TxTimeoutReaderFactory


1   /*
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3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10  * the License, or (at your option) any later version.
11  *
12  * This software is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this software; if not, write to the Free
19  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21  */ 
22  package org.jboss.aspects.tx;
23  
24  /**
25   * Obtains the correct mechanism to get hold of a transaction timeout.
26   * Newer versions of JBoss should use the TransactionTimeoutConfiguration interfsce.
27   * For older versions we need to access the TxManager directly
28   * 
29   * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
30   * @version $Revision: 1.1 $
31   */
32  public class TxTimeoutReaderFactory
33  {
34     public static TxTimeoutReader getTxTimeoutReader()
35     {
36        try
37        {
38           Class   clazz = Class.forName("org.jboss.tm.TransactionTimeoutConfiguration");
39           return new TransactionTimeoutConfigurationReader();
40        }
41        catch (ClassNotFoundException   e)
42        {
43        }
44        
45        try
46        {
47           Class   clazz = Class.forName("org.jboss.tm.TxManager");
48           return new TxManagerTimeOutReader();
49        }
50        catch (ClassNotFoundException   e)
51        {
52        }
53        
54        return new NullTransactionTimeoutConfigurationReader();
55     }
56  }
57
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