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 / DefaultFeatureSet.java
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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 | 40435 | jjdelcerro | *
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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 | 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 | *
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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 | 40559 | jjdelcerro | * 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 java.util.ArrayList; |
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27 | import java.util.Collections; |
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28 | import java.util.Iterator; |
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29 | import java.util.List; |
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30 | import java.util.NoSuchElementException; |
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31 | |||
32 | import org.gvsig.fmap.dal.exception.DataException; |
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33 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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34 | 44753 | omartinez | import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
35 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.Feature; |
36 | import org.gvsig.fmap.dal.feature.FeatureIndexes; |
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37 | import org.gvsig.fmap.dal.feature.FeatureQuery; |
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38 | import org.gvsig.fmap.dal.feature.FeatureQueryOrder; |
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39 | 43026 | jjdelcerro | import org.gvsig.fmap.dal.feature.FeatureQueryOrder.FeatureQueryOrderMember; |
40 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.FeatureSet; |
41 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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42 | import org.gvsig.fmap.dal.feature.FeatureStoreNotification; |
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43 | import org.gvsig.fmap.dal.feature.FeatureType; |
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44 | import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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45 | import org.gvsig.fmap.dal.feature.exception.FeatureSetInitializeException; |
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46 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStore; |
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47 | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStoreTransforms; |
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48 | 44753 | omartinez | import org.gvsig.fmap.dal.feature.impl.DefaultFeatureType; |
49 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
50 | import org.gvsig.tools.dispose.DisposableIterator; |
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51 | 44113 | jjdelcerro | import org.gvsig.tools.dispose.DisposeUtils; |
52 | 40435 | jjdelcerro | import org.gvsig.tools.evaluator.Evaluator; |
53 | import org.gvsig.tools.observer.Observable; |
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54 | import org.gvsig.tools.observer.Observer; |
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55 | |||
56 | 43089 | jjdelcerro | public class DefaultFeatureSet extends AbstractFeatureSet implements |
57 | 40435 | jjdelcerro | FeatureSet, Observer {
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58 | 46485 | fdiaz | |
59 | 44113 | jjdelcerro | protected static final int NO_CHECKED = -1; |
60 | protected static final int DEFAULT = 0; |
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61 | protected static final int FILTERED = 1; |
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62 | protected static final int ORDERED = 2; |
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63 | protected static final int ORDERED_FILTERED = 3; |
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64 | protected static final int EDITED = 4; |
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65 | protected static final int EDITED_FILTERED = 5; |
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66 | protected static final int ORDERD_EDITED = 6; |
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67 | protected static final int ORDERED_EDITED_FILTER = 7; |
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68 | 40435 | jjdelcerro | |
69 | 45425 | jjdelcerro | protected Throwable sourceStoreModifiedCause; |
70 | 44113 | jjdelcerro | protected boolean sourceStoreModified; |
71 | protected boolean ownFeaturesModified; |
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72 | protected DefaultFeatureStore store;
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73 | protected List featureTypes; |
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74 | protected FeatureQuery query;
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75 | protected FeatureSetProvider provider;
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76 | protected long size; |
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77 | protected int iteratorMode; |
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78 | protected List orderedData; |
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79 | protected Feature featureToIgnoreNotification;
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80 | protected DefaultFeatureStoreTransforms transform;
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81 | protected FeatureQuery queryForProvider;
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82 | 44753 | omartinez | protected FeatureType defaultFeatureType;
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83 | 44113 | jjdelcerro | protected FeatureType defatulFeatureTypeForProvider;
