2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
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.
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.
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.
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
28 import java.util.Locale;
30 public final class CaseInsensitiveString
34 public CaseInsensitiveString(String s)
40 public String toString()
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
51 public boolean equals(Object o)
57 if (!(o instanceof CaseInsensitiveString))
61 CaseInsensitiveString obj = (CaseInsensitiveString) o;
64 return obj.value == null;
66 return value.equalsIgnoreCase(obj.value);
70 * hashCode overriden to guarantee that 'equal' objects have the same hash
76 return value == null ? super.hashCode()
77 : value.toUpperCase(Locale.ROOT).hashCode();