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/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef DATABASE_HPP
#define DATABASE_HPP
#include <string>
#include <sqlite3.h>
#include <log4cxx/logger.h>
namespace usdx
{
/**
* Abstract base class for all sqlite databases.
*/
class Database
{
private:
static log4cxx::LoggerPtr log;
protected:
/**
* Internal reference to the sqlite database handle of the open
* sqlite database.
*/
sqlite3 *database;
Database(std::string filename);
virtual ~Database(void);
public:
/**
* Wrapper around the sqlite_prepare_v2 function with propper
* logging and exception throwing on error.
*
* @param sqlStatement SQL Statement for preparing to
* sqlite3_stmt
* @return Pointer to a sqlite3_stmt used for binding
* parameters and executing the statement. Need to be freed
* with sqlite3_finalize.
*/
sqlite3_stmt *sqlite_prepare(const std::wstring sqlStatement);
/**
* Just a quick alias for sqlite_prepare, sqlite3_step and
* sqlite3_finalize.
*/
void sqlite_exec(const std::wstring sqlStatement);
/**
* Check if the given table exists in the database.
*
* @param table Name to check if exists
* @return true, if table exists, false if not
*/
const bool sqlite_table_exists(const std::wstring table);
/**
* Check if the given table has the given column by name.
*
* @param table Table to examine
* @param column Name of the column to check if exists
* @return true, if column exists in that table, false if not
*/
const bool sqlite_table_contains_column(const std::wstring table, const std::wstring column);
/**
* Queries the user version from the sqlite database. This is a
* free settable additional field to identify the version of the
* schemata in the database.
*
* @see set_version(const int version)
* @return Value of the user_version setting of the sqlite
* database
*/
const int get_version(void);
/**
* Set the user version of the database.
*
* @see get_version(void)
* @param version Current scheme version.
*/
void set_version(const int version);
};
};
#endif
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