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Java > Open Source Codes > org > jboss > ejb > plugins > lock > NoLock


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.ejb.plugins.lock;
23
24
25 import javax.transaction.Transaction JavaDoc;
26
27 import org.jboss.invocation.Invocation;
28
29 /**
30  * No locking what-so-ever
31  *
32  *
33  * Holds all locks for entity beans, not used for stateful. <p>
34  *
35  * All BeanLocks have a reference count.
36  * When the reference count goes to 0, the lock is released from the
37  * id -> lock mapping.
38  *
39  * @author <a HREF="bill@burkecentral.com">Bill Burke</a>
40  *
41  * @version $Revision: 37459 $
42  *
43  * <p><b>Revisions:</b><br>
44  * <p><b>2001/08/08: billb</b>
45  * <ol>
46  * <li>Initial revision
47  * </ol>
48  */
49 public class NoLock extends BeanLockSupport
50 {
51    /**
52     * Schedule(Invocation)
53     *
54     * Schedule implements a particular policy for scheduling the threads coming in.
55     * There is always the spec required "serialization" but we can add custom scheduling in here
56     *
57     * Synchronizing on lock: a failure to get scheduled must result in a wait() call and a
58     * release of the lock. Schedulation must return with lock.
59     *
60     */
61    public void schedule(Invocation mi)
62       throws Exception JavaDoc
63    {
64       return;
65    }
66
67    public void endTransaction(Transaction JavaDoc transaction)
68    {
69       // complete
70 }
71
72    public void wontSynchronize(Transaction JavaDoc trasaction)
73    {
74       // complete
75 }
76
77    public void endInvocation(Invocation mi)
78    {
79       // complete
80 }
81    
82 }
83
84
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