org.eigenbase.util
Class Filterator<E>

java.lang.Object
  org.eigenbase.util.Filterator<E>

All Implemented Interfaces:

Iterator<E>

public class Filterator<E>
extends Object
implements Iterator<E>

Filtered iterator class: an iterator that includes only elements that are instanceof a specified class. Apologies for the dorky name.

Since:

November 9, 2004

Version:

$Id: //open/dev/farrago/src/org/eigenbase/util/Filterator.java#7 $

Author:

jason

See Also:

Util.cast(List, Class), Util.cast(Iterator, Class)

Field Summary

(package private) Class<E>	includeFilter
(package private) Iterator<? extends Object>	iterator
(package private) E	lookAhead
(package private) boolean	ready

Constructor Summary

Filterator(Iterator<?> iterator, Class<E> includeFilter)

Method Summary

boolean	hasNext()
E	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

includeFilter

Class<E> includeFilter

iterator

Iterator<? extends Object> iterator

lookAhead

E lookAhead

ready

boolean ready

Constructor Detail

Filterator

public Filterator(Iterator<?> iterator,
                  Class<E> includeFilter)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

next

public E next()

Specified by:

next in interface Iterator<E>

remove

public void remove()

Specified by:

remove in interface Iterator<E>