001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.core;
020
021
022/**
023 * @author apr@cs.com.uy
024 * @version $Id$
025 * @since jPOS 1.1
026 *
027 * Multipurpose sequencer.<br>
028 * CardAgents requires persistent sequence number<br>
029 * Sequencer interface isolate from particular DB implementations
030 */
031public interface Sequencer {
032    int get(String counterName);
033    int get(String counterName, int add);
034    int set(String counterName, int value);
035}