/*
 * Copyright (c) 2005,2008 Declarative Engineering LLC.
 * All rights reserved.  This program and the accompanying materials
 * are made available under the terms of the Declarative Engineering LLC
 * verson 1 which accompanies this distribution, and is available at
 * http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
 */
package com.common.util;

/*
 * A simple empty iterator singleton.
 */
public final class EmptyIterator implements IIterator {
	/** The one and only empty iterator object. */
	private static EmptyIterator singleton = new EmptyIterator();
/**
 * Gets the single instance of this iterator.
 * @return The one and only empty iterator object.
 */
public static IIterator getSingleton() {
	return singleton;
}//getSingleton()//
/**
 * EmptyIterator constructor.
 */
private EmptyIterator() {
}//EmptyIterator()//
/* (non-Javadoc)
 * @see com.common.util.IIterator#hasNext()
 */
public boolean hasNext() {
	return false;
}//hasNext()//
/* (non-Javadoc)
 * @see com.common.util.IIterator#next()
 */
public Object next() {
	throw new IndexOutOfBoundsException("Empty iterator.");
}//next()//
/* (non-Javadoc)
 * @see com.common.util.IIterator#remove()
 */
public boolean remove() {
	return false;
}//remove()//
/* (non-Javadoc)
 * @see com.common.util.IIterator#resetToFront()
 */
public void resetToFront() {
}//resetToFront()//
}//EmptyIterator//