org.geotools.arcsde.data

Class ArcSdeFeatureCollection

Object

DataFeatureCollection

ArcSdeFeatureCollection

All Implemented Interfaces:

SimpleFeatureCollection, FeatureCollection<SimpleFeatureType,SimpleFeature>

public class ArcSdeFeatureCollection
extends DataFeatureCollection

FeatureCollection implementation that works over an ArcSDEFeatureReader or one of the decorators over it returned by ArcSDEDataStore#getFeatureReader(Query, Session, boolean).

Note this class and the iterators it returns are thread safe.

Since:

2.5

Author:

Gabriel Roldan (TOPP)

See Also:

FeatureCollection

Field Summary

Fields inherited from class DataFeatureCollection

id, listeners, schema

Constructor Summary

Constructors

Constructor and Description
ArcSdeFeatureCollection(ArcSdeFeatureSource featureSource, SimpleFeatureType queryType, Query namedQuery)

Method Summary

Modifier and Type	Method and Description
protected void	closeIterator(Iterator<SimpleFeature> close) Overrides to deal with closing the FeatureReaderIterators created at openIterator(), as superclass uses another class that does the same but its package visible (actually I don't see the point on two versions of FeatureReaderIterator?)
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()
SimpleFeatureType	getSchema() The schema for the child feature members of this collection.
protected Iterator<SimpleFeature>	openIterator() Overrides to avoid the superclass' call to DataFeatureCollection.writer() and it's UnsupportedOperationException
FeatureReader<SimpleFeatureType,SimpleFeature>	reader()

Methods inherited from class DataFeatureCollection

accepts, add, addAll, addAll, addListener, clear, close, close, contains, containsAll, features, fireChange, fireChange, fireChange, getID, isEmpty, iterator, purge, remove, removeAll, 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

ArcSdeFeatureCollection

public ArcSdeFeatureCollection(ArcSdeFeatureSource featureSource,
                               SimpleFeatureType queryType,
                               Query namedQuery)
                        throws IOException

Throws:

IOException

Method Detail

getSchema

public final SimpleFeatureType getSchema()

Description copied from interface: FeatureCollection

The schema for the child feature members of this collection.

Represents the most general FeatureType in common to all the features in this collection.

• For a collection backed by a shapefiles (or database tables) the FeatureType returned by getSchema() will complete describe each and every child in the collection.
• For mixed content FeatureCollections you will need to check the FeatureType of each Feature as it is retrived from the collection
• The degenerate case returns the "_Feature" FeatureType, where the only thing known is that the contents are Features.

Specified by:

getSchema in interface FeatureCollection<SimpleFeatureType,SimpleFeature>

Overrides:

getSchema in class DataFeatureCollection

Returns:

FeatureType describing the "common" schema to all child features of this collection

See Also:

FeatureCollection.getSchema()

getBounds

public final 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.

See Also:

FeatureCollection.getBounds()

getCount

public final int getCount()
                   throws IOException

Specified by:

getCount in class DataFeatureCollection

Throws:

IOException

reader

public FeatureReader<SimpleFeatureType,SimpleFeature> reader()
                                                      throws IOException

Overrides:

reader in class DataFeatureCollection

Throws:

IOException

openIterator

protected Iterator<SimpleFeature> openIterator()
                                        throws IOException

Overrides to avoid the superclass' call to DataFeatureCollection.writer() and it's UnsupportedOperationException

Overrides:

openIterator in class DataFeatureCollection

Returns:

Iterator, should be closed closeIterator

Throws:

IOException

closeIterator

protected void closeIterator(Iterator<SimpleFeature> close)
                      throws IOException

Overrides to deal with closing the FeatureReaderIterators created at openIterator(), as superclass uses another class that does the same but its package visible (actually I don't see the point on two versions of FeatureReaderIterator?)

Overrides:

closeIterator in class DataFeatureCollection

Throws:

IOException