001 /* 002 Copyright (C) 2001-2003 Lionel Seinturier <Lionel.Seinturier@lip6.fr> 003 004 This program is free software; you can redistribute it and/or modify 005 it under the terms of the GNU Lesser General Public License as 006 published by the Free Software Foundation; either version 2 of the 007 License, or (at your option) any later version. 008 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU Lesser General Public License for more details. 013 014 You should have received a copy of the GNU Lesser General Public License 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ 017 018 package org.objectweb.jac.aspects.distrans; 019 020 import javax.naming.NamingException; 021 022 import org.objectweb.jotm.Jotm; 023 import org.objectweb.jotm.TraceTm; 024 025 /** 026 * Helper class used to retrieve the JOTM singleton instance 027 * used by JAC. 028 * 029 * @author Lionel Seinturier <Lionel.Seinturier@lip6.fr> 030 * @version 1.0 031 */ 032 public class JOTMHelper { 033 034 /** The singleton instance of JOTM. */ 035 private static Jotm jotm; 036 037 public static Jotm get() { 038 039 if ( jotm != null ) 040 return jotm; 041 042 /** 043 * Creates an instance of JOTM with a local transaction factory 044 * which is not bound to a registry. 045 */ 046 try { 047 jotm = new Jotm(true,false); 048 } catch (NamingException ne) { 049 ne.printStackTrace(); 050 System.exit(1); 051 } 052 TraceTm.configure(); 053 054 return jotm; 055 } 056 057 }