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.rules; 024 025 import biz.hammurapi.rules.Rule; 026 import biz.hammurapi.rules.tutorial.conclusions.Child; 027 import biz.hammurapi.rules.tutorial.conclusions.Daughter; 028 029 public class DaughterRule extends Rule { 030 031 public DaughterRule() { 032 setMethodFactTypes(Child.class, Daughter.class); 033 } 034 035 public void infer(Child child) { 036 if (!(child instanceof Daughter) && !child.getSubject().isMale()) { 037 post(new Daughter(child.getSubject(), child.getObject())); 038 } 039 } 040 }