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84 | protected boolean ignoreChanges; |
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85 | 45195 | omartinez | private boolean disposed = false; |
86 | 40435 | jjdelcerro | |
87 | public DefaultFeatureSet(DefaultFeatureStore store, FeatureQuery query)
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88 | throws DataException {
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89 | 45195 | omartinez | DisposeUtils.bind(this);
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90 | 40435 | jjdelcerro | this.featureToIgnoreNotification = null; |
91 | this.iteratorMode = NO_CHECKED;
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92 | this.sourceStoreModified = false; |
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93 | this.ownFeaturesModified = false; |
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94 | this.size = -1; |
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95 | this.orderedData = null; |
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96 | this.store = store;
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97 | 45425 | jjdelcerro | DisposeUtils.bind(this.store);
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98 | 40435 | jjdelcerro | if (this.store.isEditing()) { |
99 | this.transform = this.store.getFeatureTypeManager().getTransforms(); |
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100 | } else {
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101 | this.transform =
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102 | (DefaultFeatureStoreTransforms) store.getTransforms(); |
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103 | } |
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104 | this.query = query;
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105 | try {
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106 | this.queryForProvider = (FeatureQuery) query.clone();
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107 | } catch (CloneNotSupportedException e) { |
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108 | throw new FeatureSetInitializeException(e); |
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109 | } |
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110 | |||
111 | this.featureTypes = new ArrayList(); |
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112 | if (this.query.getFeatureTypeId() == null |
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113 | && this.query.getAttributeNames() == null) { |
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114 | 44753 | omartinez | this.defaultFeatureType = this.store.getDefaultFeatureType(); |
115 | 40435 | jjdelcerro | this.featureTypes.addAll(this.store.getFeatureTypes()); |
116 | } else {
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117 | 44753 | omartinez | this.defaultFeatureType = this.store.getFeatureType(this.query); |
118 | List<EditableFeatureAttributeDescriptor> cols = this.query.getExtraColumn().getColumns(); |
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119 | if (this.query!=null && cols!=null && !cols.isEmpty()) { |
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120 | DefaultFeatureType featureTypeExtraCols = (DefaultFeatureType) this.defaultFeatureType.getCopy();
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121 | featureTypeExtraCols.setExtraColumn(this.query.getExtraColumn());
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122 | this.defaultFeatureType = featureTypeExtraCols;
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123 | } |
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124 | this.featureTypes.add(this.defaultFeatureType); |
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125 | 40435 | jjdelcerro | } |
126 | if (this.transform != null && !this.transform.isEmpty()) { |
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127 | this.fixQueryForProvider(this.queryForProvider, this.transform); |
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128 | } else {
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129 | 44753 | omartinez | this.defatulFeatureTypeForProvider = this.defaultFeatureType; |
130 | 40435 | jjdelcerro | } |
131 | |||
132 | FeatureIndexes indexes = store.getIndexes(); |
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133 | if (this.queryForProvider.hasFilter() && indexes != null |
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134 | && indexes.areValid()) { |
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135 | this.provider =
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136 | (FeatureSetProvider) indexes |
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137 | .getFeatureSet(this.queryForProvider.getFilter());
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138 | } |
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139 | if (this.provider == null) { |
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140 | this.provider =
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141 | this.store.getProvider().createSet(this.queryForProvider, |
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142 | 47436 | fdiaz | this.defatulFeatureTypeForProvider, this.defaultFeatureType); |
143 | 40435 | jjdelcerro | } |
144 | this.store.addObserver(this); |
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145 | } |
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146 | |||
147 | private void fixQueryForProvider(FeatureQuery theQueryForProvider, |
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148 | DefaultFeatureStoreTransforms transformsToUse) throws DataException {
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149 | 42975 | jjdelcerro | theQueryForProvider.clearAttributeNames(); |
150 | 40435 | jjdelcerro | FeatureType ftype = |
151 | 44753 | omartinez | transformsToUse.getSourceFeatureTypeFrom(this.defaultFeatureType);
