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17  package org.apache.commons.jexl.util;
18  
19  
20  import java.util.Iterator;
21  import java.util.Enumeration;
22  
23  /***
24   * An Iterator wrapper for an Enumeration.
25   *
26   * @since 1.0
27   * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
28   * @version $Id: EnumerationIterator.java 398330 2006-04-30 12:52:35Z dion $
29   */
30  public class EnumerationIterator implements Iterator {
31      /***
32       * The enumeration to iterate over.
33       */
34      private final Enumeration enumeration;
35  
36      /***
37       * Creates a new iteratorwrapper instance for the specified 
38       * Enumeration.
39       *
40       * @param enumer  The Enumeration to wrap.
41       */
42      public EnumerationIterator(Enumeration enumer) {
43          enumeration = enumer;
44      }
45  
46      /***
47       * Move to next element in the array.
48       *
49       * @return The next object in the array.
50       */
51      public Object next() {
52          return enumeration.nextElement();
53      }
54      
55      /***
56       * Check to see if there is another element in the array.
57       *
58       * @return Whether there is another element.
59       */
60      public boolean hasNext() {
61          return enumeration.hasMoreElements();
62      }
63  
64      /***
65       *  Unimplemented.  No analogy in Enumeration
66       */
67      public void remove() {
68          
69      }
70     
71  }