com.tangosol.util
Class IteratorEnumerator

java.lang.Object
  com.tangosol.util.Base
      com.tangosol.util.IteratorEnumerator

All Implemented Interfaces:

Enumeration, Iterator

public class IteratorEnumerator
extends Base
implements Enumeration, Iterator

Provide a implementation of an enumerator based on data from an Iterator.

This has two main uses:

1. Turn Iterator interface into an Enumeration interface
2. Make an Iterator immutable

Version:

1.00, 03/23/99

Author:

Cameron Purdy

Constructor Summary

IteratorEnumerator(Iterator iter)
Construct the enumerator based on an Iterator.

Method Summary

boolean	hasMoreElements() Tests if this enumeration contains more elements.
boolean	hasNext() Tests if this Iterator contains more elements.
Object	next() Returns the next element of this Iterator.
Object	nextElement() Returns the next element of this enumeration.
void	remove() Remove the last-returned element that was returned by the Iterator.

Constructor Detail

IteratorEnumerator

public IteratorEnumerator(Iterator iter)

Construct the enumerator based on an Iterator.

Parameters:

iter - an Iterator

Method Detail

hasMoreElements

public boolean hasMoreElements()

Tests if this enumeration contains more elements.

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if the enumeration contains more elements, false otherwise

nextElement

public Object nextElement()

Returns the next element of this enumeration.

Specified by:

nextElement in interface Enumeration

Returns:

the next element in the enumeration

hasNext

public boolean hasNext()

Tests if this Iterator contains more elements.

Specified by:

hasNext in interface Iterator

Returns:

true if the Iterator contains more elements, false otherwise

next

public Object next()

Returns the next element of this Iterator.

Specified by:

next in interface Iterator

Returns:

the next element in the Iterator

remove

public void remove()

Remove the last-returned element that was returned by the Iterator. This method always throws UnsupportedOperationException because the Iterator is immutable.

Specified by:

remove in interface Iterator