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 / MemorySpatialIndexProvider.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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 | * 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 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature.impl; |
25 | |||
26 | import java.util.List; |
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27 | |||
28 | import org.gvsig.fmap.dal.exception.DataException; |
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29 | import org.gvsig.fmap.dal.feature.exception.FeatureIndexException; |
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30 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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31 | import org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider; |
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32 | import org.gvsig.fmap.geom.Geometry; |
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33 | import org.gvsig.fmap.geom.GeometryLocator; |
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34 | import org.gvsig.fmap.geom.SpatialIndex; |
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35 | import org.gvsig.fmap.geom.primitive.Envelope; |
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36 | import org.gvsig.fmap.geom.primitive.NullGeometry; |
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37 | |||
38 | public class MemorySpatialIndexProvider extends AbstractFeatureIndexProvider { |
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39 | |||
40 | public static final String NAME = "MemorySpatialIndexProvider"; |
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41 | |||
42 | private SpatialIndex index = null; |
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43 | |||
44 | public MemorySpatialIndexProvider() {
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45 | |||
46 | } |
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47 | |||
48 | public void initialize() { |
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49 | try {
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50 | this.index = GeometryLocator.getGeometryManager().createDefaultMemorySpatialIndex();
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51 | } catch (Exception e) { |
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52 | throw new RuntimeException(); |
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53 | } |
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54 | } |
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55 | |||
56 | public void delete(Object o, FeatureReferenceProviderServices fref) { |
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57 | Geometry geom = (Geometry) o; |
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58 | this.index.remove(geom, fref.getOID());
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59 | } |
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60 | |||
61 | public void insert(Object o, FeatureReferenceProviderServices fref) { |
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62 | if (o == null || o instanceof NullGeometry) { |
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63 | return;
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64 | } |
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65 | Geometry geom = (Geometry) o; |
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66 | this.index.insert(geom, fref.getOID());
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67 | |||
68 | } |
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69 | |||
70 | public List match(Object value) throws FeatureIndexException { |
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71 | Envelope env = null;
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72 | if (value instanceof Envelope) { |
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73 | env = (Envelope) value; |
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74 | } else {
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75 | if (value instanceof Geometry) { |
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76 | env = ((Geometry) value).getEnvelope(); |
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77 | } |
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78 | } |
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79 | return new LongList(this.index.queryAsList(env)); |
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80 | |||
81 | } |
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82 | |||
83 | public List match(Object min, Object max) { |
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84 | throw new UnsupportedOperationException( |
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85 | "Can't perform this kind of search.");
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86 | } |
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87 | |||
88 | public List nearest(int count, Object value) throws FeatureIndexException { |
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89 | throw new UnsupportedOperationException( |
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90 | "Can't perform this kind of search.");
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91 | } |
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92 | |||
93 | public boolean isMatchSupported() { |
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94 | return true; |
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95 | } |
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96 | |||
97 | public boolean isNearestSupported() { |
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98 | return false; |
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99 | } |
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100 | |||
101 | public boolean isNearestToleranceSupported() { |
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102 | return false; |
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103 | } |
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104 | |||
105 | public boolean isRangeSupported() { |
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106 | return false; |
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107 | } |
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108 | |||
109 | public List nearest(int count, Object value, Object tolerance) |
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110 | throws FeatureIndexException {
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111 | throw new UnsupportedOperationException(); |
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112 | } |
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113 | |||
114 | public List range(Object value1, Object value2) |
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115 | throws FeatureIndexException {
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116 | throw new UnsupportedOperationException(); |
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117 | } |
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118 | |||
119 | public void clear() throws DataException { |
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120 | this.index.removeAll();
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121 | } |
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122 | } |