01: /*
02: * Copyright 2004 The Apache Software Foundation
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.apache.commons.collections.iterators;
17:
18: import org.apache.commons.collections.OrderedIterator;
19: import org.apache.commons.collections.ResettableIterator;
20:
21: /**
22: * Provides an implementation of an empty ordered iterator.
23: *
24: * @since Commons Collections 3.1
25: * @version $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
26: *
27: * @author Stephen Colebourne
28: */
29: public class EmptyOrderedIterator extends AbstractEmptyIterator
30: implements OrderedIterator, ResettableIterator {
31:
32: /**
33: * Singleton instance of the iterator.
34: * @since Commons Collections 3.1
35: */
36: public static final OrderedIterator INSTANCE = new EmptyOrderedIterator();
37:
38: /**
39: * Constructor.
40: */
41: protected EmptyOrderedIterator() {
42: super();
43: }
44:
45: }
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