1 /* 2 * Copyright (C) 2004-2006 Christian Siefkes <christian@siefkes.net>. 3 * Development of this software is supported by the German Research Society, 4 * Berlin-Brandenburg Graduate School in Distributed Information Systems 5 * (DFG grant no. GRK 316). 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, visit 19 * http://www.gnu.org/licenses/gpl.html or write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 package de.fu_berlin.ties.filter; 23 24 import org.dom4j.Element; 25 26 import de.fu_berlin.ties.ProcessingException; 27 28 /*** 29 * An oracle decides whether {@link de.fu_berlin.ties.filter.ElementFilter}s 30 * should match elements. They can be used to train 31 * {@link de.fu_berlin.ties.filter.TrainableFilter}s. 32 * 33 * @author Christian Siefkes 34 * @version $Revision: 1.4 $, $Date: 2006/10/21 16:04:20 $, $Author: siefkes $ 35 */ 36 public interface Oracle { 37 38 /*** 39 * Decides whether an element should be accepted by filters. 40 * 41 * @param element the element to test 42 * @return <code>true</code> if filters should accept the element; 43 * <code>false</code> otherwise 44 * @throws ProcessingException if an error occurs during filtering 45 */ 46 boolean shouldMatch(final Element element) throws ProcessingException; 47 48 }