?? dbconnection.h
字號:
//: C09:DBConnection.h
// From "Thinking in C++, Volume 2", by Bruce Eckel & Chuck Allison.
// (c) 1995-2004 MindView, Inc. All Rights Reserved.
// See source code use permissions stated in the file 'License.txt',
// distributed with the code package available at www.MindView.net.
// Uses a "mixin" class.
#ifndef DBCONNECTION_H
#define DBCONNECTION_H
#include <cassert>
#include <string>
#include "Countable.h"
#include "Database.h"
using std::string;
class DBConnection : public Database, public Countable {
DBConnection(const DBConnection&); // Disallow copy
DBConnection& operator=(const DBConnection&);
protected:
DBConnection(const string& dbStr) throw(DatabaseError)
: Database(dbStr) { open(); }
~DBConnection() { close(); }
public:
static DBConnection*
create(const string& dbStr) throw(DatabaseError) {
DBConnection* con = new DBConnection(dbStr);
con->attach();
assert(con->refCount() == 1);
return con;
}
// Other added functionality as desired...
};
#endif // DBCONNECTION_H ///:~
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -