| Class | Line # | Actions | |||
|---|---|---|---|---|---|
| ReverseListIterator | 35 | 4 | 4 |
| 1 | /* | |
| 2 | * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) | |
| 3 | * Copyright (C) $$Year-Rel$$ The Jalview Authors | |
| 4 | * | |
| 5 | * This file is part of Jalview. | |
| 6 | * | |
| 7 | * Jalview is free software: you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * as published by the Free Software Foundation, either version 3 | |
| 10 | * of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * Jalview is distributed in the hope that it will be useful, but | |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty | |
| 14 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
| 15 | * PURPOSE. See the GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with Jalview. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | * The Jalview Authors are detailed in the 'AUTHORS' file. | |
| 20 | */ | |
| 21 | package jalview.util; | |
| 22 | ||
| 23 | import java.util.Iterator; | |
| 24 | import java.util.List; | |
| 25 | import java.util.ListIterator; | |
| 26 | ||
| 27 | /** | |
| 28 | * An iterator that traverses a list backwards. | |
| 29 | * | |
| 30 | * @author gmcarstairs (and checked against | |
| 31 | * org.codehaus.groovey.runtime.ReverseListIterator) | |
| 32 | * | |
| 33 | * @param <E> | |
| 34 | */ | |
| 35 | public class ReverseListIterator<E> implements Iterator<E> | |
| 36 | { | |
| 37 | ||
| 38 | private ListIterator<E> iterator; | |
| 39 | ||
| 40 | 0 | public ReverseListIterator(List<E> stuff) |
| 41 | { | |
| 42 | 0 | this.iterator = stuff.listIterator(stuff.size()); |
| 43 | } | |
| 44 | ||
| 45 | 0 | @Override |
| 46 | public boolean hasNext() | |
| 47 | { | |
| 48 | 0 | return iterator.hasPrevious(); |
| 49 | } | |
| 50 | ||
| 51 | 0 | @Override |
| 52 | public E next() | |
| 53 | { | |
| 54 | 0 | return iterator.previous(); |
| 55 | } | |
| 56 | ||
| 57 | 0 | @Override |
| 58 | public void remove() | |
| 59 | { | |
| 60 | 0 | iterator.remove(); |
| 61 | } | |
| 62 | ||
| 63 | } |