EMFactoryAccess00Interceptor


1   /**
2    * EasyBeans
3    * Copyright (C) 2006 Bull S.A.S.
4    * Contact: easybeans@objectweb.org
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2.1 of the License, or any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   * USA
20   *
21   * --------------------------------------------------------------------------
22   * $Id: EMFactoryAccess00Interceptor.java 821 2006-07-04 13:28:52Z studzine $
23   * --------------------------------------------------------------------------
24   */
25  package org.objectweb.easybeans.tests.common.interceptors.business.access;
26  
27  
28  import javax.annotation.Resource;
29  import javax.ejb.SessionContext  ;
30  import javax.interceptor.AroundInvoke;
31  import javax.interceptor.InvocationContext;
32  import javax.transaction.UserTransaction  ;
33  
34  import org.objectweb.easybeans.tests.common.resources.EMFactoryTester;
35  
36  /**
37   * Interceptor used to access an EntityManager.
38   * @author Eduardo Studzinski Estima de Castro
39   * @author Gisele Pinheiro Souza
40   *
41   */
42  public class EMFactoryAccess00Interceptor extends EMFactoryTester{
43  
44      /**
45       * SessionContext.
46       */
47      @Resource
48      private SessionContext   ctx;
49  
50      /**
51       * Intercepts the method and tries to access an entity bean using the entity manager.
52       * @param ic contains attributes of invocation
53       * @return method's invocation result
54       * @throws Exception if invocation fails
55       */
56      @SuppressWarnings  ("unused")
57      @AroundInvoke
58      protected Object   intercept(final InvocationContext ic) throws Exception   {
59          UserTransaction   utx;
60          try{
61              utx = ctx.getUserTransaction();
62              utx.begin();
63          }catch(Exception   e){
64              utx = null;
65          }
66  
67          super.access00();
68  
69          if (utx != null){
70              utx.commit();
71          }
72          return ic.proceed();
73      }
74  }
75
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