1 /*
2 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3 *
4 * This software is open source.
5 * See the bottom of this file for the licence.
6 */
7
8 package org.dom4j.tree;
9
10 import java.util.Iterator;
11
12 /***
13 * <p>
14 * <code>SingleIterator</code> is an {@link Iterator}over a single object
15 * instance.
16 * </p>
17 *
18 * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
19 * @version $Revision: 1.9 $
20 */
21 public class SingleIterator implements Iterator {
22 private boolean first = true;
23
24 private Object object;
25
26 public SingleIterator(Object object) {
27 this.object = object;
28 }
29
30 public boolean hasNext() {
31 return first;
32 }
33
34 public Object next() {
35 Object answer = object;
36 object = null;
37 first = false;
38
39 return answer;
40 }
41
42 public void remove() {
43 throw new UnsupportedOperationException("remove() is not supported by "
44 + "this iterator");
45 }
46 }
47
48 /*
49 * Redistribution and use of this software and associated documentation
50 * ("Software"), with or without modification, are permitted provided that the
51 * following conditions are met:
52 *
53 * 1. Redistributions of source code must retain copyright statements and
54 * notices. Redistributions must also contain a copy of this document.
55 *
56 * 2. Redistributions in binary form must reproduce the above copyright notice,
57 * this list of conditions and the following disclaimer in the documentation
58 * and/or other materials provided with the distribution.
59 *
60 * 3. The name "DOM4J" must not be used to endorse or promote products derived
61 * from this Software without prior written permission of MetaStuff, Ltd. For
62 * written permission, please contact dom4j-info@metastuff.com.
63 *
64 * 4. Products derived from this Software may not be called "DOM4J" nor may
65 * "DOM4J" appear in their names without prior written permission of MetaStuff,
66 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
67 *
68 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
69 *
70 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
71 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
72 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
73 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
74 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
75 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
76 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
77 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
78 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
79 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
80 * POSSIBILITY OF SUCH DAMAGE.
81 *
82 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
83 */