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Java > Open Source Codes > org > jboss > injection > EntityManagerFactoryFieldInjector


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.injection;
23
24 import java.lang.reflect.Field JavaDoc;
25 import org.jboss.ejb3.BeanContext;
26 import org.jboss.logging.Logger;
27
28 /**
29  * Comment
30  *
31  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
32  * @version $Revision: 46510 $
33  */
34 public class EntityManagerFactoryFieldInjector implements Injector, PojoInjector
35 {
36    private static final Logger log = Logger.getLogger(EntityManagerFactoryFieldInjector.class);
37    private Field JavaDoc field;
38    private Object JavaDoc factory;
39
40    public EntityManagerFactoryFieldInjector(Field JavaDoc field, Object JavaDoc factory)
41    {
42       this.field = field;
43       this.field.setAccessible(true);
44       this.factory = factory;
45    }
46
47    public void inject(BeanContext ctx)
48    {
49       inject(ctx, ctx.getInstance());
50    }
51    
52    public void inject(BeanContext ctx, Object JavaDoc instance)
53    {
54       inject(instance);
55    }
56
57    public void inject(Object JavaDoc instance)
58    {
59       try
60       {
61          field.set(instance, factory);
62       }
63       catch (IllegalAccessException JavaDoc e)
64       {
65          throw new RuntimeException JavaDoc(e); //To change body of catch statement use Options | File Templates.
66 }
67       catch (IllegalArgumentException JavaDoc e)
68       {
69          throw new RuntimeException JavaDoc("Failed in setting EntityManager on setter field: " + field.toString());
70       }
71    }
72
73    public Class JavaDoc getInjectionClass()
74    {
75       return field.getType();
76    }
77
78 }
79
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