| EmptyIterator.java |
1 /**
2 * Distribution License:
3 * JSword is free software; you can redistribute it and/or modify it under
4 * the terms of the GNU Lesser General Public License, version 2.1 as published by
5 * the Free Software Foundation. This program is distributed in the hope
6 * that it will be useful, but WITHOUT ANY WARRANTY; without even the
7 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
8 * See the GNU Lesser General Public License for more details.
9 *
10 * The License is available on the internet at:
11 * http://www.gnu.org/copyleft/lgpl.html
12 * or by writing to:
13 * Free Software Foundation, Inc.
14 * 59 Temple Place - Suite 330
15 * Boston, MA 02111-1307, USA
16 *
17 * Copyright: 2005
18 * The copyright to this program is held by it's authors.
19 *
20 * ID: $Id: EmptyIterator.java 2090 2011-03-07 04:13:05Z dmsmith $
21 */
22 package org.crosswire.common.util;
23
24 import java.util.Iterator;
25 import java.util.NoSuchElementException;
26
27 /**
28 * An <code>EmptyIterator</code> is an <code>Iterator</code> that iterates over
29 * nothing.
30 *
31 *
32 * @see gnu.lgpl.License for license details.<br>
33 * The copyright to this program is held by it's authors.
34 * @author DM Smith [ dmsmith555 at yahoo dot com]
35 */
36 public class EmptyIterator<E> implements Iterator<E> {
37
38 /**
39 * Construct an <code>EmptyIterator</code>.
40 */
41 public EmptyIterator() {
42 }
43
44 /* (non-Javadoc)
45 * @see java.util.Iterator#remove()
46 */
47 public void remove() {
48 throw new UnsupportedOperationException();
49 }
50
51 /* (non-Javadoc)
52 * @see java.util.Iterator#hasNext()
53 */
54 public boolean hasNext() {
55 return false;
56 }
57
58 /* (non-Javadoc)
59 * @see java.util.Iterator#next()
60 */
61 public E next() {
62 throw new NoSuchElementException();
63 }
64
65 }
66