org.apache.commons.collections
Interface OrderedIterator
- All Superinterfaces:
- Iterator
- All Known Subinterfaces:
- OrderedMapIterator
- All Known Implementing Classes:
- AbstractLinkedList.LinkedListIterator, AbstractLinkedMap.LinkIterator
- public interface OrderedIterator
- extends Iterator
Defines an iterator that operates over a ordered collections.
This iterator allows both forward and reverse iteration through the collection.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 1.3 $ $Date: 2004/01/14 21:43:03 $
- Author:
- Stephen Colebourne
Method Summary |
boolean |
hasPrevious()
Checks to see if there is a previous entry that can be iterated to. |
Object |
previous()
Gets the previous element from the collection. |
hasPrevious
public boolean hasPrevious()
- Checks to see if there is a previous entry that can be iterated to.
- Returns:
true
if the iterator has a previous element
previous
public Object previous()
- Gets the previous element from the collection.
- Returns:
- the previous key in the iteration
- Throws:
NoSuchElementException
- if the iteration is finished
Copyright © 2001-2004 Apache Software Foundation. All Rights Reserved.