {
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198 | throw new RuntimeException(); // FIXME (pero esto no deberia de |
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199 | // pasar nunca)
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200 | } |
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201 | return oldNum;
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202 | } |
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203 | |||
204 | private class UpdateFeatureTypeTransform extends AbstractFeatureStoreTransform { |
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205 | private FeatureType ftSource;
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206 | |||
207 | private EditableFeatureType ftTarget_editable;
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208 | private FeatureType ftTarget_non_editable;
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209 | |||
210 | private WeakReference wkRefStore; |
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211 | private List ftypes = null; |
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212 | private List attrInSourceToUse; |
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213 | |||
214 | UpdateFeatureTypeTransform(FeatureStore featureStore, |
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215 | FeatureType ftSource, FeatureType ftTarget) { |
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216 | this.ftSource = ftSource;
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217 | |||
218 | if (ftTarget instanceof EditableFeatureType) { |
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219 | |||
220 | ftTarget_editable = (EditableFeatureType) ftTarget; |
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221 | ftTarget_non_editable = ftTarget_editable.getNotEditableCopy(); |
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222 | } else {
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223 | ftTarget_non_editable = ftTarget; |
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224 | } |
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225 | |||
226 | this.wkRefStore = new WeakReference(featureStore); |
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227 | this.initializeAttributesToUse();
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228 | } |
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229 | |||
230 | private void initializeAttributesToUse() { |
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231 | attrInSourceToUse = new ArrayList(); |
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232 | |||
233 | Iterator iter = null; |
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234 | if (ftTarget_editable != null) { |
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235 | iter = ftTarget_editable.iterator(); |
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236 | } else {
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237 | iter = ftTarget_non_editable.iterator(); |
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238 | } |
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239 | |||
240 | FeatureAttributeDescriptor tAttr, sAttr; |
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241 | EditableFeatureAttributeDescriptor ead = null;
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242 | while (iter.hasNext()) {
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243 | tAttr = (FeatureAttributeDescriptor) iter.next(); |
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244 | sAttr = this.ftSource.getAttributeDescriptor(tAttr.getName());
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245 | if (sAttr == null) { |
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246 | if (tAttr instanceof EditableFeatureAttributeDescriptor) { |
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247 | ead = (EditableFeatureAttributeDescriptor) tAttr; |
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248 | if (ead.getOriginalName() != null) { |
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249 | sAttr = this.ftSource.getAttributeDescriptor(ead.getOriginalName());
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250 | if (sAttr == null) { |
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251 | continue;
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252 | } |
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253 | } else {
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254 | continue;
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255 | } |
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256 | } else {
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257 | continue;
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258 | } |
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259 | } |
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260 | if (tAttr.getDataType() != sAttr.getDataType()) {
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261 | continue;
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262 | } |
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263 | attrInSourceToUse.add(sAttr.getName()); |
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264 | } |
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265 | } |
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266 | |||
267 | public void applyTransform(Feature source, EditableFeature target) |
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268 | throws DataException {
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269 | |||
270 | Iterator iter = target.getType().iterator();
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271 | FeatureAttributeDescriptor tAttr; |
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272 | FeatureAttributeDescriptor tAttr_edi; |
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273 | |||
274 | /*
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275 | * field name in source feature
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276 | */
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277 | String s_name;
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278 | |||
279 | /*
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280 | * field name in target feature (the same as in source
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281 | * except if renamed)
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282 | */
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283 | String t_name;
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284 | |||
285 | EditableFeatureAttributeDescriptor eatd = null;
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286 | while (iter.hasNext()) {
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287 | tAttr = (FeatureAttributeDescriptor) iter.next(); |
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288 | |||
289 | if (ftTarget_editable != null) { |
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290 | /*
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291 | * If target FT is editable, try to get original name
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292 | */
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293 | t_name = tAttr.getName(); |
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294 | s_name = t_name; |
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295 | tAttr_edi = ftTarget_editable.getAttributeDescriptor(t_name); |
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296 | if (tAttr_edi instanceof EditableFeatureAttributeDescriptor) { |
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297 | eatd = (EditableFeatureAttributeDescriptor) tAttr_edi; |
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298 | s_name = eatd.getOriginalName(); |
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299 | } |
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300 | |||
301 | /*
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302 | * If not found, use normal name
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303 | */
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304 | if (s_name == null) { |
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305 | s_name = tAttr.getName(); |
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306 | } |
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307 | } else {
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308 | /*
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309 | * If target FT is not editable, use normal name
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310 | */
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311 | t_name = tAttr.getName(); |
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312 | s_name = t_name; |
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313 | } |
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314 | |||
315 | if (source.getType().get(s_name) != null) { |
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316 | target.set(t_name, source.get(s_name)); |
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317 | } else {
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318 | target.set(t_name, tAttr.getDefaultValue()); |
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319 | } |
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320 | } |
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321 | } |
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322 | |||
323 | public FeatureType getDefaultFeatureType() throws DataException { |
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324 | return this.ftTarget_non_editable; |
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325 | } |
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326 | |||
327 | public FeatureStore getFeatureStore() {
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328 | return (FeatureStore) this.wkRefStore.get(); |
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329 | } |
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330 | |||
331 | public List getFeatureTypes() throws DataException { |
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332 | if (this.ftypes == null) { |
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333 | this.ftypes = Arrays |
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334 | .asList(new FeatureType[] { this.ftTarget_non_editable }); |
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335 | } |
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336 | return this.ftypes; |
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337 | } |
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338 | |||
339 | public FeatureType getSourceFeatureTypeFrom(
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340 | FeatureType targetFeatureType) { |
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341 | EditableFeatureType orgType = ftSource.getEditable(); |
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342 | Iterator iter = orgType.iterator();
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343 | FeatureAttributeDescriptor attr; |
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344 | EditableFeatureAttributeDescriptor efad = null;
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345 | |||
346 | while (iter.hasNext()) {
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347 | attr = (FeatureAttributeDescriptor) iter.next(); |
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348 | if (!attrInSourceToUse.contains(attr.getName())) {
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349 | if (attr instanceof EditableFeatureAttributeDescriptor) { |
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350 | efad = (EditableFeatureAttributeDescriptor) attr; |
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351 | if (efad.getOriginalName() != null && |
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352 | !attrInSourceToUse.contains(efad.getOriginalName())) { |
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353 | iter.remove(); |
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354 | } |
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355 | } else {
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356 | iter.remove(); |
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357 | } |
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358 | } |
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359 | } |
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360 | return orgType.getNotEditableCopy();
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361 | } |
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362 | |||
363 | public void setFeatureStore(FeatureStore featureStore) { |
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364 | this.wkRefStore = new WeakReference(featureStore); |
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365 | } |
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366 | |||
367 | public boolean isTransformsOriginalValues() { |
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368 | return false; |
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369 | } |
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370 | |||
371 | } |
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372 | |||
373 | /**
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374 | * DOCUMENT ME!
