/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.amber.table;
import java.util.Comparator;
/**
* Sorts columns fields.
*/
public class ColumnCompare implements Comparator<AmberColumn> {
/**
* Compares the fields.
*/
public int compare(AmberColumn a, AmberColumn b)
{
if (a.isPrimaryKey() && ! b.isPrimaryKey())
return -1;
else if (b.isPrimaryKey() && ! a.isPrimaryKey())
return 1;
else
return a.getName().compareTo(b.getName());
}
}