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152 | 40435 | jjdelcerro | theQueryForProvider.setFeatureTypeId(ftype.getId()); |
153 | this.defatulFeatureTypeForProvider = ftype;
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154 | 44854 | omartinez | |
155 | 40435 | jjdelcerro | if (transformsToUse.isTransformsOriginalValues()) {
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156 | 42975 | jjdelcerro | theQueryForProvider.clearFilter(); |
157 | 40435 | jjdelcerro | FeatureQueryOrder fqo = theQueryForProvider.getOrder(); |
158 | if (fqo != null) { |
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159 | fqo.clear(); |
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160 | } |
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161 | return;
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162 | |||
163 | } |
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164 | |||
165 | // Filter
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166 | Evaluator filter = theQueryForProvider.getFilter(); |
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167 | if (filter != null) { |
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168 | 44113 | jjdelcerro | boolean canUseFilter;
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169 | 40435 | jjdelcerro | if (filter.getFieldsInfo() == null) { |
170 | canUseFilter = false;
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171 | } else {
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172 | canUseFilter = areEvaluatorFieldsInAttributes(filter, ftype); |
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173 | } |
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174 | |||
175 | if (!canUseFilter) {
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176 | 42975 | jjdelcerro | theQueryForProvider.clearFilter(); |
177 | 40435 | jjdelcerro | } |
178 | |||
179 | } |
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180 | |||
181 | // Order
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182 | if (theQueryForProvider.hasOrder()) {
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183 | boolean canUseOrder = true; |
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184 | Iterator iter = theQueryForProvider.getOrder().iterator();
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185 | FeatureQueryOrderMember item; |
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186 | while (iter.hasNext()) {
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187 | item = (FeatureQueryOrderMember) iter.next(); |
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188 | if (item.hasEvaluator()) {
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189 | if (!areEvaluatorFieldsInAttributes(item.getEvaluator(),
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190 | ftype)) { |
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191 | canUseOrder = false;
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192 | break;
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193 | } |
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194 | } else {
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195 | if (ftype.get(item.getAttributeName()) == null) { |
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196 | canUseOrder = false;
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197 | break;
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198 | } |
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199 | } |
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200 | } |
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201 | |||
202 | if (!canUseOrder) {
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203 | theQueryForProvider.getOrder().clear(); |
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204 | } |
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205 | } |
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206 | |||
207 | } |
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208 | |||
209 | private boolean areEvaluatorFieldsInAttributes(Evaluator evaluator, |
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210 | FeatureType fType) { |
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211 | if (evaluator.getFieldsInfo() == null) { |
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212 | return false; |
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213 | } |
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214 | String[] fieldNames = evaluator.getFieldsInfo().getFieldNames(); |
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215 | if (fieldNames.length == 0) { |
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216 | return false; |
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217 | } else {
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218 | 44113 | jjdelcerro | for (String fieldName : fieldNames) { |
219 | if (fType.get(fieldName) == null) { |
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220 | 40435 | jjdelcerro | return false; |
221 | } |
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222 | } |
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223 | } |
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224 | return true; |
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225 | } |
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226 | |||
227 | 44854 | omartinez | @Override
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228 | 40435 | jjdelcerro | public FeatureType getDefaultFeatureType() {
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229 | 44753 | omartinez | return this.defaultFeatureType; |
230 | 40435 | jjdelcerro | } |
231 | |||
232 | 44854 | omartinez | @Override
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233 | 40435 | jjdelcerro | public List getFeatureTypes() { |
234 | return Collections.unmodifiableList(this.featureTypes); |
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235 | } |
