1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Copyright (C) 2010-2011 Max Kellermann <max@duempel.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef JAVA_CLASS_HXX
#define JAVA_CLASS_HXX
#include "Ref.hxx"
#include <assert.h>
namespace Java {
/**
* Wrapper for a local "jclass" reference.
*/
class Class : public Java::LocalRef<jclass> {
public:
Class(JNIEnv *env, jclass cls)
:LocalRef<jclass>(env, cls) {}
Class(JNIEnv *env, const char *name)
:LocalRef<jclass>(env, env->FindClass(name)) {}
};
/**
* Wrapper for a global "jclass" reference.
*/
class TrivialClass : public TrivialRef<jclass> {
public:
void Find(JNIEnv *env, const char *name) {
assert(env != nullptr);
assert(name != nullptr);
jclass cls = env->FindClass(name);
assert(cls != nullptr);
Set(env, cls);
env->DeleteLocalRef(cls);
}
bool FindOptional(JNIEnv *env, const char *name) {
assert(env != nullptr);
assert(name != nullptr);
jclass cls = env->FindClass(name);
if (cls == nullptr) {
env->ExceptionClear();
return false;
}
Set(env, cls);
env->DeleteLocalRef(cls);
return true;
}
};
}
#endif
|