org.acegisecurity.ui.savedrequest

Class Enumerator

java.lang.Object

org.acegisecurity.ui.savedrequest.Enumerator

All Implemented Interfaces:

Enumeration

public class Enumerator
extends Object
implements Enumeration

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 1784 2007-02-24 21:00:24Z luke_t $

Author:

Craig McClanahan, Andrey Grebnev

Constructor Summary

Constructors

Constructor and Description
Enumerator(Collection collection) Return an Enumeration over the values of the specified Collection.
Enumerator(Collection collection, boolean clone) Return an Enumeration over the values of the specified Collection.
Enumerator(Iterator iterator) Return an Enumeration over the values returned by the specified Iterator.
Enumerator(Iterator iterator, boolean clone) Return an Enumeration over the values returned by the specified Iterator.
Enumerator(Map map) Return an Enumeration over the values of the specified Map.
Enumerator(Map map, boolean clone) Return an Enumeration over the values of the specified Map.

Method Summary

Modifier and Type	Method and Description
boolean	hasMoreElements() Tests if this enumeration contains more elements.
Object	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 collection)

Return an Enumeration over the values of the specified Collection.

Parameters:

collection - Collection whose values should be enumerated

Enumerator

public Enumerator(Collection 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 iterator)

Return an Enumeration over the values returned by the specified Iterator.

Parameters:

iterator - Iterator to be wrapped

Enumerator

public Enumerator(Iterator 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 map)

Return an Enumeration over the values of the specified Map.

Parameters:

map - Map whose values should be enumerated

Enumerator

public Enumerator(Map 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

Returns:

true if and only if this enumeration object contains at least one more element to provide, false otherwise

nextElement

public Object 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

Returns:

the next element of this enumeration

Throws:

NoSuchElementException - if no more elements exist