001 /* 002 * hammurapi-rules-tutorial @mesopotamia.version@ 003 * Hammurapi rules tutorial. 004 * Copyright (C) 2006 Hammurapi Group 005 * 006 * This program is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 2 of the License, or (at your option) any later version. 010 * 011 * This program is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public 017 * License along with this library; if not, write to the Free Software 018 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 019 * 020 * URL: http://http://www.hammurapi.biz 021 * e-Mail: support@hammurapi.biz 022 */ 023 package biz.hammurapi.rules.tutorial.conclusions; 024 025 import biz.hammurapi.rules.Negator; 026 027 /** 028 * Negates bad facts. Uses equals() to compare facts. 029 * @author Pavel Vlasov 030 * @revision $Revision$ 031 */ 032 public class BadFact implements Negator { 033 String message; 034 private Object fact; 035 036 public BadFact(Object obj, String message) { 037 this.message=message; 038 this.fact=obj; 039 } 040 041 public boolean negates(Object obj) { 042 return fact.equals(obj); 043 } 044 045 public String toString() { 046 return "[BAD FACT] "+message+": "+fact; 047 } 048 049 }