org.apache.commons.collections.iterators
Class IteratorEnumeration<E>

java.lang.Object
  org.apache.commons.collections.iterators.IteratorEnumeration<E>

All Implemented Interfaces:

Enumeration<E>

public class IteratorEnumeration<E>
extends Object
implements Enumeration<E>

Adapter to make an Iterator instance appear to be an Enumeration instance.

Since:

Commons Collections 1.0

Version:

$Revision: 1.1.1.1 $ $Date: 2005/05/23 04:34:55 $

Author:

Matt Hall, John Watkinson, James Strachan

Constructor Summary

IteratorEnumeration()
Constructs a new IteratorEnumeration that will not function until setIterator is invoked.

IteratorEnumeration(Iterator<E> iterator)
Constructs a new IteratorEnumeration that will use the given iterator.

Method Summary

Iterator<E>	getIterator() Returns the underlying iterator.
boolean	hasMoreElements() Returns true if the underlying iterator has more elements.
E	nextElement() Returns the next element from the underlying iterator.
void	setIterator(Iterator<E> iterator) Sets the underlying iterator.

Methods inherited from class java.lang.Object

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

Constructor Detail

IteratorEnumeration

public IteratorEnumeration()

Constructs a new IteratorEnumeration that will not function until setIterator is invoked.

IteratorEnumeration

public IteratorEnumeration(Iterator<E> iterator)

Constructs a new IteratorEnumeration that will use the given iterator.

Parameters:

iterator - the iterator to use

Method Detail

hasMoreElements

public boolean hasMoreElements()

Returns true if the underlying iterator has more elements.

Specified by:

hasMoreElements in interface Enumeration<E>

Returns:

true if the underlying iterator has more elements

nextElement

public E nextElement()

Returns the next element from the underlying iterator.

Specified by:

nextElement in interface Enumeration<E>

Returns:

the next element from the underlying iterator.

Throws:

NoSuchElementException - if the underlying iterator has no more elements

getIterator

public Iterator<E> getIterator()

Returns the underlying iterator.

Returns:

the underlying iterator

setIterator

public void setIterator(Iterator<E> iterator)

Sets the underlying iterator.

Parameters:

iterator - the new underlying iterator