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Java > Open Source Codes > org > apache > geronimo > transaction > manager > TransactionManagerImplGBean


1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 package org.apache.geronimo.transaction.manager;
19
20 import java.util.ArrayList JavaDoc;
21 import java.util.Collection JavaDoc;
22 import java.util.List JavaDoc;
23 import javax.transaction.xa.XAException JavaDoc;
24
25 import org.apache.geronimo.gbean.GBeanInfo;
26 import org.apache.geronimo.gbean.GBeanInfoBuilder;
27 import org.apache.geronimo.gbean.ReferenceCollection;
28 import org.apache.geronimo.gbean.ReferenceCollectionEvent;
29 import org.apache.geronimo.gbean.ReferenceCollectionListener;
30 import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
31
32 /**
33  * Simple implementation of a transaction manager.
34  *
35  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
36  */
37 public class TransactionManagerImplGBean extends TransactionManagerImpl {
38
39     /**
40      * TODO NOTE!!! this should be called in an unspecified transaction context, but we cannot enforce this restriction!
41      */
42     public TransactionManagerImplGBean(int defaultTransactionTimeoutSeconds, XidFactory xidFactory, TransactionLog transactionLog, Collection JavaDoc resourceManagers) throws XAException JavaDoc {
43         super(defaultTransactionTimeoutSeconds, xidFactory, transactionLog, resourceManagers);
44     }
45
46
47     /**
48      * We can track as resources are added into the geronimo kernel.
49      *
50      * @param resourceManagers
51      * @return the original list of resources.
52      */
53     protected List JavaDoc watchResourceManagers(Collection JavaDoc resourceManagers) {
54         if( resourceManagers instanceof ReferenceCollection ) {
55             List JavaDoc copy;
56             synchronized (resourceManagers) {
57                 copy = new ArrayList JavaDoc(resourceManagers);
58                     ((ReferenceCollection)resourceManagers).addReferenceCollectionListener(new ReferenceCollectionListener() {
59                     public void memberAdded(ReferenceCollectionEvent event) {
60                         ResourceManager resourceManager = (ResourceManager) event.getMember();
61                         recoverResourceManager(resourceManager);
62                     }
63
64                     public void memberRemoved(ReferenceCollectionEvent event) {
65                     }
66
67                 });
68             }
69             return copy;
70         } else {
71             return super.watchResourceManagers(resourceManagers);
72         }
73     }
74
75     public static final GBeanInfo GBEAN_INFO;
76
77     static {
78         GBeanInfoBuilder infoBuilder = GBeanInfoBuilder.createStatic(TransactionManagerImplGBean.class, NameFactory.TRANSACTION_MANAGER);
79
80         infoBuilder.addAttribute("defaultTransactionTimeoutSeconds", int.class, true);
81         infoBuilder.addReference("XidFactory", XidFactory.class, NameFactory.XID_FACTORY);
82         infoBuilder.addReference("TransactionLog", TransactionLog.class, NameFactory.TRANSACTION_LOG);
83         infoBuilder.addReference("ResourceManagers", ResourceManager.class);//two kinds of things, so specify the type in each pattern.
84
85         infoBuilder.setConstructor(new String JavaDoc[]{
86                 "defaultTransactionTimeoutSeconds",
87                 "XidFactory",
88                 "TransactionLog",
89                 "ResourceManagers"});
90
91         GBEAN_INFO = infoBuilder.getBeanInfo();
92     }
93
94
95     public static GBeanInfo getGBeanInfo() {
96         return GBEAN_INFO;
97     }
98 }
99
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