001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.collections4.iterators; 018 019import java.util.Iterator; 020 021/** 022 * Provides basic behaviour for decorating an iterator with extra functionality. 023 * <p> 024 * All methods are forwarded to the decorated iterator. 025 * 026 * @since 3.0 027 */ 028public abstract class AbstractIteratorDecorator<E> extends AbstractUntypedIteratorDecorator<E, E> { 029 030 //----------------------------------------------------------------------- 031 /** 032 * Constructor that decorates the specified iterator. 033 * 034 * @param iterator the iterator to decorate, must not be null 035 * @throws NullPointerException if the iterator is null 036 */ 037 protected AbstractIteratorDecorator(final Iterator<E> iterator) { 038 super(iterator); 039 } 040 041 /** {@inheritDoc} */ 042 @Override 043 public E next() { 044 return getIterator().next(); 045 } 046 047}