svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / MemorySpatialIndexProvider.java @ 40404
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package org.gvsig.fmap.dal.feature.impl; |
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import java.util.List; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.exception.FeatureIndexException; |
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import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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import org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.SpatialIndex; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.NullGeometry; |
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public class MemorySpatialIndexProvider extends AbstractFeatureIndexProvider { |
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public static final String NAME = "MemorySpatialIndexProvider"; |
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private SpatialIndex index = null; |
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public MemorySpatialIndexProvider() {
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} |
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public void initialize() { |
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try {
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this.index = GeometryLocator.getGeometryManager().createDefaultMemorySpatialIndex();
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} catch (Exception e) { |
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throw new RuntimeException(); |
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} |
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} |
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public void delete(Object o, FeatureReferenceProviderServices fref) { |
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Geometry geom = (Geometry) o; |
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this.index.remove(geom, fref.getOID());
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} |
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public void insert(Object o, FeatureReferenceProviderServices fref) { |
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if (o == null || o instanceof NullGeometry) { |
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return;
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} |
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Geometry geom = (Geometry) o; |
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this.index.insert(geom, fref.getOID());
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} |
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public List match(Object value) throws FeatureIndexException { |
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Envelope env = null;
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if (value instanceof Envelope) { |
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env = (Envelope) value; |
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} else {
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if (value instanceof Geometry) { |
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env = ((Geometry) value).getEnvelope(); |
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} |
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} |
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return new LongList(this.index.queryAsList(env)); |
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} |
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public List match(Object min, Object max) { |
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throw new UnsupportedOperationException( |
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"Can't perform this kind of search.");
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} |
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public List nearest(int count, Object value) throws FeatureIndexException { |
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throw new UnsupportedOperationException( |
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"Can't perform this kind of search.");
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} |
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public boolean isMatchSupported() { |
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return true; |
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} |
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public boolean isNearestSupported() { |
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return false; |
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} |
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public boolean isNearestToleranceSupported() { |
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return false; |
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} |
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public boolean isRangeSupported() { |
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return false; |
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} |
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public List nearest(int count, Object value, Object tolerance) |
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throws FeatureIndexException {
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throw new UnsupportedOperationException(); |
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} |
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public List range(Object value1, Object value2) |
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throws FeatureIndexException {
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throw new UnsupportedOperationException(); |
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} |
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public void clear() throws DataException { |
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this.index.removeAll();
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} |
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} |