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: 2008
18   *     The copyright to this program is held by it's authors.
19   *
20   * ID: $Id: ItemIterator.java 1462 2007-07-02 02:32:23Z dmsmith $
21   */
22  package org.crosswire.common.util;
23  
24  import java.util.Iterator;
25  import java.util.NoSuchElementException;
26  
27  /**
28   * An <code>ItemIterator</code> is an <code>Iterator</code> that iterates a
29   * single item.
30   * 
31   * 
32   * @see gnu.lgpl.License for license details.<br>
33   *      The copyright to this program is held by it's authors.
34   * @author DM Smith [ dmsmith555 at yahoo dot com]
35   */
36  public class ItemIterator<T> implements Iterator<T> {
37      public ItemIterator(T item) {
38          this.item = item;
39      }
40  
41      /* (non-Javadoc)
42       * @see java.util.Iterator#hasNext()
43       */
44      public boolean hasNext() {
45          return !done;
46      }
47  
48      /* (non-Javadoc)
49       * @see java.util.Iterator#next()
50       */
51      public T next() {
52          if (done) {
53              throw new NoSuchElementException();
54          }
55  
56          done = true;
57          return item;
58      }
59  
60      /* (non-Javadoc)
61       * @see java.util.Iterator#remove()
62       */
63      public void remove() throws UnsupportedOperationException {
64          throw new UnsupportedOperationException();
65      }
66  
67      private T item;
68      private boolean done;
69  }
70