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 | } |