001package org.cpsolver.ifs.model;
002
003import java.util.Map;
004
005import org.cpsolver.ifs.assignment.Assignment;
006
007
008/**
009 * An extension of the {@link InfoProvider} class providing extended information. The extended info
010 * may be computationally more expensive as it is only computed when needed (see {@link Model#getExtendedInfo(Assignment)}).
011 * 
012 * @see Model
013 * 
014 * @author  Tomáš Müller
015 * @version IFS 1.3 (Iterative Forward Search)<br>
016 *          Copyright (C) 2014 Tomáš Müller<br>
017 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
018 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
019 * <br>
020 *          This library is free software; you can redistribute it and/or modify
021 *          it under the terms of the GNU Lesser General Public License as
022 *          published by the Free Software Foundation; either version 3 of the
023 *          License, or (at your option) any later version. <br>
024 * <br>
025 *          This library is distributed in the hope that it will be useful, but
026 *          WITHOUT ANY WARRANTY; without even the implied warranty of
027 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
028 *          Lesser General Public License for more details. <br>
029 * <br>
030 *          You should have received a copy of the GNU Lesser General Public
031 *          License along with this library; if not see
032 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
033 * @param <V> Variable
034 * @param <T> Value
035 */
036public interface ExtendedInfoProvider<V extends Variable<V, T>, T extends Value<V, T>> extends InfoProvider<V, T> {
037    
038    /**
039     * Extended information about current solution. Similar to
040     * {@link InfoProvider#getInfo(Assignment, Map)}, but some more information (that is more
041     * expensive to compute) might be added.
042     * @param assignment current assignment
043     * @param info extended info
044     */
045    public void getExtendedInfo(Assignment<V, T> assignment, Map<String, String> info);
046
047}