org.geotools.feature.collection

Class SubFeatureList

Object

BaseFeatureCollection<SimpleFeatureType,SimpleFeature>

BaseSimpleFeatureCollection

SubFeatureCollection

SubFeatureList

All Implemented Interfaces:

SimpleFeatureCollection, RandomFeatureAccess, FeatureCollection<SimpleFeatureType,SimpleFeature>

public class SubFeatureList
extends SubFeatureCollection
implements RandomFeatureAccess

Default implementation of FeatureCollection.sort(SortBy).

This implementation is not suitable for working with large content as it makes use of memory both when eastablishing an initial sort order, and subsequently to hold a list of FeatureId.

Field Summary

Fields inherited from class SubFeatureCollection

collection, ff, filter

Fields inherited from class BaseFeatureCollection

id, schema

Constructor Summary

Constructors

Constructor and Description
SubFeatureList(SimpleFeatureCollection list, Filter filter)
SubFeatureList(SimpleFeatureCollection list, Filter filter, SortBy subSort) Create a simple SubFeatureList with the provided filter.
SubFeatureList(SimpleFeatureCollection list, List order)
SubFeatureList(SimpleFeatureCollection list, SortBy sort)

Method Summary

Modifier and Type	Method and Description
protected Filter	createFilter() Lazy create a filter based on index
protected List<FeatureId>	createIndex() Put this SubFeatureList in touch with its inner index
SimpleFeature	get(int position) item at the specified index.
SimpleFeature	getFeatureMember(String id) Access Feature content by feature id.
int	indexOf(SimpleFeature feature)
int	lastIndexOf(SimpleFeature feature)
Iterator<SimpleFeature>	openIterator() Returns a quick iterator that uses get and size methods.
SimpleFeature	removeFeatureMember(String id) Optional Method
SimpleFeatureCollection	subList(Filter subfilter) Sublist of this sublist!

Methods inherited from class SubFeatureCollection

features, filter, getBounds, getID, size, sort, subCollection

Methods inherited from class BaseFeatureCollection

accepts, contains, containsAll, getSchema, isEmpty, toArray, toArray

Methods inherited from class Object

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

Methods inherited from interface SimpleFeatureCollection

features, sort, subCollection

Methods inherited from interface FeatureCollection

accepts, contains, containsAll, getBounds, getID, getSchema, isEmpty, size, toArray, toArray

Constructor Detail

SubFeatureList

public SubFeatureList(SimpleFeatureCollection list,
                      Filter filter)

SubFeatureList

public SubFeatureList(SimpleFeatureCollection list,
                      SortBy sort)

SubFeatureList

public SubFeatureList(SimpleFeatureCollection list,
                      Filter filter,
                      SortBy subSort)

Create a simple SubFeatureList with the provided filter.

Parameters:

filter -

SubFeatureList

public SubFeatureList(SimpleFeatureCollection list,
                      List order)

Method Detail

get

public SimpleFeature get(int position)

item at the specified index.

Parameters:

index - index of item

Returns:

the item at the specified index.

Throws:

IndexOutOfBoundsException - if index is not between 0 and size

createFilter

protected Filter createFilter()

Lazy create a filter based on index

Overrides:

createFilter in class SubFeatureCollection

createIndex

protected List<FeatureId> createIndex()

Put this SubFeatureList in touch with its inner index

indexOf

public int indexOf(SimpleFeature feature)

lastIndexOf

public int lastIndexOf(SimpleFeature feature)

subList

public SimpleFeatureCollection subList(Filter subfilter)

Sublist of this sublist!

Implementation will ensure this does not get out of hand, order is maintained and only indexed once.

getFeatureMember

public SimpleFeature getFeatureMember(String id)
                               throws NoSuchElementException

Description copied from interface: RandomFeatureAccess

Access Feature content by feature id.

Specified by:

getFeatureMember in interface RandomFeatureAccess

Returns:

Feature with the indicated or id

Throws:

NoSuchElementException - if a Feature with the indicated id is not present

openIterator

public Iterator<SimpleFeature> openIterator()

Returns a quick iterator that uses get and size methods.

As with all resource collections it is assumed that the iterator will be closed after use.

Returns:

an iterator over the elements in this list in proper sequence.

See Also:

#modCount

removeFeatureMember

public SimpleFeature removeFeatureMember(String id)

Description copied from interface: RandomFeatureAccess

Optional Method

Specified by:

removeFeatureMember in interface RandomFeatureAccess