IteratorEnumeration (Apache Commons Collections 4.2 API)

java.lang.Object
- 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

Constructor Summary

Constructors
Constructor	Description
`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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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

Methods inherited from interface java.util.Enumeration
asIterator

- 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