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Java > Open Source Codes > com > caucho > ejb > AbstractEntityBean


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.ejb;
30
31 import javax.ejb.EJBException JavaDoc;
32 import javax.ejb.EntityBean JavaDoc;
33 import javax.ejb.EntityContext JavaDoc;
34 import javax.ejb.RemoveException JavaDoc;
35
36 /**
37  * Convenience class implementing the EntityBean methods as stubs.
38  */
39 abstract public class AbstractEntityBean implements EntityBean JavaDoc {
40   // the entity context
41 protected EntityContext JavaDoc _entityContext;
42
43   /**
44    * Sets the entity context.
45    */
46   public void setEntityContext(EntityContext JavaDoc entityContext)
47     throws EJBException JavaDoc
48   {
49     _entityContext = entityContext;
50   }
51
52   /**
53    * Returns the entity context.
54    */
55   public EntityContext JavaDoc getEntityContext()
56   {
57     return _entityContext;
58   }
59
60   /**
61    * Unsets the entity context when it's taken out of use.
62    */
63   public void unsetEntityContext()
64     throws EJBException JavaDoc
65   {
66     _entityContext = null;
67   }
68
69   /**
70    * Called when the entity bean is taken from the pool and bound to
71    * a specific underlying entity.
72    */
73   public void ejbActivate() throws EJBException JavaDoc
74   {
75   }
76   
77   /**
78    * Called when the entity bean is about to be returned to the pool.
79    */
80   public void ejbPassivate() throws EJBException JavaDoc
81   {
82   }
83   
84   /**
85    * Called to resynchronize the entity bean with the backing store.
86    */
87   public void ejbLoad() throws EJBException JavaDoc
88   {
89   }
90   
91   /**
92    * Called to save any changes to the backing store
93    */
94   public void ejbStore() throws EJBException JavaDoc
95   {
96   }
97   
98   public void ejbRemove() throws RemoveException JavaDoc
99   {
100   }
101 }
102
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