blob: acaae5719b1dad08e54bc405594777e7c1c295fe (
plain)
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
|
// Author: Eray Ozkural (exa) <erayo@cs.bilkent.edu.tr>, (c) 2002
//
// Copyright: GNU LGPL: http://www.gnu.org/licenses/lgpl.html
#ifndef KDbt_Interface
#define KDbt_Interface
#include <db_cxx.h>
#include <qdatastream.h>
#include <qbuffer.h>
#include "kbuffer.h"
/**A generic wrapper for "database thang" class that abstracts binary streaming operations.
*@author Eray Ozkural (exa)
*/
template <typename T>
class KDbt : public Dbt {
public:
/* assume streaming operators on QDataStream
QDataStream & operator>> ( QDataStream& >>, T &);
QDataStream & operator<< ( QDataStream& >>, T &);
*/
KDbt() {
}
/** construct a Dbt from obj */
KDbt(const T& obj) {
set(obj);
}
// operator Dbt() {
// return Dbt(thang.data(), thang.size());
// }
/** set "thang" to the contents of obj */
void set(const T& obj) {
// KBuffer buffer(thang);
QDataStream ds(&thang);
ds << obj;
// std::cerr << "thang size " << thang.size() << endl;
// buffer.close();
// set_data(thang.data());
// set_size(buffer.size());
set_data(thang.data());
set_size(thang.size());
}
void get(T& obj) {
QByteArray buffer;
buffer.setRawData((char*)get_data(),get_size());
QDataStream ds(buffer,IO_ReadWrite);
ds >> obj;
buffer.resetRawData((char*)get_data(),get_size());
}
private:
/** Internal data */
// QByteArray thang;
KBuffer thang;
};
#endif
|
