1   /**
2    * Distribution License:
3    * JSword is free software; you can redistribute it and/or modify it under
4    * the terms of the GNU Lesser General Public License, version 2.1 as published by
5    * the Free Software Foundation. This program is distributed in the hope
6    * that it will be useful, but WITHOUT ANY WARRANTY; without even the
7    * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
8    * See the GNU Lesser General Public License for more details.
9    *
10   * The License is available on the internet at:
11   *       http://www.gnu.org/copyleft/lgpl.html
12   * or by writing to:
13   *      Free Software Foundation, Inc.
14   *      59 Temple Place - Suite 330
15   *      Boston, MA 02111-1307, USA
16   *
17   * Copyright: 2005
18   *     The copyright to this program is held by it's authors.
19   *
20   * ID: $Id: IteratorEnumeration.java 2050 2010-12-09 15:31:45Z dmsmith $
21   */
22  package org.crosswire.common.util;
23  
24  import java.util.Enumeration;
25  import java.util.Iterator;
26  import java.util.NoSuchElementException;
27  
28  /**
29   * Convert an Iterator into a Enumeration.
30   * <p>
31   * The only real difference between the 2 is the naming and that Enumeration
32   * does not have the delete method.
33   * 
34   * @see gnu.lgpl.License for license details.<br>
35   *      The copyright to this program is held by it's authors.
36   * @author Joe Walker [joe at eireneh dot com]
37   */
38  public final class IteratorEnumeration<E> implements Enumeration<E> {
39      /**
40       * Create an Enumeration that proxies to an Iterator
41       */
42      public IteratorEnumeration(Iterator<E> it) {
43          this.it = it;
44      }
45  
46      /**
47       * Returns true if the iteration has more elements
48       */
49      public boolean hasMoreElements() {
50          return it.hasNext();
51      }
52  
53      /**
54       * Returns the next element in the interation
55       */
56      public E nextElement() throws NoSuchElementException {
57          return it.next();
58      }
59  
60      /**
61       * The Iterator that we are proxying to
62       */
63      private Iterator<E> it;
64  }
65