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    }