001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.commons.jcs.jcache;
020
021import java.util.Iterator;
022
023public class ImmutableIterator<T> implements Iterator<T>
024{
025    private final Iterator<T> delegate;
026
027    public ImmutableIterator(final Iterator<T> delegate)
028    {
029        this.delegate = delegate;
030    }
031
032    @Override
033    public boolean hasNext()
034    {
035        return delegate.hasNext();
036    }
037
038    @Override
039    public T next()
040    {
041        return delegate.next();
042    }
043
044    @Override
045    public void remove()
046    {
047        throw new UnsupportedOperationException("this iterator is immutable");
048    }
049}