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A Java full-stack web framework with programmatic configuration instead of XML and Annotations.

There is a newer version: 2.5.6

/*
 * Mentawai Web Framework http://mentawai.lohis.com.br/
 * Copyright (C) 2005  Sergio Oliveira Jr. ([email protected])
 *
 * 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 St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package org.mentawai.rule;
  
  
 /**
  * @author Sergio Oliveira Jr.
  */
 public class BooleanRule extends BasicRule {
	 
	 private static BooleanRule cache = null;
	 
	 public static BooleanRule getInstance() {
		 
		 if (cache != null) return cache;
		 
		 cache = new BooleanRule();
		 
		 return cache;
	 }
	 
	 public boolean check(String value) {
		 
        if (value.equals("true") || value.equals("false") || value.equals("0") || value.equals("1") || value.equals("on")) return true;
        
        return false;
    }
 }