SingletonIterator (Apache Commons Collections 4.0 API)

java.lang.Object
- org.apache.commons.collections4.iterators.SingletonIterator<E>

All Implemented Interfaces:

Iterator<E>, ResettableIterator<E>
```
public class SingletonIterator<E>
extends Object
implements ResettableIterator<E>
```
SingletonIterator is an Iterator over a single object instance.

Since:

2.0

Version:

$Id: SingletonIterator.html 972421 2015-11-14 20:00:04Z tn $

Constructor Summary

Constructors
Constructor and Description
`SingletonIterator(E object)` Constructs a new `SingletonIterator` where `remove` is a permitted operation.
`SingletonIterator(E object, boolean removeAllowed)` Constructs a new `SingletonIterator` optionally choosing if `remove` is a permitted operation.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`hasNext()` Is another object available from the iterator?
`E`	`next()` Get the next object from the iterator.
`void`	`remove()` Remove the object from this iterator.
`void`	`reset()` Reset the iterator to the start.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SingletonIterator
```
public SingletonIterator(E object)
```
    Constructs a new SingletonIterator where remove is a permitted operation.
    
    Parameters:
    object - the single object to return from the iterator
  - SingletonIterator
```
public SingletonIterator(E object,
                 boolean removeAllowed)
```
    Constructs a new SingletonIterator optionally choosing if remove is a permitted operation.
    
    Parameters:
    object - the single object to return from the iterator
    removeAllowed - true if remove is allowed
    Since:
    
    3.1
- Method Detail
  - hasNext
```
public boolean hasNext()
```
    Is another object available from the iterator?
    This returns true if the single object hasn't been returned yet.
    
    Specified by:
    
    hasNext in interface Iterator<E>
    
    Returns:
    true if the single object hasn't been returned yet
  - next
```
public E next()
```
    Get the next object from the iterator.
    This returns the single object if it hasn't been returned yet.
    
    Specified by:
    
    next in interface Iterator<E>
    
    Returns:
    the single object
    
    Throws:
    
    NoSuchElementException - if the single object has already been returned
  - remove
```
public void remove()
```
    Remove the object from this iterator.
    
    Specified by:
    
    remove in interface Iterator<E>
    
    Throws:
    
    IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.
    
    UnsupportedOperationException - if remove is not supported
  - reset
```
public void reset()
```
    Reset the iterator to the start.
    
    Specified by:
    
    reset in interface ResettableIterator<E>

Class SingletonIterator<E>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

SingletonIterator

SingletonIterator

Method Detail

hasNext

next

remove

reset