com.vividsolutions.jump.feature
Interface FeatureCollection

All Known Implementing Classes:

DynamicFeatureCollection, FeatureCollectionWrapper, FeatureDataset, ThreadSafeFeatureCollectionWrapper

public interface FeatureCollection

A collection of Features, with a special method for querying the Features that lie within a given Envelope.

Method Summary

void	add(Feature feature) Adds a feature to this collection.
void	addAll(java.util.Collection features) Adds multiple features to this collection.
void	clear() Removes all features from this collection.
com.vividsolutions.jts.geom.Envelope	getEnvelope() Returns the bounds of this collection.
java.util.List	getFeatures() Returns an unmodifiable List of the features in this collection
FeatureSchema	getFeatureSchema() Returns information about this FeatureCollection
boolean	isEmpty() Returns whether this collection has no features.
java.util.Iterator	iterator() Returns an Iterator over the features
java.util.List	query(com.vividsolutions.jts.geom.Envelope envelope) A quick search for features, using an envelope comparison.
java.util.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(java.util.Collection features) Removes multiple features from this collection.
int	size() Returns the number of features in this collection.

Method Detail

getFeatureSchema

public FeatureSchema getFeatureSchema()

Returns information about this FeatureCollection

Returns:

the types of the attributes of the features in this collection

getEnvelope

public com.vividsolutions.jts.geom.Envelope getEnvelope()

Returns the bounds of this collection.

Returns:

the smallest Envelope enclosing all the Features in this collection

size

public int size()

Returns the number of features in this collection.

Returns:

the number of features in this collection

isEmpty

public boolean isEmpty()

Returns whether this collection has no features.

Returns:

whether or not the size of this collection is 0

getFeatures

public java.util.List getFeatures()

Returns an unmodifiable List of the features in this collection

Returns:

a read-only view of all the features

iterator

public java.util.Iterator iterator()

Returns an Iterator over the features

Returns:

an Iterator over the features

query

public java.util.List query(com.vividsolutions.jts.geom.Envelope envelope)

A quick search for features, using an envelope comparison.

Parameters:

envelope - the envelope to query against

Returns:

features whose envelopes intersect the given envelope

add

public void add(Feature feature)

Adds a feature to this collection.

Parameters:

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

addAll

public void addAll(java.util.Collection features)

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.

removeAll

public void removeAll(java.util.Collection features)

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.

remove

public void remove(Feature feature)

Removes a feature from this collection.

Parameters:

feature - a Feature to remove from this collection

clear

public void clear()

Removes all features from this collection.

remove

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

Removes the features which intersect the given envelope

Returns:

the removed features