Package org.geotools.data.store

Class FilteringFeatureIterator<F extends Feature>

Object

FilteringFeatureIterator<F>

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureIterator<F>

Direct Known Subclasses:

FilteringSimpleFeatureIterator

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

Decorates a FeatureIterator with one that filters content.

Author:

Justin Deoliveira, The Open Planning Project

Field Summary

Fields

Modifier and Type	Field	Description
protected FeatureIterator<F>	delegate	delegate iterator
protected Filter	filter	The Filter
protected F	next	Next feature

Constructor Summary

Constructors

Constructor	Description
FilteringFeatureIterator(FeatureIterator<F> delegate, Filter filter)

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.

Methods inherited from class Object

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

Field Details

delegate

protected FeatureIterator<F extends Feature> delegate

delegate iterator

filter

protected Filter filter

The Filter

next

protected F extends Feature next

Next feature

Constructor Details

FilteringFeatureIterator

public FilteringFeatureIterator(FeatureIterator<F> delegate,
 Filter filter)

Method Details

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 AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FeatureIterator<F extends Feature>