1 /*
2 * Copyright (c) 2003-2008 by Cosylab d. d.
3 *
4 * This file is part of Java-Common.
5 *
6 * Java-Common is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * Java-Common is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with Java-Common. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 package com.cosylab.util;
21
22 import java.util.Iterator;
23 import java.util.NoSuchElementException;
24
25 /**
26 * An iterator over an empty set.
27 *
28 * @author Klemen Zagar, Cosylab
29 */
30 public class NoElementsIterator<T> implements Iterator<T> {
31 /* (non-Javadoc)
32 * @see java.util.Iterator#hasNext()
33 */
34 public boolean hasNext() {
35 return false;
36 }
37
38 /* (non-Javadoc)
39 * @see java.util.Iterator#next()
40 */
41 public T next() {
42 throw new NoSuchElementException();
43 }
44
45 /* (non-Javadoc)
46 * @see java.util.Iterator#remove()
47 */
48 public void remove() {
49 throw new IllegalStateException();
50 }
51 }
52
53
54 /* __oOo__ */