org.geotools.feature.collection

Class DelegateFeatureIterator<F extends Feature>

Object

DelegateFeatureIterator<F>

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureIterator<F>

Direct Known Subclasses:

DelegateSimpleFeatureIterator

public class DelegateFeatureIterator<F extends Feature>
extends Object
implements FeatureIterator<F>

A feature iterator that completely delegates to a normal Iterator, simply allowing Java 1.4 code to escape the caste (sic) system.

This implementation checks the iterator to see if it implements Closeable in order to allow for collections that make use of system resources.

Author:

Jody Garnett, Refractions Research, Inc.

Constructor Summary

Constructors

Constructor and Description
DelegateFeatureIterator(FeatureCollection<? extends FeatureType,F> collection, Iterator<F> iterator) Deprecated. collection no longer used
DelegateFeatureIterator(Iterator<F> iterator) Wrap the provided iterator up as a FeatureIterator.

Method Summary

Modifier and Type	Method and Description
void	close() Closes this iterator and releases any system resources associated with it.
boolean	hasNext() Does another Feature exist in this Iteration.
F	next() Get the next Feature in this iteration.

Methods inherited from class Object

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

Constructor Detail

DelegateFeatureIterator

public DelegateFeatureIterator(Iterator<F> iterator)

Wrap the provided iterator up as a FeatureIterator.

Parameters:

iterator - Iterator to be used as a delegate.

DelegateFeatureIterator

public DelegateFeatureIterator(FeatureCollection<? extends FeatureType,F> collection,
                               Iterator<F> iterator)

Deprecated. collection no longer used

Wrap the provided iterator up as a FeatureIterator.

Parameters:

iterator - Iterator to be used as a delegate.

Method Detail

hasNext

public boolean hasNext()

Description copied from interface: FeatureIterator

Does another Feature exist in this Iteration.

Iterator defin: Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

Specified by:

hasNext in interface FeatureIterator<F extends Feature>

Returns:

true if more Features exist, false otherwise.

next

public F next()
       throws NoSuchElementException

Description copied from interface: FeatureIterator

Get the next Feature in this iteration.

Specified by:

next in interface FeatureIterator<F extends Feature>

Returns:

The next Feature

Throws:

NoSuchElementException - If no more Features exist.

close

public void close()

Description copied from interface: FeatureIterator

Closes this iterator and releases any system resources associated with it.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface FeatureIterator<F extends Feature>