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.Parent; 028 029 public class ParentChildRules extends Rule { 030 031 /** 032 * Infers child relaitonship from parent relationship. 033 * @param parent 034 * @return 035 */ 036 public Child infer(Parent parent) { 037 return new Child(parent.getObject(), parent.getSubject()); 038 } 039 040 /** 041 * Infers parent relationship from child relationship 042 * @param child 043 * @return 044 */ 045 public Parent infer(Child child) { 046 return new Parent(child.getObject(), child.getSubject()); 047 } 048 049 }