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Java > Open Source Codes > com > db4o > config > annotations > reflect > NoArgsFieldConfiguratorFactory


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */

21 package com.db4o.config.annotations.reflect;
22
23 import java.lang.annotation.*;
24 import java.lang.reflect.*;
25
26
27 /**
28  * @exclude
29  */

30 public class NoArgsFieldConfiguratorFactory implements Db4oConfiguratorFactory {
31     private Constructor _constructor;
32
33     public NoArgsFieldConfiguratorFactory(Class JavaDoc configuratorClass) throws NoSuchMethodException JavaDoc {
34         _constructor=configuratorClass.getConstructor(new Class JavaDoc[]{String JavaDoc.class,String JavaDoc.class});
35     }
36
37     public Db4oConfigurator configuratorFor(AnnotatedElement element, Annotation annotation) {
38         try {
39             if(!(element instanceof Field)) {
40                 return null;
41             }
42             Field field=(Field)element;
43             String JavaDoc className=field.getDeclaringClass().getName();
44             String JavaDoc fieldName=field.getName();
45             return (Db4oConfigurator)_constructor.newInstance(new Object JavaDoc[]{className,fieldName});
46         } catch (Exception JavaDoc exc) {
47             return null;
48         }
49     }
50 }
51
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