RemoveOnlyWithoutExceptionInterceptor


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: RemoveOnlyWithoutExceptionInterceptor.java 700 2006-06-21 09:54:21Z benoitf $
23   * --------------------------------------------------------------------------
24   */
25  
26  package org.objectweb.easybeans.container.session.stateful.interceptors;
27  
28  import org.objectweb.easybeans.api.EasyBeansInterceptor;
29  import org.objectweb.easybeans.api.EasyBeansInvocationContext;
30  
31  /**
32   * This class manages the removal of the stateful session bean but only if there was no exception.
33   * @author Florent Benoit
34   */
35  public class RemoveOnlyWithoutExceptionInterceptor extends AbsRemoveInterceptor  implements EasyBeansInterceptor {
36  
37      /**
38       * Remove the current bean.
39       * @param invocationContext context with useful attributes on the current
40       *        invocation
41       * @return result of the next invocation (to chain interceptors)
42       * @throws Exception if interceptor fails
43       * @see <a HREF="http://www.jcp.org/en/jsr/detail?id=220">EJB 3.0
44       *      specification ?12.6.1</a>
45       */
46      public Object   intercept(final EasyBeansInvocationContext invocationContext) throws Exception   {
47          // Object that will store the result of the proceed() method
48          Object   returnObject = null;
49  
50          // invoke the chain
51          returnObject = invocationContext.proceed();
52  
53          // if there was no error, remove current bean
54          // No remove in case of exception
55          remove(invocationContext);
56  
57          // return invocation chain value
58          return returnObject;
59      }
60  
61  
62  }
63
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