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Java > Open Source Codes > org > objectweb > speedo > tutorial > TutorialHelper


1 /**
2  * Speedo: an implementation of JDO compliant personality on top of JORM generic
3  * I/O sub-system.
4  * Copyright (C) 2001-2004 France Telecom R&D
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  *
21  *
22  * Contact: speedo@objectweb.org
23  *
24  */
25
26 package org.objectweb.speedo.tutorial;
27
28 import java.io.FileInputStream JavaDoc;
29 import java.io.IOException JavaDoc;
30 import java.util.Properties JavaDoc;
31
32 import javax.jdo.JDOHelper;
33 import javax.jdo.PersistenceManagerFactory;
34
35 /**
36  * This class enables to get a persistence manager factory from the speedo.properties file.
37  * @author Y.Bersihand
38  */
39 public class TutorialHelper {
40
41     protected static PersistenceManagerFactory pmf = null;
42
43     public TutorialHelper(String JavaDoc propertiesFileName)throws IOException JavaDoc {
44         Properties JavaDoc p = new Properties JavaDoc();
45         p.load(new FileInputStream JavaDoc(propertiesFileName));
46         p.setProperty("org.objectweb.speedo.mappingStructure","DELETE_DATA");
47         pmf = JDOHelper.getPersistenceManagerFactory(p);
48         System.out.println("PersistenceManagerFactory instanciated ("+ pmf.getConnectionURL() + ")");
49     }
50     
51     public PersistenceManagerFactory getPMF(){
52         return pmf;
53     }
54 }
55
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