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236 | |||
237 | 44854 | omartinez | @Override
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238 | 40435 | jjdelcerro | public long getSize() throws DataException { |
239 | this.checkSourceStoreModified();
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240 | if (size < 0) { |
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241 | size = calculateSize(); |
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242 | } |
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243 | return size;
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244 | } |
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245 | |||
246 | private long calculateSize() throws DataException { |
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247 | 46277 | jjdelcerro | boolean hasLimit = this.query.hasLimit(); |
248 | 44202 | jjdelcerro | long limit = this.query.getLimit(); |
249 | 46505 | fdiaz | if(hasLimit && limit == 0){ |
250 | return 0; |
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251 | } |
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252 | 44202 | jjdelcerro | long mySize = 0; |
253 | |||
254 | 40435 | jjdelcerro | int mode = this.getIteratorMode(); |
255 | 45530 | fdiaz | DisposableIterator iter = null;
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256 | 44202 | jjdelcerro | switch (mode) {
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257 | case DEFAULT:
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258 | case ORDERED:
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259 | 40435 | jjdelcerro | if (this.provider.isEmpty()) { |
260 | return 0; |
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261 | } |
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262 | 44202 | jjdelcerro | mySize = provider.getSize(); |
263 | 46277 | jjdelcerro | return (hasLimit && mySize>limit)? limit:mySize;
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264 | 44202 | jjdelcerro | |
265 | case FILTERED:
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266 | case ORDERED_FILTERED:
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267 | 40435 | jjdelcerro | try {
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268 | iter = this.fastIterator();
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269 | 46277 | jjdelcerro | while ((hasLimit && (mySize<limit)) || !hasLimit ) {
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270 | 40435 | jjdelcerro | iter.next(); |
271 | mySize++; |
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272 | } |
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273 | } catch (NoSuchElementException e) { |
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274 | 44202 | jjdelcerro | |
275 | 40435 | jjdelcerro | } finally {
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276 | 44113 | jjdelcerro | DisposeUtils.disposeQuietly(iter); |
277 | 40435 | jjdelcerro | } |
278 | 46277 | jjdelcerro | return (limit>=0 && mySize>limit)? limit:mySize; |
279 | 44202 | jjdelcerro | |
280 | case EDITED:
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281 | case ORDERD_EDITED:
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282 | mySize = provider.getSize() |
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283 | 43983 | jjdelcerro | + store.getFeatureManager().getDeltaSize(); |
284 | 46277 | jjdelcerro | return (hasLimit && mySize>limit)? limit:mySize;
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285 | 44202 | jjdelcerro | |
286 | 45530 | fdiaz | case EDITED_FILTERED:
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287 | case ORDERED_EDITED_FILTER:
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288 | try {
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289 | iter = this.fastIterator();
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290 | 46277 | jjdelcerro | while ((hasLimit && (mySize<limit)) || !hasLimit ) {
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291 | 45530 | fdiaz | iter.next(); |
292 | mySize++; |
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293 | } |
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294 | } catch (NoSuchElementException e) { |
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295 | |||
296 | } finally {
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297 | DisposeUtils.disposeQuietly(iter); |
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298 | } |
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299 | 46277 | jjdelcerro | return (hasLimit && mySize>limit)? limit:mySize;
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300 | 45530 | fdiaz | |
301 | 44202 | jjdelcerro | default:
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302 | throw new IllegalArgumentException(); |
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303 | 43983 | jjdelcerro | } |
304 | 40435 | jjdelcerro | } |
305 | 45195 | omartinez | |
306 | @Override
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307 | public synchronized final void dispose() { |
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308 | // Check if we have already been disposed, and don't do it again
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309 | if (!disposed) {
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310 | if (DisposeUtils.release(this)) { |
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311 | try {
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312 | doDispose(); |
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313 | } catch (Exception ex) { |
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314 | LOG.error("Error performing dispose", ex);
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315 | } finally {
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316 | disposed = true;
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317 | } |
