KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jboss > ejb3 > cache > tree > StatefulEvictionPolicy


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.ejb3.cache.tree;
23
24 import java.util.Map JavaDoc;
25
26 import org.jboss.cache.Fqn;
27 import org.jboss.cache.Node;
28 import org.jboss.ejb3.stateful.StatefulBeanContext;
29 import org.jboss.logging.Logger;
30
31 /**
32  * Comment
33  *
34  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
35  * @deprecated Use direct JBossCache passivation now.
36  * @version $Revision: 45098 $
37  */
38 public class StatefulEvictionPolicy extends PassivationEvictionPolicy
39 {
40    private static final Logger log = Logger.getLogger(StatefulEvictionPolicy.class);
41
42    public StatefulEvictionPolicy()
43    {
44       super();
45    }
46
47    public void evict(Fqn fqn) throws Exception JavaDoc
48    {
49       // never allow root node to be evicted
50 if (fqn.size() == 2)
51       {
52          StatefulBeanContext bean = (StatefulBeanContext) cache_.get(fqn, "bean");
53          
54          if (bean == null)
55          {
56             super.evict(fqn);
57             return;
58          }
59          synchronized (bean)
60          {
61             if (bean.inUse)
62             {
63                bean.markedForPassivation = true;
64                super.evict(fqn);
65                return;
66             }
67             super.evict(fqn);
68          }
69       }
70    }
71 }
72
Popular Tags