/*
* -----------------------------------------------------------------------
* File: $HeadURL: http://keith-laptop/svn/krs/LanguageTest/trunk/org.thanlwinsoft.languagetest/src/org/thanlwinsoft/languagetest/language/test/ForeignComparator.java $
* Revision $LastChangedRevision: 1388 $
* Last Modified: $LastChangedDate: 2009-01-31 19:32:00 +0700 (Sat, 31 Jan 2009) $
* Last Change by: $LastChangedBy: keith $
* -----------------------------------------------------------------------
* Copyright (C) 2003 Keith Stribley <devel@thanlwinsoft.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
* -----------------------------------------------------------------------
*/
package org.thanlwinsoft.languagetest.language.test;
/**
*
* @author Keith Stribley
*/
public class ForeignComparator implements java.util.Comparator<TestItem>
{
/** Creates a new instance of ForeignComparator */
public ForeignComparator()
{
}
public int compare(TestItem itemA, TestItem itemB)
{
int comp = -1;
if (itemA != null && itemB != null)
{
comp = itemA.getForeignText().compareTo(itemB.getForeignText());
if (comp == 0 && itemA != itemB)
{
// if both objects have the same foreign string, then generate
// an arbitrary, but repeatable order from the hash code
comp = itemA.hashCode() - itemB.hashCode();
}
}
else if (itemA == null)
{
if (itemB == null) comp = 0;
else comp = 1;
}
else
{
comp = -1;
}
return comp;
}
}