01: /*
02: * Copyright (C) 2004 NNL Technology AB
03: * Visit www.infonode.net for information about InfoNode(R)
04: * products and how to contact NNL Technology AB.
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU General Public License
08: * as published by the Free Software Foundation; either version 2
09: * of the License, or (at your option) any later version.
10: *
11: * This program 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 this program; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19: * MA 02111-1307, USA.
20: */
21:
22: // $Id: EmptyIterator.java,v 1.2 2005/05/13 15:07:02 johan Exp $
23: package net.infonode.util.collection;
24:
25: import java.util.Iterator;
26:
27: /**
28: * @author $Author: johan $
29: * @version $Revision: 1.2 $
30: */
31: public class EmptyIterator implements Iterator {
32: public static final EmptyIterator INSTANCE = new EmptyIterator();
33:
34: private EmptyIterator() {
35: }
36:
37: public void remove() {
38: throw new UnsupportedOperationException();
39: }
40:
41: public boolean hasNext() {
42: return false;
43: }
44:
45: public Object next() {
46: return null;
47: }
48: }
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