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1   /*
2    * Copyright 2004-2010 the Seasar Foundation and the Others.
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,
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  
17  package org.seasar.cubby.internal.util;
18  
19  import java.util.Enumeration;
20  import java.util.Iterator;
21  
22  /**
23   * {@link Iterator 反復子}をラップする{@link Enumeration 列挙}です。
24   * 
25   * @author baba
26   * 
27   * @param <E>
28   *            要素の型
29   */
30  public class IteratorEnumeration<E> implements Enumeration<E> {
31  
32  	/** イテレータ。 */
33  	private final Iterator<E> iterator;
34  
35  	/**
36  	 * 指定された{@link Iterator イテレータ}をラップした{@link Enumeration 列挙}をインスタンス化します。
37  	 * 
38  	 * @param iterator
39  	 *            イテレータ
40  	 */
41  	public IteratorEnumeration(final Iterator<E> iterator) {
42  		this.iterator = iterator;
43  	}
44  
45  	/**
46  	 * {@inheritDoc}
47  	 */
48  	public boolean hasMoreElements() {
49  		return iterator.hasNext();
50  	}
51  
52  	/**
53  	 * {@inheritDoc}
54  	 */
55  	public E nextElement() {
56  		return iterator.next();
57  	}
58  
59  }