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318 | } |
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319 | } |
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320 | } |
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321 | 40435 | jjdelcerro | |
322 | 45195 | omartinez | public void doDispose() { |
323 | 44669 | jjdelcerro | if( this.store!=null ) { |
324 | this.store.deleteObserver(this); |
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325 | 45425 | jjdelcerro | DisposeUtils.dispose(this.store);
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326 | 44669 | jjdelcerro | this.store = null; |
327 | } |
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328 | if( this.provider!=null ) { |
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329 | this.provider.dispose();
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330 | this.provider = null; |
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331 | } |
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332 | 40435 | jjdelcerro | if (orderedData != null) { |
333 | orderedData.clear(); |
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334 | 44669 | jjdelcerro | this.orderedData = null; |
335 | 40435 | jjdelcerro | } |
336 | 44669 | jjdelcerro | this.featureToIgnoreNotification = null; |
337 | 40435 | jjdelcerro | this.transform = null; |
338 | this.query = null; |
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339 | this.queryForProvider = null; |
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340 | this.featureTypes = null; |
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341 | 44753 | omartinez | this.defaultFeatureType = null; |
342 | 40435 | jjdelcerro | this.defatulFeatureTypeForProvider = null; |
343 | } |
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344 | |||
345 | public void update(Observable obsevable, Object notification) { |
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346 | if (sourceStoreModified) {
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347 | return;
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348 | } |
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349 | |||
350 | String type = ((FeatureStoreNotification) notification).getType();
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351 | |||
352 | if (type.equalsIgnoreCase(FeatureStoreNotification.AFTER_INSERT)
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353 | || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_DELETE) |
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354 | || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_UPDATE)) { |
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355 | if (this.featureToIgnoreNotification == ((FeatureStoreNotification) notification) |
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356 | .getFeature()) { |
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357 | return;
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358 | } |
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359 | sourceStoreModified = true;
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360 | 45425 | jjdelcerro | sourceStoreModifiedCause = new Throwable(); |
361 | 40435 | jjdelcerro | return;
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362 | } |
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363 | if (type.equalsIgnoreCase(FeatureStoreNotification.AFTER_UPDATE_TYPE)
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364 | || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_REDO) |
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365 | || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_UNDO) |
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366 | || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_REFRESH) |
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367 | 45425 | jjdelcerro | || type.equalsIgnoreCase(FeatureStoreNotification.COMPLEX_NOTIFICATION) |
368 | // || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_CLOSE)
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369 | // || type.equalsIgnoreCase(FeatureStoreNotification.AFTER_DISPOSE)
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370 | 40435 | jjdelcerro | || type.equalsIgnoreCase(FeatureStoreNotification.TRANSFORM_CHANGE)) { |
371 | sourceStoreModified = true;
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372 | 45425 | jjdelcerro | sourceStoreModifiedCause = new Throwable(); |
373 | 40435 | jjdelcerro | return;
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374 | } |
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375 | 44097 | omartinez | if (type.equalsIgnoreCase(FeatureStoreNotification.RESOURCE_CHANGED)) {
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376 | if(!this.ignoreChanges) { |
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377 | sourceStoreModified = true;
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378 | 45425 | jjdelcerro | sourceStoreModifiedCause = new Throwable(); |
379 | 44097 | omartinez | return;
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380 | } |
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381 | 40435 | jjdelcerro | } |
382 | 44097 | omartinez | if (type.equalsIgnoreCase(FeatureStoreNotification.AFTER_CANCELEDITING)) {
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383 | if (ownFeaturesModified) {
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384 | sourceStoreModified = true;
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385 | 45425 | jjdelcerro | sourceStoreModifiedCause = new Throwable(); |
386 | 44097 | omartinez | return;
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387 | } |
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388 | } |
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389 | 40435 | jjdelcerro | } |
390 | 43358 | jjdelcerro | |
