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.ListIterator; 020 021import org.apache.commons.collections.primitives.CharListIterator; 022 023/** 024 * Adapts an {@link CharListIterator CharListIterator} to the 025 * {@link ListIterator ListIterator} interface. 026 * <p /> 027 * This implementation delegates most methods 028 * to the provided {@link CharListIterator CharListIterator} 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 CharListIteratorListIterator implements ListIterator { 036 037 /** 038 * Create a {@link ListIterator ListIterator} wrapping 039 * the specified {@link CharListIterator CharListIterator}. 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 CharListIterator CharListIterator} to wrap 045 * @return a {@link ListIterator ListIterator} wrapping the given 046 * <i>iterator</i>, or <code>null</code> when <i>iterator</i> is 047 * <code>null</code>. 048 */ 049 public static ListIterator wrap(CharListIterator iterator) { 050 return null == iterator ? null : new CharListIteratorListIterator(iterator); 051 } 052 053 /** 054 * Creates an {@link ListIterator ListIterator} wrapping 055 * the specified {@link CharListIterator CharListIterator}. 056 * @see #wrap 057 */ 058 public CharListIteratorListIterator(CharListIterator iterator) { 059 _iterator = iterator; 060 } 061 062 public int nextIndex() { 063 return _iterator.nextIndex(); 064 } 065 066 public int previousIndex() { 067 return _iterator.previousIndex(); 068 } 069 070 public boolean hasNext() { 071 return _iterator.hasNext(); 072 } 073 074 public boolean hasPrevious() { 075 return _iterator.hasPrevious(); 076 } 077 078 public Object next() { 079 return new Character(_iterator.next()); 080 } 081 082 public Object previous() { 083 return new Character(_iterator.previous()); 084 } 085 086 public void add(Object obj) { 087 _iterator.add(((Character)obj).charValue()); 088 } 089 090 public void set(Object obj) { 091 _iterator.set(((Character)obj).charValue()); 092 } 093 094 public void remove() { 095 _iterator.remove(); 096 } 097 098 private CharListIterator _iterator = null; 099 100}