Package org.geotools.feature.collection

Class PushBackFeatureIterator<F extends Feature>

Object

DecoratingFeatureIterator<F>

PushBackFeatureIterator<F>

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureIterator<F>

public class PushBackFeatureIterator<F extends Feature>
extends DecoratingFeatureIterator<F>

A feature iterator allowing to push back one feature

Field Summary

Fields inherited from class DecoratingFeatureIterator

delegate

Constructor Summary

Constructors

Constructor	Description
PushBackFeatureIterator(FeatureIterator<F> iterator)	Wrap the provided FeatureIterator.

Method Summary

Modifier and Type	Method	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.
void	pushBack()	Pushes back the last feature returned by next().

Methods inherited from class Object

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

Constructor Detail

PushBackFeatureIterator

public PushBackFeatureIterator(FeatureIterator<F> iterator)

Wrap the provided 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>

Overrides:

hasNext in class DecoratingFeatureIterator<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>

Overrides:

next in class DecoratingFeatureIterator<F extends Feature>

Returns:

The next Feature

Throws:

NoSuchElementException - If no more Features exist.

pushBack

public void pushBack()

Pushes back the last feature returned by next(). Will throw an IllegalStateException if there is no feature to push back. Only a single pushBack call can be performed between two calls to next()

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 AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FeatureIterator<F extends Feature>

Overrides:

close in class DecoratingFeatureIterator<F extends Feature>