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.transaction.participant;
020
021import org.jpos.core.Configurable;
022import org.jpos.core.Configuration;
023import org.jpos.transaction.Context;
024import org.jpos.transaction.TransactionParticipant;
025
026import java.io.Serializable;
027
028/**
029 * Transaction participant that records a single configurable
030 * {@link Context#checkPoint(String)} marker during prepare.
031 */
032public class CheckPoint implements TransactionParticipant, Configurable  {
033    /** Default constructor; no instance state to initialise. */
034    public CheckPoint() {}
035    Configuration cfg;
036    public int prepare (long id, Serializable o) {
037        if (o instanceof Context) 
038            ((Context)o).checkPoint (cfg.get ("message", "checkpoint"));
039
040        return PREPARED | NO_JOIN | READONLY;
041    }
042    public void commit (long id, Serializable o) { }
043    public void abort  (long id, Serializable o) { }
044    public void setConfiguration (Configuration cfg) {
045        this.cfg = cfg;
046    }
047}
048