code: /*
   * Copyright (C) 2007 by
   * 
   * 	Xuan-Hieu Phan
   *	hieuxuan@ecei.tohoku.ac.jp or pxhieu@gmail.com
   * 	Graduate School of Information Sciences
   * 	Tohoku University
   * 
   *  Cam-Tu Nguyen
   *  ncamtu@gmail.com
   *  College of Technology
   *  Vietnam National University, Hanoi
   *
   * JGibbsLDA is a 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.
   *
   * JGibbsLDA 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 JGibbsLDA; if not, write to the Free Software Foundation,
   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
   */
  
  package jgibbslda;
  
  import java.util.Comparator;
  
  public class Pair implements Comparable<Pair> {
  	public Object first;
  	public Comparable second;
  	public static boolean naturalOrder = false;
  	
  	public Pair(Object k, Comparable v){
  		first = k;
  		second = v;		
  	}
  	
  	public Pair(Object k, Comparable v, boolean naturalOrder){
  		first = k;
  		second = v;
  		Pair.naturalOrder = naturalOrder; 
  	}
  	
  	public int compareTo(Pair p){
  		if (naturalOrder)
  			return this.second.compareTo(p.second);
  		else return -this.second.compareTo(p.second);
  	}
  }
  
  