1 package org.apache.commons.ognl;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.Enumeration;
23 import java.util.Iterator;
24
25 /**
26 * Object that implements Iterator from an Enumeration
27 *
28 * @author Luke Blanshard (blanshlu@netscape.net)
29 * @author Drew Davidson (drew@ognl.org)
30 */
31 public class EnumerationIterator<E>
32 implements Iterator<E>
33 {
34
35 public static <T> Iterator<T> newIterator( Enumeration<T> e )
36 {
37 return new EnumerationIterator<T>( e );
38 }
39
40 private final Enumeration<E> e;
41
42 public EnumerationIterator( Enumeration<E> e )
43 {
44 this.e = e;
45 }
46
47 public boolean hasNext()
48 {
49 return e.hasMoreElements();
50 }
51
52 public E next()
53 {
54 return e.nextElement();
55 }
56
57 public void remove()
58 {
59 throw new UnsupportedOperationException( "remove() not supported by Enumeration" );
60 }
61
62 }