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Java > Open Source Codes > org > jboss > aop > microcontainer > integration > AOPKernelRepository


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.aop.microcontainer.integration;
23
24 import org.jboss.repository.plugins.AbstractKernelRepository;
25 import org.jboss.repository.plugins.InvocationMetaDataCombiner;
26 import org.jboss.repository.plugins.KeyMetaDataCombiner;
27 import org.jboss.repository.plugins.ThreadMetaDataCombiner;
28
29 /**
30  *
31  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
32  * @version $Revision: 44470 $
33  */
34 public class AOPKernelRepository extends AbstractKernelRepository
35 {
36    private volatile static AOPKernelRepository instance;
37    
38    protected AOPKernelRepository() throws Exception JavaDoc
39    {
40       super(
41             new InvocationMetaDataCombiner
42             (
43                new ThreadMetaDataCombiner
44                (
45                   new KeyMetaDataCombiner()
46                ), null
47             )
48          );
49       
50    }
51    
52    public static AOPKernelRepository instance()
53    {
54       try
55       {
56          if (instance == null)
57          {
58             instance = new AOPKernelRepository();
59          }
60          return instance;
61       }
62       catch (Exception JavaDoc e)
63       {
64          throw new RuntimeException JavaDoc(e);
65       }
66    }
67 }
68
69
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