OnePhase.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors 
 * as indicated by the @author tags. 
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors. 
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A 
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
 * MA  02110-1301, USA.
 * 
 * (C) 2005-2006,
 * @author JBoss Inc.
 */
/*
 * Copyright (C) 2004,
 *
 * Arjuna Technologies Limited,
 * Newcastle upon Tyne,
 * Tyne and Wear,
 * UK.
 *
 * $Id: OnePhase.java 2342 2006-03-30 13:06:17Z  $
 */

package com.hp.mwtests.ts.arjuna.resources;

import java.io.IOException;

import com.arjuna.ats.arjuna.coordinator.OnePhaseResource;
import com.arjuna.ats.arjuna.coordinator.TwoPhaseOutcome;
import com.arjuna.ats.arjuna.state.InputObjectState;
import com.arjuna.ats.arjuna.state.OutputObjectState;

public class OnePhase implements OnePhaseResource
{

    public static final int PREPARED = 0;
    public static final int COMMITTED = 1;
    public static final int ROLLEDBACK = 2;

    /**
     * Return values from TwoPhaseOutcome to indicate success or failure.
     */

    public int commit()
    {
        if (_status == ROLLEDBACK) {
            return TwoPhaseOutcome.FINISH_ERROR;
        }

        _status = COMMITTED;
        return TwoPhaseOutcome.FINISH_OK;
    }

    /**
     * Return values from TwoPhaseOutcome to indicate success or failure.
     */

    public int rollback()
    {
        if (_status == COMMITTED) {
            return TwoPhaseOutcome.FINISH_ERROR;
        }

        _status = ROLLEDBACK;
        return TwoPhaseOutcome.FINISH_OK;
    }

    public void pack(OutputObjectState os) throws IOException
    {
    }

    public void unpack(InputObjectState os) throws IOException
    {
    }

    public final int status()
    {
        return _status;
    }

    private int _status = PREPARED;

}