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Java > Open Source Codes > org > openejb > core > stateful > EncUserTransaction


1 /**
2  * Redistribution and use of this software and associated documentation
3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
5  *
6  * 1. Redistributions of source code must retain copyright
7  * statements and notices. Redistributions must also contain a
8  * copy of this document.
9  *
10  * 2. Redistributions in binary form must reproduce the
11  * above copyright notice, this list of conditions and the
12  * following disclaimer in the documentation and/or other
13  * materials provided with the distribution.
14  *
15  * 3. The name "Exolab" must not be used to endorse or promote
16  * products derived from this Software without prior written
17  * permission of Exoffice Technologies. For written permission,
18  * please contact info@exolab.org.
19  *
20  * 4. Products derived from this Software may not be called "Exolab"
21  * nor may "Exolab" appear in their names without prior written
22  * permission of Exoffice Technologies. Exolab is a registered
23  * trademark of Exoffice Technologies.
24  *
25  * 5. Due credit should be given to the Exolab Project
26  * (http://www.exolab.org/).
27  *
28  * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32  * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  *
41  * Copyright 1999 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: EncUserTransaction.java 1096 2004-03-26 21:41:16Z dblevins $
44  */
45 package org.openejb.core.stateful;
46
47 import javax.naming.NameNotFoundException JavaDoc;
48
49 import org.openejb.core.Operations;
50 import org.openejb.core.ivm.naming.ObjectReference;
51
52 /*
53   This class is a wrapper for CoreUserTransaction reference in the
54   JNDI ENC of a stateful bean. When the getObject( ) method is invoked the
55   Operation is checked to ensure that its is allowed for the bean's current state.
56 */
57 public class EncUserTransaction extends org.openejb.core.ivm.naming.ENCReference{
58     
59     /*
60     * This constructor take a new CoreUserTransaction object as the object reference
61     */
62     public EncUserTransaction(org.openejb.core.CoreUserTransaction reference){
63         super( new ObjectReference(reference) );
64     }
65     
66     /*
67     * This method is invoked by the ENCReference super class each time its
68     * getObject() method is called within the container system. This checkOperation
69     * method ensures that the stateful bean is in the correct state before the super
70     * class can return the requested reference object.
71     */
72     public void checkOperation(byte operation) throws NameNotFoundException JavaDoc{
73         if(operation == Operations.OP_SET_CONTEXT || operation == Operations.OP_AFTER_COMPLETION || operation == Operations.OP_BEFORE_COMPLETION ){
74             throw new NameNotFoundException JavaDoc("Operation Not Allowed");
75         }
76         
77     }
78     
79 }
80
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