com.vividsolutions.jump.feature

Class IndexedFeatureCollection

java.lang.Object

com.vividsolutions.jump.feature.FeatureCollectionWrapper

com.vividsolutions.jump.feature.IndexedFeatureCollection

All Implemented Interfaces:

FeatureCollection

public class IndexedFeatureCollection
extends FeatureCollectionWrapper

An IndexedFeatureCollection creates a new collection which is backed by a FeatureCollection, but which is indexed for query purposes. In this implementation, Features cannot be added or removed (an Exception is thrown) and Features' Geometries should not be modified (otherwise they will be out of sync with the spatial index).

Constructor Summary

Constructors

Constructor and Description
IndexedFeatureCollection(FeatureCollection fc) Constructs an IndexedFeatureCollection wrapping the given FeatureCollection and using the default spatial index.
IndexedFeatureCollection(FeatureCollection fc, com.vividsolutions.jts.index.SpatialIndex spatialIndex) Constructs an IndexedFeatureCollection wrapping the given FeatureCollection and using the given empty spatial index.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Feature feature) Adds a feature to this collection.
void	addAll(Collection features) Adds multiple features to this collection.
List	query(com.vividsolutions.jts.geom.Envelope env) A quick search for features, using an envelope comparison.
Collection	remove(com.vividsolutions.jts.geom.Envelope env) Removes the features which intersect the given envelope
void	remove(Feature feature) Removes a feature from this collection.
void	removeAll(Collection features) Removes multiple features from this collection.

Methods inherited from class com.vividsolutions.jump.feature.FeatureCollectionWrapper

checkNotWrappingSameClass, clear, getEnvelope, getFeatures, getFeatureSchema, getUltimateWrappee, getWrappee, hasWrapper, isEmpty, iterator, size

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexedFeatureCollection

public IndexedFeatureCollection(FeatureCollection fc)

Constructs an IndexedFeatureCollection wrapping the given FeatureCollection and using the default spatial index.

IndexedFeatureCollection

public IndexedFeatureCollection(FeatureCollection fc,
                        com.vividsolutions.jts.index.SpatialIndex spatialIndex)

Constructs an IndexedFeatureCollection wrapping the given FeatureCollection and using the given empty spatial index.

Method Detail

add

public void add(Feature feature)

Description copied from interface: FeatureCollection

Adds a feature to this collection.

Specified by:

add in interface FeatureCollection

Overrides:

add in class FeatureCollectionWrapper

Parameters:

feature - a Feature to add to the end of this collection

remove

public void remove(Feature feature)

Description copied from interface: FeatureCollection

Removes a feature from this collection.

Specified by:

remove in interface FeatureCollection

Overrides:

remove in class FeatureCollectionWrapper

Parameters:

feature - a Feature to remove from this collection

query

public List query(com.vividsolutions.jts.geom.Envelope env)

Description copied from interface: FeatureCollection

A quick search for features, using an envelope comparison.

Specified by:

query in interface FeatureCollection

Overrides:

query in class FeatureCollectionWrapper

Parameters:

env - the envelope to query against

Returns:

features whose envelopes intersect the given envelope

addAll

public void addAll(Collection features)

Description copied from interface: FeatureCollection

Adds multiple features to this collection. To be preferred over #add for adding multiple features, because in some systems (like the JUMP Workbench) fewer events will be fired.

Specified by:

addAll in interface FeatureCollection

Overrides:

addAll in class FeatureCollectionWrapper

remove

public Collection remove(com.vividsolutions.jts.geom.Envelope env)

Description copied from interface: FeatureCollection

Removes the features which intersect the given envelope

Specified by:

remove in interface FeatureCollection

Overrides:

remove in class FeatureCollectionWrapper

Returns:

the removed features

removeAll

public void removeAll(Collection features)

Description copied from interface: FeatureCollection

Removes multiple features from this collection. To be preferred over #remove for removing multiple features, because in some systems (like the JUMP Workbench) fewer events will be fired.

Specified by:

removeAll in interface FeatureCollection

Overrides:

removeAll in class FeatureCollectionWrapper