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 / FastEditedIterator.java @ 43727
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | 40559 | jjdelcerro | *
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11 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | *
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16 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | 40435 | jjdelcerro | * MA 02110-1301, USA.
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20 | 40559 | jjdelcerro | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.fmap.dal.feature.impl.featureset; |
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25 | |||
26 | import org.gvsig.fmap.dal.exception.DataException; |
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27 | 41183 | jldominguez | import org.gvsig.fmap.dal.feature.EditableFeature; |
28 | import org.gvsig.fmap.dal.feature.Feature; |
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29 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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30 | import org.gvsig.fmap.dal.feature.FeatureAttributeGetter; |
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31 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.FeatureReference; |
32 | 41183 | jldominguez | import org.gvsig.fmap.dal.feature.FeatureType; |
33 | import org.gvsig.fmap.dal.feature.impl.DefaultEditableFeature; |
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34 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.impl.DefaultFeature; |
35 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureReference; |
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36 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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37 | import org.gvsig.tools.exception.BaseException; |
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38 | |||
39 | /**
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40 | * Iterator implementation which shares the returned Feature object instance.
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41 | *
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42 | * @author gvSIG Team
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43 | * @version $Id$
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44 | */
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45 | public class FastEditedIterator extends EditedIterator { |
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46 | |||
47 | DefaultFeature myFeature; |
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48 | |||
49 | public FastEditedIterator(DefaultFeatureSet featureSet, long index) |
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50 | throws DataException {
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51 | super(featureSet);
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52 | this.initializeFeature();
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53 | if (index > 0) { |
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54 | 40629 | jldominguez | |
55 | this.iterator = featureSet.provider.fastIterator();
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56 | setNewsFeatures(null);
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57 | skypto(index); |
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58 | |||
59 | /*
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60 | * This did not work because the provider
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61 | * skips to the index without considering the
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62 | * changes in editing mode. We need the
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63 | * "skypto" method which knows about those
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64 | * changes.
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65 | *
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66 | 40435 | jjdelcerro | if (featureSet.provider.canIterateFromIndex()) {
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67 | try {
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68 | this.iterator = featureSet.provider.fastIterator(index);
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69 | } catch (IllegalArgumentException e) {
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70 | this.iterator = featureSet.provider.fastIterator();
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71 | setNewsFeatures(null);
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72 | skypto(index);
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73 | } catch (UnsupportedOperationException e) {
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74 | this.iterator = featureSet.provider.fastIterator();
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75 | setNewsFeatures(null);
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76 | skypto(index);
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77 | }
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78 | } else {
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79 | this.iterator = featureSet.provider.fastIterator();
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80 | setNewsFeatures(null);
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81 | skypto(index);
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82 | }
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83 | 40629 | jldominguez | */
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84 | |||
85 | 40435 | jjdelcerro | } else {
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86 | this.iterator = featureSet.provider.fastIterator();
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87 | setNewsFeatures(featureManager.getInserted()); |
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88 | } |
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89 | |||
90 | } |
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91 | |||
92 | protected void initializeFeature() { |
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93 | myFeature = new DefaultFeature(fset.store);
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94 | } |
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95 | |||
96 | protected DefaultFeature createFeature(FeatureProvider data) throws DataException { |
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97 | |||
98 | DefaultFeature f = null;
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99 | try {
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100 | data.setNew(isFeatureIsNew()); |
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101 | 43727 | jjdelcerro | FeatureReference ref = new DefaultFeatureReference(fset.store, data);
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102 | f = (DefaultFeature) featureManager.get(ref, fset.store); |
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103 | 40435 | jjdelcerro | } catch (DataException e) {
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104 | RuntimeException ex = new RuntimeException(); |
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105 | e.initCause(e); |
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106 | throw ex;
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107 | } |
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108 | if (f == null) { |
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109 | this.myFeature.setData(data);
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110 | } else {
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111 | // TODO Sacamos una copia del data o no???
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112 | this.myFeature.setData(f.getData().getCopy());
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113 | } |
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114 | if (this.fset.transform.isEmpty()) { |
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115 | return myFeature;
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116 | } else {
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117 | 41183 | jldominguez | |
118 | if (f == null) { |
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119 | myFeature = (DefaultFeature) |
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120 | this.fset.transform.applyTransform(myFeature,
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121 | fset.getDefaultFeatureType()); |
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122 | } else {
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123 | /*
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124 | * In this case "f != null" the data comes from the featureManager,
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125 | * so it is data inserted/updated by the user, so we must
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126 | * overwrite the data after applying the transformations
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127 | * because the transformations can be "Adding field"
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128 | * and are necessary in some cases:
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129 | */
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130 | DefaultFeature saved_feat = (DefaultFeature) myFeature.getCopy(); |
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131 | myFeature = (DefaultFeature) |
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132 | this.fset.transform.applyTransform(myFeature,
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133 | fset.getDefaultFeatureType()); |
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134 | myFeature = overwrite(myFeature, saved_feat); |
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135 | } |
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136 | return myFeature;
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137 | 40435 | jjdelcerro | } |
138 | |||
139 | } |
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140 | |||
141 | 41183 | jldominguez | private DefaultFeature overwrite(
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142 | DefaultFeature old_feat, |
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143 | DefaultFeature new_feat) { |
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144 | |||
145 | DefaultEditableFeature resp = (DefaultEditableFeature) old_feat.getEditable(); |
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146 | |||
147 | FeatureType fty = new_feat.getData().getType(); |
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148 | FeatureAttributeDescriptor[] atts = fty.getAttributeDescriptors();
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149 | for (int i=0; i<atts.length; i++) { |
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150 | try {
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151 | resp.set(atts[i].getName(), new_feat.get(atts[i].getName())); |
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152 | } catch (Exception exc) { |
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153 | // Field not found
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154 | } |
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155 | } |
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156 | return (DefaultFeature) resp.getNotEditableCopy();
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157 | } |
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158 | |||
159 | 40435 | jjdelcerro | public void remove() { |
160 | super.remove();
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161 | this.initializeFeature();
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162 | } |
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163 | |||
164 | protected void doDispose() throws BaseException { |
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165 | super.doDispose();
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166 | myFeature = null;
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167 | } |
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168 | |||
169 | } |