/*
 *    Stopwords.java
 *    Copyright (C) 2001 Eibe Frank
 *
 *    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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package kea;

import java.io.Serializable;

/**
 * Class that can test whether a given string is a stop word.
 * Lowercases all words before the test.
 *
 * @author Eibe Frank (eibe@cs.waikato.ac.nz)
 * @version 1.0
 */
@SuppressWarnings("serial")
public abstract class Stopwords implements Serializable {
  
  /** 
   * Returns true if the given string is a stop word.
   */
  public abstract boolean isStopword(String str);
}