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Java > Open Source Codes > org > apache > commons > collections > iterators > EmptyMapIterator


1 /*
2  * Copyright 2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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.MapIterator;
19 import org.apache.commons.collections.ResettableIterator;
20
21 /**
22  * Provides an implementation of an empty map iterator.
23  *
24  * @since Commons Collections 3.1
25  * @version $Revision: 1.1 $ $Date: 2004/05/22 09:46:39 $
26  *
27  * @author Stephen Colebourne
28  */
29 public class EmptyMapIterator extends AbstractEmptyIterator implements MapIterator, ResettableIterator {
30
31     /**
32      * Singleton instance of the iterator.
33      * @since Commons Collections 3.1
34      */
35     public static final MapIterator INSTANCE = new EmptyMapIterator();
36
37     /**
38      * Constructor.
39      */
40     protected EmptyMapIterator() {
41         super();
42     }
43
44 }
45
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