391 | 40435 | jjdelcerro | protected void checkSourceStoreModified() { |
392 | if (sourceStoreModified) {
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393 | 46485 | fdiaz | LOG.debug("ConcurrentDataModification in featureSet "+this.hashCode()+" of store '"+(store == null ? "": store.getName())+"'"); |
394 | 45425 | jjdelcerro | ConcurrentDataModificationException ex = new ConcurrentDataModificationException(
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395 | store == null ? "": store.getName() |
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396 | ); |
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397 | ex.initCause(sourceStoreModifiedCause); |
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398 | throw ex;
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399 | 40435 | jjdelcerro | } |
400 | } |
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401 | |||
402 | 43358 | jjdelcerro | @Override
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403 | 40435 | jjdelcerro | public DisposableIterator fastIterator(long index) throws DataException { |
404 | 43358 | jjdelcerro | return fastIterator(index, 0); |
405 | } |
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406 | |||
407 | @Override
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408 | public DisposableIterator fastIterator(long index, long elements) throws DataException { |
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409 | 40435 | jjdelcerro | if (index < 0) { |
410 | throw new IndexOutOfBoundsException("The index (" + index |
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411 | + ") is less than 0");
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412 | } |
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413 | 43913 | jjdelcerro | DisposableIterator it; |
414 | 40435 | jjdelcerro | int mode = this.getIteratorMode(); |
415 | |||
416 | switch (mode) {
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417 | case DEFAULT:
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418 | 43913 | jjdelcerro | it = new FastDefaultIterator(this, index, elements); |
419 | break;
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420 | 40435 | jjdelcerro | |
421 | case FILTERED:
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422 | 45989 | fdiaz | it = new FastFilteredIterator(this, index, elements); |
423 | 43913 | jjdelcerro | break;
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424 | 40435 | jjdelcerro | |
425 | case ORDERED:
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426 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canIterateFromIndex()){ |
427 | it = new FastDefaultIterator(this, index, elements); |
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428 | 40435 | jjdelcerro | } else {
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429 | 45989 | fdiaz | if (this.orderedData != null) { |
430 | it = new FastOrderedIterator(this, index); |
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431 | } else {
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432 | it = new FastOrderedIterator(this, new FastDefaultIterator(this, 0, -1), index); |
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433 | } |
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434 | 40435 | jjdelcerro | } |
435 | 43913 | jjdelcerro | break;
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436 | |||
437 | 40435 | jjdelcerro | case ORDERED_FILTERED:
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438 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canFilter() && this.provider.canIterateFromIndex()){ |
439 | it = new FastFilteredIterator(this, index, elements); |
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440 | 40435 | jjdelcerro | } else {
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441 | 45989 | fdiaz | if (this.orderedData != null) { |
442 | it = new FastOrderedIterator(this, index); |
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443 | } else {
|
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444 | it = new FastOrderedIterator(this, new FastFilteredIterator( |
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445 | this, 0, -1), index); |
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446 | } |
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447 | 40435 | jjdelcerro | } |
448 | 45989 | fdiaz | |
449 | 43913 | jjdelcerro | break;
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450 | 40435 | jjdelcerro | |
451 | case EDITED:
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||
452 | 45989 | fdiaz | it = new FastEditedIterator(this, index, elements); |
453 | 43913 | jjdelcerro | break;
|
454 | 40435 | jjdelcerro | |
455 | case EDITED_FILTERED:
|
||
456 | 45989 | fdiaz | it = new FastEditedFilteredIterator(this, index, elements); |
457 | 43913 | jjdelcerro | break;
|
458 | 40435 | jjdelcerro | |
459 | case ORDERD_EDITED:
|
||
460 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canIterateFromIndex() && !this.store.getFeatureManager().hasDeleteds()){ |
461 | it = new FastEditedIterator(this, index, elements); |
||
462 | 40435 | jjdelcerro | } else {
|
463 | 45989 | fdiaz | if (this.orderedData != null) { |
464 | it = new FastOrderedIterator(this, index); |
||
465 | } else {
|
||
466 | it = new FastOrderedIterator(this, new FastEditedIterator( |
||
467 | this, 0, -1), index); |
||
468 | } |
||
469 | 40435 | jjdelcerro | } |
470 | 43913 | jjdelcerro | break;
|
471 | 40435 | jjdelcerro | |
472 | case ORDERED_EDITED_FILTER:
|
||
473 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canFilter() && this.provider.canIterateFromIndex() && !this.store.getFeatureManager().hasDeleteds()){ |
474 | it = new FastEditedFilteredIterator(this, index, elements); |
||
475 | 40435 | jjdelcerro | } else {
|
476 | 45989 | fdiaz | if (this.orderedData != null) { |
477 | it = new FastOrderedIterator(this, index); |
||
478 | } else {
