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.collections.primitives.adapters; 018 019import java.util.Iterator; 020 021import org.apache.commons.collections.primitives.ByteIterator; 022 023/** 024 * Adapts an {@link ByteIterator ByteIterator} to the 025 * {@link java.util.Iterator Iterator} interface. 026 * <p /> 027 * This implementation delegates most methods 028 * to the provided {@link ByteIterator ByteIterator} 029 * implementation in the "obvious" way. 030 * 031 * @since Commons Primitives 1.0 032 * @version $Revision: 480462 $ $Date: 2006-11-29 03:15:00 -0500 (Wed, 29 Nov 2006) $ 033 * @author Rodney Waldhoff 034 */ 035public class ByteIteratorIterator implements Iterator { 036 037 /** 038 * Create an {@link Iterator Iterator} wrapping 039 * the specified {@link ByteIterator ByteIterator}. When 040 * the given <i>iterator</i> is <code>null</code>, 041 * returns <code>null</code>. 042 * 043 * @param iterator the (possibly <code>null</code>) 044 * {@link ByteIterator ByteIterator} to wrap 045 * @return an {@link Iterator Iterator} wrapping the given 046 * <i>iterator</i>, or <code>null</code> when <i>iterator</i> is 047 * <code>null</code>. 048 */ 049 public static Iterator wrap(ByteIterator iterator) { 050 return null == iterator ? null : new ByteIteratorIterator(iterator); 051 } 052 053 /** 054 * Creates an {@link Iterator Iterator} wrapping 055 * the specified {@link ByteIterator ByteIterator}. 056 * @see #wrap 057 */ 058 public ByteIteratorIterator(ByteIterator iterator) { 059 _iterator = iterator; 060 } 061 062 public boolean hasNext() { 063 return _iterator.hasNext(); 064 } 065 066 public Object next() { 067 return new Byte(_iterator.next()); 068 } 069 070 public void remove() { 071 _iterator.remove(); 072 } 073 074 private ByteIterator _iterator = null; 075 076}