    001package org.cpsolver.ifs.assignment;
    002
    003import org.cpsolver.ifs.model.Value;
    004import org.cpsolver.ifs.model.Variable;
    005
    006/**
    007 * An assignment inherited from some other assignment with only a few local
    008 * modifications. This can be used to pass a "copy" of an assignment to a neighbor
    009 * selection.
    010 *
    011 * @see Assignment
    012 *
    013 * @author  Tomáš Müller
    014 * @version IFS 1.3 (Iterative Forward Search)<br>
    015 *          Copyright (C) 2014 Tomáš Müller<br>
    016 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    017 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    018 * <br>
    019 *          This library is free software; you can redistribute it and/or modify
    020 *          it under the terms of the GNU Lesser General Public License as
    021 *          published by the Free Software Foundation; either version 3 of the
    022 *          License, or (at your option) any later version. <br>
    023 * <br>
    024 *          This library is distributed in the hope that it will be useful, but
    025 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    026 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    027 *          Lesser General Public License for more details. <br>
    028 * <br>
    029 *          You should have received a copy of the GNU Lesser General Public
    030 *          License along with this library; if not see <a href='http://www.gnu.org/licenses'>http://www.gnu.org/licenses</a>.
    031 * @param <V> Variable
    032 * @param <T> Value
    033 **/
    034public interface InheritedAssignment<V extends Variable<V, T>, T extends Value<V, T>> extends Assignment<V, T> {
    035
    036    /**
    037     * Return parent assignment.
    038     * @return parent assignment
    039     */
    040    public Assignment<V, T> getParentAssignment();
    041
    042    /**
    043     * Version of the assignment (usually the iteration of the parent assignment at the time of creation)
    044     * @return version of the inherited assignment
    045     */
    046    public long getVersion();
    047}