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.internal;
22:
23: import java.net.*;
24:
25: import com.db4o.config.*;
26: import com.db4o.config.annotations.reflect.*;
27: import com.db4o.ext.*;
28: import com.db4o.reflect.*;
29: import com.db4o.reflect.jdk.*;
30:
31: class JDK_5 extends JDK_1_4 {
32:
33: private static final String ENUM_CLASSNAME = "java.lang.Enum";
34:
35: private static ReflectClass enumClass;
36:
37: public Config4Class extendConfiguration(ReflectClass clazz,
38: Configuration config, Config4Class classConfig) {
39: Class javaClazz = JdkReflector.toNative(clazz);
40: if (javaClazz == null) {
41: return classConfig;
42: }
43: try {
44: ConfigurationIntrospector instrospetor = new ConfigurationIntrospector(
45: javaClazz, config, classConfig);
46: return instrospetor.apply();
47: } catch (Exception exc) {
48: throw new Db4oException(exc);
49: }
50: }
51:
52: public boolean isConnected(Socket socket) {
53: if (socket == null) {
54: return false;
55: }
56: if (!socket.isConnected()) {
57: return false;
58: }
59: return !socket.isClosed();
60: }
61:
62: boolean isEnum(Reflector reflector, ReflectClass claxx) {
63:
64: if (claxx == null) {
65: return false;
66: }
67:
68: if (enumClass == null) {
69: try {
70: enumClass = reflector.forClass(Class
71: .forName(ENUM_CLASSNAME));
72: } catch (ClassNotFoundException e) {
73: return false;
74: }
75: }
76:
77: return enumClass.isAssignableFrom(claxx);
78: }
79:
80: }
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