|
||
479 | it = new FastOrderedIterator(this, |
||
480 | new FastEditedFilteredIterator(this, 0, -1), index); |
||
481 | } |
||
482 | 40435 | jjdelcerro | } |
483 | 43913 | jjdelcerro | break;
|
484 | |||
485 | 40435 | jjdelcerro | default:
|
486 | throw new IllegalArgumentException(); |
||
487 | } |
||
488 | 43913 | jjdelcerro | if( this.query!=null && this.query.getLimit()>0 ) { |
489 | it = new LimitIterator(it,this.query.getLimit()); |
||
490 | } |
||
491 | return it;
|
||
492 | 40435 | jjdelcerro | } |
493 | |||
494 | 43913 | jjdelcerro | private class LimitIterator implements DisposableIterator { |
495 | 40435 | jjdelcerro | |
496 | 43913 | jjdelcerro | private final DisposableIterator it; |
497 | private final long limit; |
||
498 | private int count; |
||
499 | |||
500 | private LimitIterator(DisposableIterator it, long limit) { |
||
501 | this.it = it;
|
||
502 | this.limit = limit;
|
||
503 | this.count = 0; |
||
504 | } |
||
505 | |||
506 | @Override
|
||
507 | public void dispose() { |
||
508 | this.it.dispose();
|
||
509 | } |
||
510 | |||
511 | @Override
|
||
512 | public boolean hasNext() { |
||
513 | if( this.count>=this.limit ) { |
||
514 | return false; |
||
515 | } |
||
516 | return this.it.hasNext(); |
||
517 | } |
||
518 | |||
519 | @Override
|
||
520 | public Object next() { |
||
521 | if( this.count>=this.limit ) { |
||
522 | return null; |
||
523 | } |
||
524 | this.count++;
|
||
525 | return this.it.next(); |
||
526 | } |
||
527 | |||
528 | @Override
|
||
529 | public void remove() { |
||
530 | throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. |
||
531 | } |
||
532 | |||
533 | } |
||
534 | |||
535 | 43358 | jjdelcerro | @Override
|
536 | 40435 | jjdelcerro | public DisposableIterator iterator(long index) throws DataException { |
537 | 43358 | jjdelcerro | return iterator(index,0); |
538 | } |
||
539 | |||
540 | @Override
|
||
541 | public DisposableIterator iterator(long index, long elements) throws DataException { |
||
542 | 40435 | jjdelcerro | if (index < 0) { |
543 | throw new IndexOutOfBoundsException("The index (" + index |
||
544 | + ") is less than 0");
|
||
545 | } |
||
546 | 43913 | jjdelcerro | DisposableIterator it; |
547 | 40435 | jjdelcerro | int mode = this.getIteratorMode(); |
548 | |||
549 | switch (mode) {
|
||
550 | case DEFAULT:
|
||
551 | 43913 | jjdelcerro | it = new DefaultIterator(this, index, elements); |
552 | break;
|
||
553 | 40435 | jjdelcerro | |
554 | case FILTERED:
|
||
555 | 45989 | fdiaz | it = new FilteredIterator(this, index, elements); |
556 | 43913 | jjdelcerro | break;
|
557 | 40435 | jjdelcerro | |
558 | case ORDERED:
|
||
559 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canIterateFromIndex()){ |
560 | it = new DefaultIterator(this, index, elements); |
||
561 | } else {
|
||
562 | if (orderedData != null) { |
||
563 | it = new OrderedIterator(this, index); |
||
564 | 40435 | jjdelcerro | |
565 | 45989 | fdiaz | } else {
|
566 | it = new OrderedIterator(this, new DefaultIterator(this, 0, elements),index); |
||
567 | } |
||
568 | 40435 | jjdelcerro | } |
569 | 43913 | jjdelcerro | break;
|
570 | 40435 | jjdelcerro | |
571 | case ORDERED_FILTERED:
|
||
572 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canFilter() && this.provider.canIterateFromIndex()){ |
573 | it = new FilteredIterator(this, index, elements); |
||
574 | } else {
|
||
575 | if (orderedData != null) { |
||
576 | it = new OrderedIterator(this, index); |
||
577 | } else {
|
||
578 | it = new OrderedIterator(this, new FilteredIterator(this, 0, -1),index); |
||
579 | } |
||
580 | } |
||
581 | 43913 | jjdelcerro | break;
|
582 | 40435 | jjdelcerro | |
583 | case EDITED:
|
||
584 | 45989 | fdiaz | it = new EditedIterator(this, index, elements); |
585 | 43913 | jjdelcerro | break;
|
586 | 40435 | jjdelcerro | |
587 | case EDITED_FILTERED:
|
||
588 | 45989 | fdiaz | it = new EditedFilteredIterator(this, index, elements); |
589 | 43913 | jjdelcerro | break;
|
590 | 40435 | jjdelcerro | |
591 | case ORDERD_EDITED:
|
||
592 | 45989 | fdiaz | if(this.provider.canOrder() && this.provider.canIterateFromIndex() && !this.store.getFeatureManager().hasDeleteds()){ |
593 | it = new EditedIterator(this, index, elements); |
||
594 | } else {
|
||
595 | if (orderedData != null) { |
||
596 | it = new OrderedIterator(this, index); |
||
597 | } else {
|
||
598 | it = new OrderedIterator(this, |
||
599 | new EditedIterator(this, 0, -1), index); |
||
600 | } |
||
601 | } |
||
602 | 43913 | jjdelcerro | break;
|
603 | 40435 | jjdelcerro | |
604 | case ORDERED_EDITED_FILTER:
|
||
605 | 45989 | fdiaz | if(this.provider.canOrder() && this.providerCanFilter() && this.provider.canIterateFromIndex() && !this.store.getFeatureManager().hasDeleteds()){ |
606 | it = new EditedFilteredIterator(this, index, elements); |
||
607 | } else {
|
||
608 | if (orderedData != null) { |
||
609 | it = new OrderedIterator(this, index); |
||
610 | } else {
|
||
611 | it = new OrderedIterator(this, |
||
612 | new EditedFilteredIterator(this, 0, -1), index); |
||
613 | } |
||
614 | } |
||
615 | 43913 | jjdelcerro | break;
|
616 | 40435 | jjdelcerro | |
617 | default:
|
||
618 | throw new IllegalArgumentException(); |
||
619 | } |
||
620 | |||
621 | 43913 | jjdelcerro | if( this.query!=null && this.query.getLimit()>0 ) { |
622 | it = new LimitIterator(it,this.query.getLimit()); |
||
623 | } |
||
624 | return it;
|
||
625 | 40435 | jjdelcerro | } |
626 | |||
627 | private boolean providerCanOrder() { |
||
628 | return this.provider.canOrder(); |
||
629 | } |
||
630 | |||
631 | private boolean providerCanFilter() { |
||
632 | return this.provider.canFilter(); |
||
633 | } |
||
634 | |||
635 | private int getIteratorMode() { |
||
636 | |||
637 | if (this.iteratorMode != NO_CHECKED) { |
||
638 | return this.iteratorMode; |
||
639 | } |
||
640 | |||
641 | // TODO Tener en cuenta las transformaciones ???
