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Java > Open Source Codes > com > caucho > amber > manager > AmberEntityManagerFactory


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.amber.manager;
31
32 import javax.persistence.EntityManager;
33 import javax.persistence.EntityManagerFactory;
34 import java.util.Map JavaDoc;
35 import java.util.logging.Logger JavaDoc;
36
37 /**
38  * Amber's EntityManagerFactory container.
39  */
40 public class AmberEntityManagerFactory implements EntityManagerFactory {
41   private static final Logger JavaDoc log
42     = Logger.getLogger(AmberEntityManagerFactory.class.getName());
43
44   private AmberPersistenceUnit _unit;
45   private boolean _isOpen = true;
46
47   AmberEntityManagerFactory(AmberPersistenceUnit unit)
48   {
49     _unit = unit;
50   }
51
52   /**
53    * Create a new EntityManager with TRANSACTION type.
54    */
55   public EntityManager createEntityManager()
56   {
57     return createEntityManager(null);
58   }
59
60   /**
61    * Create a new EntityManager with the given properties.
62    */
63   public EntityManager createEntityManager(Map JavaDoc map)
64   {
65     return new AmberEntityManager(_unit);
66   }
67
68   /**
69    * Close the factory an any resources.
70    */
71   public void close()
72   {
73     _isOpen = false;
74   }
75
76   /**
77    * Returns true if the factory is open.
78    */
79   public boolean isOpen()
80   {
81     return _isOpen;
82   }
83
84   public String JavaDoc toString()
85   {
86     return "AmberEntityManagerFactory[" + _unit.getName() + "]";
87   }
88 }
89
90
91
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