Class | Line # | Actions | |||
---|---|---|---|---|---|
CaseInsensitiveString | 30 | 11 | 8 |
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 | /** | |
24 | * A class to wrap a case insensitive string. For use in collections where we | |
25 | * want to preserve case, but do not want to duplicate upper and lower case | |
26 | * variants | |
27 | */ | |
28 | import java.util.Locale; | |
29 | ||
30 | public final class CaseInsensitiveString | |
31 | { | |
32 | String value; | |
33 | ||
34 | 0 | public CaseInsensitiveString(String s) |
35 | { | |
36 | 0 | this.value = s; |
37 | } | |
38 | ||
39 | 0 | @Override |
40 | public String toString() | |
41 | { | |
42 | 0 | return value; |
43 | } | |
44 | ||
45 | /** | |
46 | * Answers true if the object compared to is a CaseInsensitiveString wrapping | |
47 | * the same string value (ignoring case), or if both wrap a null value, else | |
48 | * false | |
49 | */ | |
50 | 0 | @Override |
51 | public boolean equals(Object o) | |
52 | { | |
53 | 0 | if (o == null) |
54 | { | |
55 | 0 | return false; |
56 | } | |
57 | 0 | if (!(o instanceof CaseInsensitiveString)) |
58 | { | |
59 | 0 | return false; |
60 | } | |
61 | 0 | CaseInsensitiveString obj = (CaseInsensitiveString) o; |
62 | 0 | if (value == null) |
63 | { | |
64 | 0 | return obj.value == null; |
65 | } | |
66 | 0 | return value.equalsIgnoreCase(obj.value); |
67 | } | |
68 | ||
69 | /** | |
70 | * hashCode overriden to guarantee that 'equal' objects have the same hash | |
71 | * code | |
72 | */ | |
73 | 0 | @Override |
74 | public int hashCode() | |
75 | { | |
76 | 0 | return value == null ? super.hashCode() |
77 | : value.toUpperCase(Locale.ROOT).hashCode(); | |
78 | } | |
79 | } |