org.gvsig.fmap.dal.feature.impl.indexes.geometry

Class GeometryIndexProvider

java.lang.Object

org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider

org.gvsig.fmap.dal.feature.impl.indexes.geometry.GeometryIndexProvider

All Implemented Interfaces:

DataFactoryUnit, FeatureIndexProvider

public class GeometryIndexProvider
extends AbstractFeatureIndexProvider

Nested Class Summary

Nested classes/interfaces inherited from class org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider

AbstractFeatureIndexProvider.LongList

Constructor Summary

Constructors

Constructor and Description
GeometryIndexProvider()

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all indexed data.
void	delete(java.lang.Object value, FeatureReferenceProviderServices fref) Deletes a value from the index, given its reference
protected Envelope	getEnvelope(java.lang.Object value)
void	initialize() Initializes this provider
void	insert(java.lang.Object value, FeatureReferenceProviderServices fref) Inserts a value into the index
boolean	isMatchSupported() Returns true if the provider supports the match function
boolean	isNearestSupported() Returns true if the provider supports the nearest function
boolean	isNearestToleranceSupported() Returns true if the provider supports the nearest with tolerance function
boolean	isRangeSupported() Returns true if the provider supports the range function
java.util.List	match(java.lang.Object value) Performs a search in the index and returns a list with all the values that match the given value
java.util.List	nearest(int count, java.lang.Object value) Performs a search in the index and returns the list of up to n values which are nearest to the given value.
java.util.List	nearest(int count, java.lang.Object value, java.lang.Object tolerance) Performs a search in the index and returns the list of up to n values which are nearest to the given value and within the distance specified by tolerance.
java.util.List	range(java.lang.Object value1, java.lang.Object value2) Performs a search in the index and returns a list with the values that intersect with the given interval

Methods inherited from class org.gvsig.fmap.dal.feature.spi.index.AbstractFeatureIndexProvider

allowNulls, getFeatureIndexProviderServices, setFeatureIndexProviderServices

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GeometryIndexProvider

public GeometryIndexProvider()

Method Detail

initialize

public void initialize()

Description copied from interface: FeatureIndexProvider

Initializes this provider

Specified by:

initialize in interface FeatureIndexProvider

Overrides:

initialize in class AbstractFeatureIndexProvider

getEnvelope

protected Envelope getEnvelope(java.lang.Object value)

insert

public void insert(java.lang.Object value,
                   FeatureReferenceProviderServices fref)

Description copied from interface: FeatureIndexProvider

Inserts a value into the index

delete

public void delete(java.lang.Object value,
                   FeatureReferenceProviderServices fref)

Description copied from interface: FeatureIndexProvider

Deletes a value from the index, given its reference

match

public java.util.List match(java.lang.Object value)
                     throws FeatureIndexException

Description copied from interface: FeatureIndexProvider

Performs a search in the index and returns a list with all the values that match the given value

Throws:

FeatureIndexException - TODO

nearest

public java.util.List nearest(int count,
                              java.lang.Object value)

Description copied from interface: FeatureIndexProvider

Performs a search in the index and returns the list of up to n values which are nearest to the given value.

isMatchSupported

public boolean isMatchSupported()

Description copied from interface: FeatureIndexProvider

Returns true if the provider supports the match function

isNearestSupported

public boolean isNearestSupported()

Description copied from interface: FeatureIndexProvider

Returns true if the provider supports the nearest function

isNearestToleranceSupported

public boolean isNearestToleranceSupported()

Description copied from interface: FeatureIndexProvider

Returns true if the provider supports the nearest with tolerance function

isRangeSupported

public boolean isRangeSupported()

Description copied from interface: FeatureIndexProvider

Returns true if the provider supports the range function

nearest

public java.util.List nearest(int count,
                              java.lang.Object value,
                              java.lang.Object tolerance)
                       throws FeatureIndexException

Description copied from interface: FeatureIndexProvider

Performs a search in the index and returns the list of up to n values which are nearest to the given value and within the distance specified by tolerance.

Throws:

FeatureIndexException

range

public java.util.List range(java.lang.Object value1,
                            java.lang.Object value2)
                     throws FeatureIndexException

Description copied from interface: FeatureIndexProvider

Performs a search in the index and returns a list with the values that intersect with the given interval

Throws:

FeatureIndexException - TODO

clear

public void clear()
           throws DataException

Description copied from interface: FeatureIndexProvider

Removes all indexed data.

Throws:

DataException - if there is an error clearing the index