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/*
* Copyright 2005-2013 Fabrice Colin
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SQLITE_BASE_H
#define _SQLITE_BASE_H
#include <string>
#include <vector>
#include <map>
#include <sqlite3.h>
#include "SQLDB.h"
/// A row in a SQLite table.
class SQLiteRow : public SQLRow
{
public:
SQLiteRow(const std::vector<std::string> &rowColumns, unsigned int nColumns);
SQLiteRow(sqlite3_stmt *pStatement, unsigned int nColumns);
virtual ~SQLiteRow();
virtual std::string getColumn(unsigned int nColumn) const;
protected:
std::vector<std::string> m_columns;
sqlite3_stmt *m_pStatement;
};
/// Results extracted from a SQLite database.
class SQLiteResults : public SQLResults
{
public:
SQLiteResults(char **results, unsigned long nRows, unsigned int nColumns);
SQLiteResults(sqlite3_stmt *pStatement);
virtual ~SQLiteResults();
int getStepCode(void) const;
virtual bool hasMoreRows(void) const;
virtual std::string getColumnName(unsigned int nColumn) const;
virtual SQLRow *nextRow(void);
virtual bool rewind(void);
protected:
char **m_results;
sqlite3_stmt *m_pStatement;
bool m_done;
bool m_firstStep;
int m_stepCode;
void step(void);
private:
SQLiteResults(const SQLiteResults &other);
SQLiteResults &operator=(const SQLiteResults &other);
};
/// Simple C++ wrapper around the SQLite API.
class SQLiteBase : public SQLDB
{
public:
SQLiteBase(const std::string &databaseName,
bool readOnly = false, bool onDemand = true);
virtual ~SQLiteBase();
static bool check(const std::string &databaseName);
bool backup(const std::string &destDatabaseName,
int pagesCount = 5, bool retryOnLock = true);
virtual bool isOpen(void) const;
virtual bool alterTable(const std::string &tableName,
const std::string &columns,
const std::string &newDefinition);
virtual bool beginTransaction(void);
virtual bool rollbackTransaction(void);
virtual bool endTransaction(void);
virtual bool executeSimpleStatement(const std::string &sql);
virtual SQLResults *executeStatement(const char *sqlFormat, ...);
virtual bool prepareStatement(const std::string &statementId,
const std::string &sqlFormat);
virtual SQLResults *executePreparedStatement(const std::string &statementId,
const std::vector<std::string> &values);
protected:
bool m_onDemand;
bool m_inTransaction;
sqlite3 *m_pDatabase;
std::map<std::string, sqlite3_stmt*> m_statements;
void executeSimpleStatement(const std::string &sql, int &execError);
void open(void);
void close(void);
private:
SQLiteBase(const SQLiteBase &other);
SQLiteBase &operator=(const SQLiteBase &other);
};
#endif // _SQLITE_BASE_H
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