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375 | *
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376 | * @param id
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377 | * DOCUMENT ME!
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378 | */
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379 | public void restore(String id) { |
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380 | deleted.remove(id); |
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381 | deltaSize++; |
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382 | } |
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383 | |||
384 | public void restore(String id, int num) { |
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385 | if (added.containsKey(id)) {
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386 | added.put(id, new Integer(num)); |
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387 | } else {
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388 | modifiedFromOriginal.put(id, new Integer(num)); |
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389 | } |
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390 | } |
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391 | |||
392 | public boolean isDeleted(FeatureType type) { |
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393 | return deleted.contains(type.getId());
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394 | } |
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395 | |||
396 | public boolean isDeleted(String id) { |
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397 | return deleted.contains(id);
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398 | } |
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399 | |||
400 | public void clear() { |
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401 | added.clear(); |
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402 | modifiedFromOriginal.clear(); |
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403 | expansionAdapter.close(); |
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404 | deleted.clear();// <FeatureID>
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405 | deltaSize = 0;
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406 | } |
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407 | |||
408 | public boolean hasChanges() { |
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409 | return added.size() > 0 || modifiedFromOriginal.size() > 0 |
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410 | || deleted.size() > 0;
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411 | } |
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412 | |||
413 | public Iterator newsIterator() { |
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414 | return added.values().iterator();
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415 | } |
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416 | |||
417 | public boolean hasNews() { |
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418 | return !added.isEmpty();
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419 | } |
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420 | |||
421 | public long getDeltaSize() { |
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422 | return deltaSize;
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423 | } |
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424 | |||
425 | public FeatureType getOriginalFeatureType() {
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426 | return originalType;
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427 | } |
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428 | |||
429 | public DefaultFeatureStoreTransforms getTransforms() {
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430 | return this.transforms; |
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431 | } |
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432 | |||
433 | public class FeatureTypeManagerFeatureStoreTransforms extends |
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434 | DefaultFeatureStoreTransforms { |
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435 | |||
436 | private FeatureTypeManagerFeatureStoreTransforms() {
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437 | |||
438 | } |
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439 | |||
440 | protected void checkEditingMode() { |
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441 | return;
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442 | } |
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443 | |||
444 | protected void notifyChangeToStore() { |
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445 | return;
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446 | } |
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447 | |||
448 | public PersistentState getState() throws PersistenceException { |
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449 | // FIXME
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450 | throw new UnsupportedOperationException(); |
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451 | } |
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452 | |||
453 | public void loadState(PersistentState state) |
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454 | throws PersistenceException {
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455 | // FIXME
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456 | throw new UnsupportedOperationException(); |
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457 | } |
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458 | |||
459 | public void loadFromState(PersistentState state) throws PersistenceException { |
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460 | // FIXME
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461 | throw new UnsupportedOperationException(); |
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462 | } |
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463 | |||
464 | public FeatureStoreTransform add(FeatureStoreTransform transform)
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465 | throws DataException {
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466 | if (!(transform instanceof UpdateFeatureTypeTransform)) { |
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467 | // FIXME
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468 | throw new IllegalArgumentException(); |
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469 | } |
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470 | return super.add(transform); |
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471 | } |
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472 | |||
473 | } |
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474 | |||
475 | public class FeatureTypesChangedItem implements FeatureTypeChanged { |
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476 | |||
477 | private FeatureType source;
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478 | private FeatureType target;
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479 | |||
480 | public FeatureTypesChangedItem(FeatureType source, FeatureType target) {
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481 | this.source = source;
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482 | this.target = target;
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483 | } |
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484 | |||
485 | public FeatureType getSource() {
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486 | return source;
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487 | } |
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488 | |||
489 | public FeatureType getTarget() {
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490 | return target;
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491 | } |
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492 | |||
493 | } |
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494 | |||
495 | public Iterator getFeatureTypesChanged() throws DataException { |
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496 | // FIXME this don't work for Store.fType.size() > 1
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497 | List list = new ArrayList(); |
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498 | if (modifiedFromOriginal.size() > 0) { |
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499 | FeatureType src = this.getOriginalFeatureType();
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500 | list.add(new FeatureTypesChangedItem(src, this.store |
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501 | .getFeatureType(src.getId()))); |
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502 | } |
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503 | return list.iterator();
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504 | } |
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505 | |||
506 | } |