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Java > Open Source Codes > com > caucho > config > j2ee > FieldInject


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.config.j2ee;
31
32 import com.caucho.config.ConfigException;
33 import com.caucho.util.L10N;
34
35 import java.lang.reflect.Field JavaDoc;
36 import java.util.logging.Logger JavaDoc;
37
38
39 public class FieldInject extends AccessibleInject {
40   private static final Logger JavaDoc log
41     = Logger.getLogger(FieldInject.class.getName());
42   private static final L10N L = new L10N(FieldInject.class);
43
44   private Field JavaDoc _field;
45
46   FieldInject(Field JavaDoc field)
47   {
48     _field = field;
49     _field.setAccessible(true);
50   }
51
52   String JavaDoc getName()
53   {
54     return _field.getName();
55   }
56
57   Class JavaDoc getType()
58   {
59     return _field.getType();
60   }
61
62   void inject(Object JavaDoc bean, Object JavaDoc value)
63     throws ConfigException
64   {
65     try {
66       if (! _field.getType().isAssignableFrom(value.getClass())) {
67     throw new ConfigException(L.l("Resource type {0} is not assignable to field '{1}' of type {2}.",
68                       value.getClass().getName(),
69                       _field.getName(),
70                       _field.getType().getName()));
71       }
72
73       _field.set(bean, value);
74     } catch (RuntimeException JavaDoc e) {
75       throw e;
76     } catch (Exception JavaDoc e) {
77       throw new ConfigException(e);
78     }
79   }
80 }
81
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