TransactionManager.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) 2002,
 *
 * Hewlett-Packard Arjuna Labs,
 * Newcastle upon Tyne,
 * Tyne and Wear,
 * UK.
 *
 * $Id: TransactionManager.java 2342 2006-03-30 13:06:17Z  $
 */

package com.arjuna.ats.jta;

import javax.naming.InitialContext;

import com.arjuna.ats.jta.common.jtaPropertyManager;
import com.arjuna.ats.jta.logging.jtaLogger;

public class TransactionManager
{
    /**
	 * Retrieve a reference to the transaction manager from the passed in JNDI initial context.
	 * @param ctx The JNDI initial context to lookup the Transaction Manager reference from.
	 * @return The transaction manager bound to the appropriate JNDI context.  Returns null
     * if the transaction manager cannot be found.
     * 
	 */
    public static javax.transaction.TransactionManager transactionManager (InitialContext ctx)
    {
		javax.transaction.TransactionManager transactionManager = null;

		try
		{
			transactionManager = (javax.transaction.TransactionManager)ctx.lookup(jtaPropertyManager.getJTAEnvironmentBean().getTransactionManagerJNDIContext());
		}
		catch (Exception e)
		{
            jtaLogger.i18NLogger.warn_TransactionManager_jndifailure(e);
		}

		return transactionManager;
    }

    /**
     * Retrieve the singleton transaction manager reference.
     * @return The singleton transaction manager.  Can return null if the instantiation failed.
     */
	
    public synchronized static javax.transaction.TransactionManager transactionManager ()
    {
		return jtaPropertyManager.getJTAEnvironmentBean().getTransactionManager();
    }
}