KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > ojb > odmg > TxManagerFactory


1 package org.apache.ojb.odmg;
2
3 /* Copyright 2002-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * 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 import org.apache.ojb.broker.util.factory.ConfigurableFactory;
19
20 /**
21  * The TxManagerFactory is responsible for creating instances of
22  * TransactionManagers. Set the "OJBTxManagerClass" property in
23  * OJB.properties in order to install a new TxManagerFactory
24  *
25  * @author <a HREF="mailto:mattbaird@yahoo.com">Matthew Baird</a>
26  * @version $Id: TxManagerFactory.java,v 1.6.2.1 2005/12/21 22:29:21 tomdz Exp $
27  */
28 public class TxManagerFactory extends ConfigurableFactory
29 {
30     private static TxManagerFactory singleton;
31     private OJBTxManager manager;
32
33     static
34     {
35         singleton = new TxManagerFactory();
36     }
37
38     private TxManagerFactory()
39     {
40         manager = (OJBTxManager) this.createNewInstance();
41     }
42
43     private OJBTxManager getManager()
44     {
45         return manager;
46     }
47
48     public synchronized static OJBTxManager instance()
49     {
50         return singleton.getManager();
51     }
52
53     protected String JavaDoc getConfigurationKey()
54     {
55         return "OJBTxManagerClass";
56     }
57 }
58
Popular Tags