    001package org.cpsolver.ifs.util;
    002
    003/**
    004 * Counter.
    005 *
    006 * @version IFS 1.3 (Iterative Forward Search)<br>
    007 *          Copyright (C) 2006 - 2014 Tomáš Müller<br>
    008 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    009 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    010 * <br>
    011 *          This library is free software; you can redistribute it and/or modify
    012 *          it under the terms of the GNU Lesser General Public License as
    013 *          published by the Free Software Foundation; either version 3 of the
    014 *          License, or (at your option) any later version. <br>
    015 * <br>
    016 *          This library is distributed in the hope that it will be useful, but
    017 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    018 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    019 *          Lesser General Public License for more details. <br>
    020 * <br>
    021 *          You should have received a copy of the GNU Lesser General Public
    022 *          License along with this library; if not see
    023 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
    024 */
    025public class Counter {
    026    private long iValue = 0;
    027
    028    /** Set counter
    029     * @param value counter value
    030     **/
    031    public void set(long value) {
    032        iValue = value;
    033    }
    034
    035    /** Returns current value
    036     * @return counter value
    037     **/
    038    public long get() {
    039        return iValue;
    040    }
    041
    042    /** Increment counter
    043     * @param value counter increment
    044     **/
    045    public void inc(long value) {
    046        iValue += value;
    047    }
    048
    049    /** Decrement counter
    050     * @param value counter decrement
    051     **/
    052    public void dec(long value) {
    053        iValue -= value;
    054    }
    055}