|
||
642 | |||
643 | 43981 | omartinez | if (store.isEditing() && (store.getFeatureTypeManager().hasChanges() || store.getFeatureManager().hasChanges())) {
|
644 | 40435 | jjdelcerro | if (this.query.hasOrder()) { // En edicion siempre ordeno yo. |
645 | if (this.query.hasFilter()) { |
||
646 | return ORDERED_EDITED_FILTER;
|
||
647 | } else {
|
||
648 | return ORDERD_EDITED;
|
||
649 | } |
||
650 | } else {
|
||
651 | if (this.query.hasFilter()) { |
||
652 | return EDITED_FILTERED;
|
||
653 | } else {
|
||
654 | return EDITED;
|
||
655 | } |
||
656 | } |
||
657 | } else {
|
||
658 | boolean useMyFilter = this.query.hasFilter(); |
||
659 | boolean useMyOrder = this.query.hasOrder(); |
||
660 | if (this.providerCanOrder() && this.transform.isEmpty()) { |
||
661 | useMyOrder = false;
|
||
662 | } |
||
663 | if (this.providerCanFilter() && this.transform.isEmpty()) { |
||
664 | useMyFilter = false;
|
||
665 | } |
||
666 | |||
667 | if (useMyOrder) {
|
||
668 | if (useMyFilter) {
|
||
669 | 44191 | jjdelcerro | return ORDERED_FILTERED;
|
670 | 40435 | jjdelcerro | } else {
|
671 | 44191 | jjdelcerro | return ORDERED;
|
672 | 40435 | jjdelcerro | } |
673 | } else {
|
||
674 | if (useMyFilter) {
|
||
675 | 44191 | jjdelcerro | return FILTERED;
|
676 | 40435 | jjdelcerro | } else {
|
677 | 44191 | jjdelcerro | return DEFAULT;
|
678 | 40435 | jjdelcerro | } |
679 | } |
||
680 | } |
||
681 | |||
682 | } |
||
683 | |||
684 | 44854 | omartinez | @Override
|
685 | 40435 | jjdelcerro | public void delete(Feature feature) throws DataException { |
686 | this.featureToIgnoreNotification = feature;
|
||
687 | this.store.delete(feature);
|
||
688 | if (this.size > 0) { |
||
689 | this.size--;
|
||
690 | } |
||
691 | this.featureToIgnoreNotification = null; |
||
692 | this.ownFeaturesModified = true; |
||
693 | } |
||
694 | |||
695 | 44854 | omartinez | @Override
|
696 | 40435 | jjdelcerro | public void insert(EditableFeature feature) throws DataException { |
697 | this.featureToIgnoreNotification = feature;
|
||
698 | this.store.insert(feature);
|
||
699 | if (this.size >= 0) { |
||
700 | this.size++;
|
||
701 | } |
||
702 | this.featureToIgnoreNotification = null; |
||
703 | this.ownFeaturesModified = true; |
||
704 | } |
||
705 | |||
706 | 44854 | omartinez | @Override
|
707 | 40435 | jjdelcerro | public void update(EditableFeature feature) throws DataException { |
708 | this.featureToIgnoreNotification = feature;
|
||
709 | this.store.update(feature);
|
||
710 | this.featureToIgnoreNotification = null; |
||
711 | this.ownFeaturesModified = true; |
||
712 | } |
||
713 | 44097 | omartinez | |
714 | 44854 | omartinez | @Override
|
715 | 44097 | omartinez | public void commitChanges() throws DataException { |
716 | this.ignoreChanges = true; |
||
717 | this.store.commitChanges();
|
||
718 | this.ignoreChanges = false; |
||
719 | |||
720 | } |
||
721 | 40435 | jjdelcerro | |
722 | 44854 | omartinez | @Override
|
723 | 40435 | jjdelcerro | public FeatureStore getFeatureStore() {
|
724 | return store;
|
||
725 | } |
||
726 | 43358 | jjdelcerro | |
727 | 40435 | jjdelcerro | } |