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Java > Open Source Codes > com > caucho > ejb > burlap > ObjectStub


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.burlap;
30
31 import com.caucho.ejb.RemoteExceptionWrapper;
32
33 import javax.ejb.EJBHome JavaDoc;
34 import javax.ejb.EJBObject JavaDoc;
35 import javax.ejb.Handle JavaDoc;
36 import javax.ejb.RemoveException JavaDoc;
37 import java.rmi.RemoteException JavaDoc;
38
39 /**
40  * Base class for generated object stubs.
41  */
42 public abstract class ObjectStub extends BurlapStub implements EJBObject JavaDoc {
43   protected transient Handle JavaDoc _handle;
44
45   /*
46   abstract public String getBurlapType();
47   */
48   abstract public String JavaDoc getHessianType();
49   
50   /**
51    * Returns the serializable handle for the remote object
52    */
53   public Handle JavaDoc getHandle()
54     throws RemoteException JavaDoc
55   {
56     if (_handle == null)
57       _handle = new BurlapHandle(_url);
58
59     return _handle;
60   }
61
62   /**
63    * Returns the EJBHome stub for the remote object.
64    */
65   public EJBHome JavaDoc getEJBHome()
66     throws RemoteException JavaDoc
67   {
68     try {
69       return _client.getHomeStub();
70     } catch (Exception JavaDoc e) {
71       throw new RemoteExceptionWrapper(e);
72     }
73   }
74
75   /**
76    * Returns true if the test object is identical to this object.
77    *
78    * @param obj the object to test for identity
79    */
80   public boolean isIdentical(EJBObject JavaDoc obj)
81     throws RemoteException JavaDoc
82   {
83     return getHandle().equals(obj.getHandle()) || _ejb_isIdentical(obj);
84   }
85
86   /**
87    * Remove this object from the server.
88    */
89   public void remove()
90     throws RemoteException JavaDoc, RemoveException JavaDoc
91   {
92     _ejb_remove();
93   }
94
95   /**
96    * For entity beans, returns the primary key
97    */
98   public Object JavaDoc getPrimaryKey()
99     throws RemoteException JavaDoc
100   {
101     // XXX: the primary key could be cached
102 return _ejb_getPrimaryKey();
103   }
104
105   protected EJBHome JavaDoc _ejb_getEJBHome() throws RemoteException JavaDoc
106   {
107     return null;
108   }
109
110   protected boolean _ejb_isIdentical(EJBObject JavaDoc obj) throws RemoteException JavaDoc
111   {
112     return false;
113   }
114
115   protected void _ejb_remove() throws RemoteException JavaDoc, RemoveException JavaDoc
116   {
117   }
118
119   protected Object JavaDoc _ejb_getPrimaryKey() throws RemoteException JavaDoc
120   {
121     return null;
122   }
123 }
124
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