01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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;
22:
23: import com.db4o.foundation.*;
24:
25: /**
26: * root of the reflection implementation API.
27: * <br><br>The open reflection interface is supplied to allow to implement
28: * reflection functionality on JDKs that do not come with the
29: * java.lang.reflect.* package.<br><br>
30: * Use {@link com.db4o.config.Configuration#reflectWith Db4o.configure().reflectWith(IReflect reflector)}
31: * to register the use of your implementation before opening database
32: * files.
33: */
34: public interface Reflector extends DeepClone {
35:
36: /**
37: * returns an ReflectArray object, the equivalent to java.lang.reflect.Array.
38: */
39: public ReflectArray array();
40:
41: /**
42: * specifiy whether parameterized Constructors are supported.
43: * <br><br>The support of Constructors is optional. If Constructors
44: * are not supported, every persistent class needs a public default
45: * constructor with zero parameters.
46: */
47: public boolean constructorCallsSupported();
48:
49: /**
50: * returns an ReflectClass for a Class
51: */
52: public ReflectClass forClass(Class clazz);
53:
54: /**
55: * returns an ReflectClass class reflector for a class name or null
56: * if no such class is found
57: */
58: public ReflectClass forName(String className);
59:
60: /**
61: * returns an ReflectClass for an object or null if the passed object is null.
62: */
63: public ReflectClass forObject(Object obj);
64:
65: public boolean isCollection(ReflectClass clazz);
66:
67: public void setParent(Reflector reflector);
68:
69: }
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