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 2004/06/17 13:01:11 johan Exp $
23: package net.infonode.util.collection.map;
24:
25: import net.infonode.util.collection.map.base.MapIterator;
26:
27: public class EmptyIterator implements MapIterator {
28: public static final EmptyIterator INSTANCE = new EmptyIterator();
29:
30: private EmptyIterator() {
31: }
32:
33: public void remove() {
34: }
35:
36: public Object getKey() {
37: return null;
38: }
39:
40: public Object getValue() {
41: return null;
42: }
43:
44: public void next() {
45: }
46:
47: public boolean atEntry() {
48: return false;
49: }
50: }
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