org.geotools.data.store

Class EmptyFeatureCollection

Object

DataFeatureCollection

EmptyFeatureCollection

All Implemented Interfaces:

SimpleFeatureCollection, FeatureCollection<SimpleFeatureType,SimpleFeature>

public class EmptyFeatureCollection
extends DataFeatureCollection

Field Summary

Fields inherited from class DataFeatureCollection

id, listeners, schema

Constructor Summary

Constructors

Constructor and Description
EmptyFeatureCollection(SimpleFeatureType schema)

Method Summary

Modifier and Type	Method and Description
boolean	add(SimpleFeature object)
protected void	closeIterator(Iterator close)
ReferencedEnvelope	getBounds() Get the total bounds of this collection which is calculated by doing a union of the bounds of each feature inside of it
int	getCount()
boolean	isValid()
protected Iterator	openIterator() Returns a FeatureWriterIterator, or FeatureReaderIterator over content.
boolean	remove(Object object)
boolean	removeAll(Collection collection)

Methods inherited from class DataFeatureCollection

accepts, addAll, addAll, addListener, clear, close, close, contains, containsAll, features, fireChange, fireChange, fireChange, getID, getSchema, isEmpty, iterator, purge, reader, removeListener, retainAll, size, sort, subCollection, toArray, toArray, writer

Methods inherited from class Object

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

Constructor Detail

EmptyFeatureCollection

public EmptyFeatureCollection(SimpleFeatureType schema)

Method Detail

getBounds

public ReferencedEnvelope getBounds()

Description copied from interface: FeatureCollection

Get the total bounds of this collection which is calculated by doing a union of the bounds of each feature inside of it

Specified by:

getBounds in interface FeatureCollection<SimpleFeatureType,SimpleFeature>

Specified by:

getBounds in class DataFeatureCollection

Returns:

An Envelope containing the total bounds of this collection.

getCount

public int getCount()
             throws IOException

Specified by:

getCount in class DataFeatureCollection

Throws:

IOException

openIterator

protected Iterator openIterator()

Description copied from class: DataFeatureCollection

Returns a FeatureWriterIterator, or FeatureReaderIterator over content.

If you have a way to tell that you are readonly please subclass with a less hardcore check - this implementations catches a UnsupportedOpperationsException from wrtier()!

Overrides:

openIterator in class DataFeatureCollection

Returns:

Iterator, should be closed closeIterator

closeIterator

protected void closeIterator(Iterator close)

Overrides:

closeIterator in class DataFeatureCollection

add

public boolean add(SimpleFeature object)

Overrides:

add in class DataFeatureCollection

remove

public boolean remove(Object object)

Overrides:

remove in class DataFeatureCollection

removeAll

public boolean removeAll(Collection collection)

Overrides:

removeAll in class DataFeatureCollection

isValid

public boolean isValid()