/*
CaseInsensitiveSet.java
A non thread-safe case insensitive Set of String objects.
Created: 30 March 2010
Module By: Jonathan Abbey, jonabbey@arlut.utexas.edu
-----------------------------------------------------------------------
Ganymede Directory Management System
Copyright (C) 1996-2010
The University of Texas at Austin
Contact information
Web site: http://www.arlut.utexas.edu/gash2
Author Email: ganymede_author@arlut.utexas.edu
Email mailing list: ganymede@arlut.utexas.edu
US Mail:
Computer Science Division
Applied Research Laboratories
The University of Texas at Austin
PO Box 8029, Austin TX 78713-8029
Telephone: (512) 835-3200
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package arlut.csd.Util;
import java.util.Collection;
import java.util.Set;
import java.util.HashSet;
/*------------------------------------------------------------------------------
class
CaseInsensitiveSet
------------------------------------------------------------------------------*/
/**
* <p>CaseInsensitiveSet is a variant of a HashSet of String objects
* that forces all Strings added / tested against the set to lower
* case before adding / comparing.</p>
*
* <p>All Strings retrieved from a CaseInsensitiveSet will have been
* converted to lower case at add() time, so if you iterate over
* members of a CaseInsensitiveSet you will not get any String values
* back with upper case characters.</p>
*/
final public class CaseInsensitiveSet extends HashSet<String> {
/* -- */
public CaseInsensitiveSet()
{
super();
}
public CaseInsensitiveSet(Collection<String> c)
{
super(c);
}
public CaseInsensitiveSet(int initialCapacity, float loadFactor)
{
super(initialCapacity, loadFactor);
}
public CaseInsensitiveSet(int initialCapacity)
{
super(initialCapacity);
}
public boolean contains(String s)
{
return super.contains(s.toLowerCase());
}
public boolean add(String s)
{
s = s.toLowerCase();
return super.add(s);
}
public boolean remove(String s)
{
s = s.toLowerCase();
return super.remove(s);
}
}