1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.commons.jcs3.jcache;
20
21 import java.util.Iterator;
22
23 public class ImmutableIterator<T> implements Iterator<T>
24 {
25 private final Iterator<T> delegate;
26
27 public ImmutableIterator(final Iterator<T> delegate)
28 {
29 this.delegate = delegate;
30 }
31
32 @Override
33 public boolean hasNext()
34 {
35 return delegate.hasNext();
36 }
37
38 @Override
39 public T next()
40 {
41 return delegate.next();
42 }
43
44 @Override
45 public void remove()
46 {
47 throw new UnsupportedOperationException("this iterator is immutable");
48 }
49 }