keygetterbuilder.java

是一个专门设计用于触摸屏的POS(point of sales)应用软件

//    Tina POS is a point of sales application designed for touch screens.
//    Copyright (C) 2005 Adrian Romero Corchado.
//    http://sourceforge.net/projects/tinapos
//
//    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, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

package net.adrianromero.data.loader;

/**
 *
 * @author adrianromero
 * Created on 27 de febrero de 2007, 22:09
 *
 */
public class KeyGetterBuilder implements IKeyGetter {
  
    public final static IKeyGetter INSTANCE = new KeyGetterBuilder();
    
    /** Creates a new instance of KeyGetterBuilder */
    public KeyGetterBuilder() {
    }
    
    public Object getKey(Object value) {
        
        return (value == null) 
            ? null
            : ((IKeyed) value).getKey();
    }   
}