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Java > Open Source Codes > com > db4o > reflect > jdk > JdkConstructor


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.reflect.jdk;
22
23 import java.lang.reflect.*;
24
25 import com.db4o.*;
26 import com.db4o.reflect.*;
27
28 /**
29  * Reflection implementation for Constructor to map to JDK reflection.
30  */
31 public class JdkConstructor implements ReflectConstructor{
32     
33     private final Reflector reflector;
34     private final Constructor constructor;
35     
36     public JdkConstructor(Reflector reflector_, Constructor constructor_){
37         reflector = reflector_;
38         constructor = constructor_;
39     }
40     
41     public ReflectClass[] getParameterTypes(){
42         return JdkReflector.toMeta(reflector, constructor.getParameterTypes());
43     }
44     
45     public void setAccessible(){
46         Platform4.setAccessible(constructor);
47     }
48     
49     public Object JavaDoc newInstance(Object JavaDoc[] parameters){
50         try {
51             Object JavaDoc obj = constructor.newInstance(parameters);
52             if(DTrace.enabled){
53                 DTrace.NEW_INSTANCE.log(System.identityHashCode(obj));
54             }
55             return obj;
56         } catch (Exception JavaDoc e) {
57             return null;
58         }
59     }
60 }
61
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