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/*
FALCON - The Falcon Programming Language.
FILE: sqlite3_mod.h
SQLite3 driver main module interface
-------------------------------------------------------------------
Author: Giancarlo Niccolai
Begin: Sun, 23 May 2010 18:23:20 +0200
-------------------------------------------------------------------
(C) Copyright 2010: the FALCON developers (see list in AUTHORS file)
See LICENSE file for licensing details.
*/
#ifndef FALCON_DBI_SQLITE3_MOD_H
#define FALCON_DBI_SQLITE3_MOD_H
#include <sqlite3.h>
#include <falcon/dbi_common.h>
#include <falcon/srv/dbi_service.h>
namespace Falcon
{
class DBIHandleSQLite3;
class SQLite3StatementHandler: public DBIRefCounter<sqlite3_stmt*>
{
public:
SQLite3StatementHandler( sqlite3_stmt* p ):
DBIRefCounter<sqlite3_stmt*>(p)
{}
virtual ~SQLite3StatementHandler() {
sqlite3_finalize( handle() );
}
};
class SQLite3Handler: public DBIRefCounter<sqlite3*>
{
public:
SQLite3Handler( sqlite3* p ):
DBIRefCounter<sqlite3*>(p)
{}
virtual ~SQLite3Handler() {
sqlite3_close( handle() );
}
};
class Sqlite3InBind: public DBIInBind
{
public:
Sqlite3InBind(sqlite3_stmt* stmt);
virtual ~Sqlite3InBind();
virtual void onFirstBinding( int size );
virtual void onItemChanged( int num );
private:
sqlite3_stmt* m_stmt;
};
class DBIRecordsetSQLite3 : public DBIRecordset
{
protected:
int m_row;
int m_columnCount;
SQLite3StatementHandler* m_pStmt;
SQLite3Handler* m_pDbh;
// caching for simpler access
sqlite3_stmt* m_stmt;
bool m_bAsString;
public:
DBIRecordsetSQLite3( DBIHandleSQLite3 *dbt, SQLite3StatementHandler* pStmt );
DBIRecordsetSQLite3( DBIHandleSQLite3 *dbt, sqlite3_stmt* stmt );
virtual ~DBIRecordsetSQLite3();
virtual int64 getRowIndex();
virtual int64 getRowCount();
virtual int getColumnCount();
virtual bool getColumnName( int nCol, String& name );
virtual bool fetchRow();
virtual bool getColumnValue( int nCol, Item& value );
virtual bool discard( int64 ncount );
virtual void close();
};
class DBIStatementSQLite3: public DBIStatement
{
public:
DBIStatementSQLite3( DBIHandleSQLite3 *dbh, SQLite3StatementHandler* pStmt );
DBIStatementSQLite3( DBIHandleSQLite3 *dbh, sqlite3_stmt* stmt );
virtual ~DBIStatementSQLite3();
virtual DBIRecordset* execute( ItemArray* params );
virtual void reset();
virtual void close();
sqlite3_stmt* sqlite3_statement() const { return m_statement; }
protected:
sqlite3_stmt* m_statement;
SQLite3StatementHandler* m_pStmt;
Sqlite3InBind m_inBind;
SQLite3Handler* m_pDbh;
bool m_bFirst;
};
class DBIHandleSQLite3 : public DBIHandle
{
protected:
sqlite3* m_conn;
SQLite3Handler* m_connRef;
DBISettingParams m_settings;
bool m_bInTrans;
sqlite3_stmt* int_prepare( const String &query ) const;
public:
DBIHandleSQLite3();
DBIHandleSQLite3( sqlite3 *conn );
virtual ~DBIHandleSQLite3();
virtual void options( const String& params );
virtual const DBISettingParams* options() const;
virtual void close();
virtual DBIRecordset *query( const String &sql, ItemArray* params=0 );
virtual DBIStatement* prepare( const String &query );
virtual int64 getLastInsertedId( const String& name = "" );
virtual void begin();
virtual void commit();
virtual void rollback();
virtual void selectLimited( const String& query,
int64 nBegin, int64 nCount, String& result );
static void throwError( int falconError, int sql3Error, char* edesc=0 );
static String errorDesc( int error );
SQLite3Handler* getConn() { return m_connRef; }
};
class DBIServiceSQLite3 : public DBIService
{
public:
DBIServiceSQLite3();
virtual void init();
virtual DBIHandle *connect( const String ¶meters );
virtual CoreObject *makeInstance( VMachine *vm, DBIHandle *dbh );
};
}
extern Falcon::DBIServiceSQLite3 theSQLite3Service;
#endif
/* end of sqlite3.h */
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