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 / featureset / EditedIterator.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | package org.gvsig.fmap.dal.feature.impl.featureset; |
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23 | |||
24 | import java.util.Iterator; |
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25 | |||
26 | import org.gvsig.fmap.dal.exception.DataException; |
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27 | import org.gvsig.fmap.dal.feature.FeatureReference; |
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28 | import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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29 | import org.gvsig.fmap.dal.feature.impl.DefaultFeature; |
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30 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureReference; |
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31 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStore; |
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32 | import org.gvsig.fmap.dal.feature.impl.FeatureManager; |
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33 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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34 | import org.gvsig.tools.dispose.DisposableIterator; |
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35 | import org.gvsig.tools.exception.BaseException; |
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36 | |||
37 | /**
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38 | * Iterator for stores in edition mode.
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39 | *
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40 | * @author gvSIG Team
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41 | * @version $Id$
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42 | * @deprecated use the {@link FastEditedIterator} instead
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43 | */
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44 | public class EditedIterator extends FilteredIterator { |
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45 | |||
46 | private Iterator newsFeatures; |
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47 | private boolean featureIsNew; |
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48 | private DefaultFeatureStore store;
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49 | protected FeatureManager featureManager;
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50 | |||
51 | public EditedIterator(DefaultFeatureSet featureSet) {
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52 | super(featureSet);
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53 | this.store = featureSet.store;
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54 | this.featureManager = this.store.getFeatureManager(); |
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55 | } |
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56 | |||
57 | public EditedIterator(DefaultFeatureSet featureSet, long index) |
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58 | throws DataException {
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59 | this(featureSet);
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60 | this.newsFeatures = null; |
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61 | if (index > 0) { |
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62 | if (featureSet.provider.canIterateFromIndex()) {
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63 | try {
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64 | this.iterator = featureSet.provider.iterator(index);
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65 | } catch (IllegalArgumentException e) { |
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66 | this.iterator = featureSet.provider.iterator();
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67 | skypto(index); |
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68 | } catch (UnsupportedOperationException e) { |
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69 | this.iterator = featureSet.provider.iterator();
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70 | skypto(index); |
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71 | } |
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72 | } else {
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73 | this.iterator = featureSet.provider.iterator();
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74 | skypto(index); |
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75 | } |
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76 | } else {
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77 | this.iterator = featureSet.provider.iterator();
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78 | } |
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79 | |||
80 | } |
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81 | |||
82 | public void remove() { |
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83 | if(this.getIterator() == newsFeatures) { |
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84 | newsFeatures.remove(); |
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85 | } else {
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86 | super.remove();
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87 | } |
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88 | } |
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89 | |||
90 | public boolean hasNext() { |
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91 | if (store.isEditing()) {
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92 | return super.hasNext(); |
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93 | } else {
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94 | throw new ConcurrentDataModificationException(store.getFullName()); |
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95 | } |
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96 | } |
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97 | |||
98 | public Object next() { |
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99 | if (store.isEditing()) {
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100 | return super.next(); |
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101 | } else {
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102 | throw new ConcurrentDataModificationException(store.getFullName()); |
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103 | } |
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104 | } |
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105 | |||
106 | protected void setNewsFeatures(Iterator newsFeatures) { |
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107 | this.newsFeatures = newsFeatures;
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108 | } |
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109 | |||
110 | protected boolean isFeatureIsNew() { |
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111 | return featureIsNew;
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112 | } |
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113 | |||
114 | protected Iterator getIterator() { |
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115 | if (this.featureIsNew) { |
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116 | return this.newsFeatures; |
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117 | } else
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118 | if (this.iterator.hasNext()) { |
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119 | featureIsNew = false;
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120 | return this.iterator; |
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121 | } else {
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122 | featureIsNew = true;
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123 | this.newsFeatures = this.featureManager.getInserted(); |
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124 | return this.newsFeatures; |
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125 | } |
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126 | } |
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127 | |||
128 | protected DefaultFeature createFeature(FeatureProvider data) throws DataException { |
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129 | |||
130 | DefaultFeature f = null;
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131 | data.setNew(featureIsNew); |
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132 | try {
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133 | FeatureReference ref = new DefaultFeatureReference(store, data);
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134 | f = |
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135 | (DefaultFeature) this.featureManager.get(ref, store,
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136 | data.getType()); |
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137 | } catch (DataException e) {
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138 | RuntimeException ex = new RuntimeException(); |
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139 | e.initCause(e); |
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140 | throw ex;
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141 | } |
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142 | if (f == null) { |
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143 | // La feature no se ha editado.
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144 | f = new DefaultFeature(store, data);
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145 | } |
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146 | if (this.fset.transform.isEmpty()) { |
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147 | return f;
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148 | } else {
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149 | return (DefaultFeature) this.fset.transform.applyTransform( |
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150 | f, fset.getDefaultFeatureType()); |
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151 | } |
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152 | } |
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153 | |||
154 | protected boolean isDeletedOrHasToSkip(FeatureProvider data) { |
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155 | |||
156 | // XXX
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157 | // si recorriendo los originales nos
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158 | // encontramos uno nuevo, no lo devolvemos
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159 | // porque se recorrera mas tarde.
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160 | // Esto es una interaccion con los indices
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161 | // ya que estos contienen todas las features ya
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162 | // sea nuevas o no
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163 | |||
164 | if (data.isNew() && !featureIsNew) {
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165 | return true; |
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166 | } |
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167 | FeatureReference ref = new DefaultFeatureReference(store, data);
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168 | return this.featureManager.isDeleted(ref); |
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169 | } |
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170 | |||
171 | protected void doDispose() throws BaseException { |
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172 | super.doDispose();
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173 | if (newsFeatures instanceof DisposableIterator) { |
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174 | ((DisposableIterator) newsFeatures).dispose(); |
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175 | } |
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176 | newsFeatures = null;
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177 | this.featureManager = null; |
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178 | this.store = null; |
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179 | } |
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180 | |||
181 | } |