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 @ 40435
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| 1 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature.impl; |
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| 2 | |||
| 3 | import java.util.List; |
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| 4 | |||
| 5 | import org.gvsig.fmap.dal.exception.DataException; |
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| 6 | import org.gvsig.fmap.dal.feature.exception.FeatureIndexException; |
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| 7 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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| 8 | import org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider; |
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| 9 | import org.gvsig.fmap.geom.Geometry; |
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| 10 | import org.gvsig.fmap.geom.GeometryLocator; |
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| 11 | import org.gvsig.fmap.geom.SpatialIndex; |
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| 12 | import org.gvsig.fmap.geom.primitive.Envelope; |
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| 13 | import org.gvsig.fmap.geom.primitive.NullGeometry; |
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| 14 | |||
| 15 | public class MemorySpatialIndexProvider extends AbstractFeatureIndexProvider { |
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| 16 | |||
| 17 | public static final String NAME = "MemorySpatialIndexProvider"; |
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| 18 | |||
| 19 | private SpatialIndex index = null; |
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| 20 | |||
| 21 | public MemorySpatialIndexProvider() {
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| 22 | |||
| 23 | } |
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| 24 | |||
| 25 | public void initialize() { |
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| 26 | try {
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| 27 | this.index = GeometryLocator.getGeometryManager().createDefaultMemorySpatialIndex();
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| 28 | } catch (Exception e) { |
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| 29 | throw new RuntimeException(); |
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| 30 | } |
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| 31 | } |
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| 32 | |||
| 33 | public void delete(Object o, FeatureReferenceProviderServices fref) { |
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| 34 | Geometry geom = (Geometry) o; |
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| 35 | this.index.remove(geom, fref.getOID());
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| 36 | } |
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| 37 | |||
| 38 | public void insert(Object o, FeatureReferenceProviderServices fref) { |
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| 39 | if (o == null || o instanceof NullGeometry) { |
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| 40 | return;
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| 41 | } |
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| 42 | Geometry geom = (Geometry) o; |
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| 43 | this.index.insert(geom, fref.getOID());
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| 44 | |||
| 45 | } |
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| 46 | |||
| 47 | public List match(Object value) throws FeatureIndexException { |
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| 48 | Envelope env = null;
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| 49 | if (value instanceof Envelope) { |
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| 50 | env = (Envelope) value; |
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| 51 | } else {
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| 52 | if (value instanceof Geometry) { |
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| 53 | env = ((Geometry) value).getEnvelope(); |
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| 54 | } |
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| 55 | } |
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| 56 | return new LongList(this.index.queryAsList(env)); |
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| 57 | |||
| 58 | } |
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| 59 | |||
| 60 | public List match(Object min, Object max) { |
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| 61 | throw new UnsupportedOperationException( |
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| 62 | "Can't perform this kind of search.");
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| 63 | } |
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| 64 | |||
| 65 | public List nearest(int count, Object value) throws FeatureIndexException { |
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| 66 | throw new UnsupportedOperationException( |
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| 67 | "Can't perform this kind of search.");
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| 68 | } |
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| 69 | |||
| 70 | public boolean isMatchSupported() { |
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| 71 | return true; |
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| 72 | } |
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| 73 | |||
| 74 | public boolean isNearestSupported() { |
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| 75 | return false; |
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| 76 | } |
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| 77 | |||
| 78 | public boolean isNearestToleranceSupported() { |
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| 79 | return false; |
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| 80 | } |
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| 81 | |||
| 82 | public boolean isRangeSupported() { |
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| 83 | return false; |
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| 84 | } |
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| 85 | |||
| 86 | public List nearest(int count, Object value, Object tolerance) |
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| 87 | throws FeatureIndexException {
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| 88 | throw new UnsupportedOperationException(); |
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| 89 | } |
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| 90 | |||
| 91 | public List range(Object value1, Object value2) |
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| 92 | throws FeatureIndexException {
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| 93 | throw new UnsupportedOperationException(); |
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| 94 | } |
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| 95 | |||
| 96 | public void clear() throws DataException { |
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| 97 | this.index.removeAll();
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| 98 | } |
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| 99 | } |