org.ow2.easybeans.transaction.JTransactionManager Maven / Gradle / Ivy
/**
* EasyBeans
* Copyright (C) 2006-2009 Bull S.A.S.
* Contact: [email protected]
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY 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 along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: JTransactionManager.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.transaction;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.transaction.TransactionManager;
import org.ow2.easybeans.component.itf.TMComponent;
/**
* Allows to get a transaction manager.
* @author Florent Benoit
*/
public final class JTransactionManager {
/**
* Utility class, no public constructor.
*/
private JTransactionManager() {
}
/**
* Internal tm.
*/
private static TransactionManager tm = null;
/**
* Allow to get a transaction manager.
* @return a transaction manager.
*/
public static TransactionManager getTransactionManager() {
if (tm != null) {
return tm;
}
// Needs to be initialized
init();
return tm;
}
/**
* Init the Transaction manager.
*/
public static void init() {
// get it.
try {
tm = (TransactionManager) new InitialContext().lookup(TMComponent.JNDI_NAME);
} catch (NamingException e) {
throw new IllegalStateException("Cannot get transaction manager", e);
}
}
}