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Java > Open Source Codes > org > objectweb > easybeans > tests > common > resources > EMFactoryTester


1 /**
2  * EasyBeans
3  * Copyright (C) 2006 Bull S.A.S.
4  * Contact: easybeans@objectweb.org
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 2.1 of the License, or 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
19  * USA
20  *
21  * --------------------------------------------------------------------------
22  * $Id: EMFactoryTester.java 806 2006-07-03 12:00:45Z studzine $
23  * --------------------------------------------------------------------------
24  */
25 package org.objectweb.easybeans.tests.common.resources;
26
27 import javax.persistence.EntityManager;
28 import javax.persistence.EntityManagerFactory;
29 import javax.persistence.PersistenceUnit;
30
31 import org.objectweb.easybeans.log.JLog;
32 import org.objectweb.easybeans.log.JLogFactory;
33
34 /**
35  * EntityManagerFactory tester.
36  * @author Eduardo Studzinski Estima de Castro
37  * @author Gisele Pinheiro Souza
38  */
39 public class EMFactoryTester {
40
41     /**
42      * Logger.
43      */
44     private static JLog logger = JLogFactory.getLog(EMFactoryTester.class);
45
46     /**
47      * Name.
48      */
49     public static final String JavaDoc NAME = "Toto";
50
51     /**
52      * Entity Factory.
53      */
54     @PersistenceUnit(unitName = "testEntity00")
55     private EntityManagerFactory entityFactory = null;
56
57     /**
58      * Default Constructor.
59      */
60     public EMFactoryTester() {
61     }
62
63     /**
64      * Tests an EntityFactoryManager access.
65      * @throws Exception if a problem occurs.
66      */
67     protected void access00() throws Exception JavaDoc {
68         checkInstance(entityFactory, NAME);
69     }
70
71     /**
72      * Checks if an entity manager factory reference is working well.
73      * @param ref Entity Manager Factory
74      * @param name row name
75      * @throws Exception if a problem occurs
76      */
77     public static void checkInstance(final EntityManagerFactory ref, final String JavaDoc name) throws Exception JavaDoc {
78         EntityManager entityManager = ref.createEntityManager();
79         logger.debug("Checking an entity manager factory reference.");
80
81         if (entityManager == null) {
82             logger.debug("The method createEntityManager() returned null.");
83             throw new IllegalStateException JavaDoc("Error checking an entity manager factory reference.");
84         }
85
86         EntityManagerTester.checkInstance(entityManager, name);
87
88         logger.debug("Entity manager factory reference is working properly.");
89     }
90 }
91
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