org.apache.commons.collections4.iterators
Class IteratorEnumeration<E>

java.lang.Object
  extended by org.apache.commons.collections4.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:
1.0
Version:
$Id: IteratorEnumeration.java 1477802 2013-04-30 20:01:28Z tn $

Constructor Summary
IteratorEnumeration()
          Constructs a new IteratorEnumeration that will not function until setIterator is invoked.
IteratorEnumeration(Iterator<? extends E> iterator)
          Constructs a new IteratorEnumeration that will use the given iterator.
 
Method Summary
 Iterator<? extends 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<? extends 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<? extends 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<? extends E> getIterator()
Returns the underlying iterator.

Returns:
the underlying iterator

setIterator

public void setIterator(Iterator<? extends E> iterator)
Sets the underlying iterator.

Parameters:
iterator - the new underlying iterator


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