Package org.apache.commons.collections4
Interface OrderedIterator<E>
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- Type Parameters:
E
- the type to iterate over
- All Superinterfaces:
Iterator<E>
- All Known Subinterfaces:
OrderedMapIterator<K,V>
,ResettableListIterator<E>
- All Known Implementing Classes:
AbstractLinkedList.LinkedListIterator
,AbstractLinkedList.LinkedSubListIterator
,AbstractLinkedMap.EntrySetIterator
,AbstractLinkedMap.KeySetIterator
,AbstractLinkedMap.LinkMapIterator
,AbstractLinkedMap.ValuesIterator
,AbstractOrderedMapIteratorDecorator
,AbstractSortedMapDecorator.SortedMapIterator
,ArrayListIterator
,CursorableLinkedList.Cursor
,CursorableLinkedList.SubCursor
,DualTreeBidiMap.BidiOrderedMapIterator
,EmptyListIterator
,EmptyOrderedIterator
,EmptyOrderedMapIterator
,ListIteratorWrapper
,LoopingListIterator
,ObjectArrayListIterator
,ReverseListIterator
,SingletonListIterator
,UnmodifiableOrderedMapIterator
public interface OrderedIterator<E> extends Iterator<E>
Defines an iterator that operates over an ordered container. Subset ofListIterator
.This iterator allows both forward and reverse iteration through the container.
- Since:
- 3.0
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description boolean
hasPrevious()
Checks to see if there is a previous element that can be iterated to.E
previous()
Gets the previous element from the container.-
Methods inherited from interface java.util.Iterator
forEachRemaining, hasNext, next, remove
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Method Detail
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hasPrevious
boolean hasPrevious()
Checks to see if there is a previous element that can be iterated to.- Returns:
true
if the iterator has a previous element
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previous
E previous()
Gets the previous element from the container.- Returns:
- the previous element in the iteration
- Throws:
NoSuchElementException
- if the iteration is finished
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