KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > ejb > protocol > LocalHomeSkeletonWrapper


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.protocol;
30
31 import javax.ejb.EJBLocalHome JavaDoc;
32 import javax.naming.Context JavaDoc;
33 import javax.naming.InitialContext JavaDoc;
34 import java.io.ObjectStreamException JavaDoc;
35 import java.io.Serializable JavaDoc;
36
37 /**
38  * Special class for dealing with serialization.
39  */
40 class LocalHomeSkeletonWrapper implements Serializable JavaDoc {
41   protected String JavaDoc serverId;
42
43   /**
44    * Null-arg constructor for serialization
45    */
46   public LocalHomeSkeletonWrapper()
47   {
48   }
49
50   /**
51    * Constructor for the HomeSkeleton
52    *
53    * @param localId the local id for this home object.
54    */
55   public LocalHomeSkeletonWrapper(String JavaDoc serverId)
56   {
57     this.serverId = serverId;
58   }
59
60   /**
61    * Replace with the real skeleton.
62    */
63   public Object JavaDoc readResolve()
64     throws ObjectStreamException JavaDoc
65   {
66     try {
67       Context JavaDoc cmp = (Context JavaDoc) new InitialContext JavaDoc().lookup("java:comp/env/cmp");
68       String JavaDoc name = serverId;
69       if (serverId.startsWith("/"))
70         name = serverId.substring(1);
71       
72       EJBLocalHome JavaDoc home = (EJBLocalHome JavaDoc) cmp.lookup(name);
73         
74       if (home == null)
75         throw new ObjectExceptionWrapper("no local ejb " + serverId);
76       
77       return home;
78     } catch (Exception JavaDoc e) {
79       throw new ObjectExceptionWrapper(e);
80     }
81   }
82 }
83
84
85
Popular Tags