01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * 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.*;
33: import javax.persistence.spi.*;
34:
35: import com.caucho.amber.cfg.*;
36: import com.caucho.webbeans.component.*;
37:
38: /**
39: * The Entity manager webbeans component
40: */
41: public class EntityManagerFactoryComponent extends FactoryComponent {
42: private PersistenceProvider _provider;
43: private PersistenceUnitConfig _unit;
44: private String _unitName;
45: private EntityManagerFactory _factory;
46:
47: public EntityManagerFactoryComponent(PersistenceProvider provider,
48: PersistenceUnitConfig unit, String unitName,
49: EntityManagerFactory factory) {
50: super (EntityManagerFactory.class, unitName);
51:
52: _provider = provider;
53: _unit = unit;
54: _unitName = unitName;
55: _factory = factory;
56:
57: // jpa/2110
58: if (_factory == null)
59: _factory = _provider.createContainerEntityManagerFactory(
60: _unit, null);
61: }
62:
63: @Override
64: public Object create() {
65: return _factory;
66: }
67: }
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