org.springframework.security.web.savedrequest
Class Enumerator<T>

java.lang.Object
  extended by org.springframework.security.web.savedrequest.Enumerator<T>
All Implemented Interfaces:
Enumeration<T>

public class Enumerator<T>
extends Object
implements Enumeration<T>

Adapter that wraps an Enumeration around a Java 2 collection Iterator.

Constructors are provided to easily create such wrappers.

This class is based on code in Apache Tomcat.

Version:
$Id: Enumerator.java 3543 2009-03-26 07:18:36Z ltaylor $
Author:
Craig McClanahan, Andrey Grebnev

Constructor Summary
Enumerator(Collection<T> collection)
          Return an Enumeration over the values of the specified Collection.
Enumerator(Collection<T> collection, boolean clone)
          Return an Enumeration over the values of the specified Collection.
Enumerator(Iterator<T> iterator)
          Return an Enumeration over the values returned by the specified Iterator.
Enumerator(Iterator<T> iterator, boolean clone)
          Return an Enumeration over the values returned by the specified Iterator.
Enumerator(Map<?,T> map)
          Return an Enumeration over the values of the specified Map.
Enumerator(Map<?,T> map, boolean clone)
          Return an Enumeration over the values of the specified Map.
 
Method Summary
 boolean hasMoreElements()
          Tests if this enumeration contains more elements.
 T nextElement()
          Returns the next element of this enumeration if this enumeration has at least one more element to provide.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Enumerator

public Enumerator(Collection<T> collection)
Return an Enumeration over the values of the specified Collection.

Parameters:
collection - Collection whose values should be enumerated

Enumerator

public Enumerator(Collection<T> collection,
                  boolean clone)
Return an Enumeration over the values of the specified Collection.

Parameters:
collection - Collection whose values should be enumerated
clone - true to clone iterator

Enumerator

public Enumerator(Iterator<T> iterator)
Return an Enumeration over the values returned by the specified Iterator.

Parameters:
iterator - Iterator to be wrapped

Enumerator

public Enumerator(Iterator<T> iterator,
                  boolean clone)
Return an Enumeration over the values returned by the specified Iterator.

Parameters:
iterator - Iterator to be wrapped
clone - true to clone iterator

Enumerator

public Enumerator(Map<?,T> map)
Return an Enumeration over the values of the specified Map.

Parameters:
map - Map whose values should be enumerated

Enumerator

public Enumerator(Map<?,T> map,
                  boolean clone)
Return an Enumeration over the values of the specified Map.

Parameters:
map - Map whose values should be enumerated
clone - true to clone iterator
Method Detail

hasMoreElements

public boolean hasMoreElements()
Tests if this enumeration contains more elements.

Specified by:
hasMoreElements in interface Enumeration<T>
Returns:
true if and only if this enumeration object contains at least one more element to provide, false otherwise

nextElement

public T nextElement()
              throws NoSuchElementException
Returns the next element of this enumeration if this enumeration has at least one more element to provide.

Specified by:
nextElement in interface Enumeration<T>
Returns:
the next element of this enumeration
Throws:
NoSuchElementException - if no more elements exist


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