001/**
002 * Copyright (C) 2007 - 2016, Jens Lehmann
003 *
004 * This file is part of DL-Learner.
005 *
006 * DL-Learner is free software; you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation; either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * DL-Learner 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
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package org.dllearner.kb.extraction;
020
021import org.apache.log4j.Logger;
022
023
024
025/**
026 * Property node, has connection to a and b part
027 * 
028 * @author Sebastian Hellmann
029 * 
030 */
031
032public abstract class PropertyNode extends Node {
033
034        public static Logger logger = Logger.getLogger(PropertyNode.class);
035        
036        // the a and b part of a property
037        protected Node a;
038        protected Node b;
039
040
041        public PropertyNode(String propertyURI, Node a, Node b) {
042                super(propertyURI);
043                this.a = a;
044                this.b = b;
045                
046        }
047
048        public Node getAPart() {
049                return a;
050        }
051
052        public Node getBPart() {
053                return b;
054        }
055        
056
057        
058}