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1   /*
2    * Copyright 2004-2009 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  package org.seasar.cubby.internal.util;
17  
18  import java.util.Enumeration;
19  import java.util.Iterator;
20  
21  /**
22   * {@link Iterator 反復子}をラップする{@link Enumeration 列挙}です。
23   * 
24   * @author baba
25   * 
26   * @param <E>
27   *            要素の型
28   */
29  public class IteratorEnumeration<E> implements Enumeration<E> {
30  
31  	/** イテレータ。 */
32  	private final Iterator<E> iterator;
33  
34  	/**
35  	 * 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。
36  	 * 
37  	 * @param iterator
38  	 *            イテレータ
39  	 */
40  	public IteratorEnumeration(final Iterator<E> iterator) {
41  		this.iterator = iterator;
42  	}
43  
44  	/**
45  	 * {@inheritDoc}
46  	 */
47  	public boolean hasMoreElements() {
48  		return iterator.hasNext();
49  	}
50  
51  	/**
52  	 * {@inheritDoc}
53  	 */
54  	public E nextElement() {
55  		return iterator.next();
56  	}
57  
58  }