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<h1>Source: hk_classes/hk_classes/hk_data.h</h1>
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<pre>
// ****************************************************************************
// copyright (c) 2000-2002 Horst Knorr <hk_classes@knoda.org>
// This file is part of the hk_classes library.
// This file may be distributed and/or modified under the terms of the
// GNU Library Public License version 2 as published by the Free Software
// Foundation and appearing in the file COPYING included in the
// packaging of this file.
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// ****************************************************************************
#ifndef HK_DATA
#define HK_DATA
#include <hk_class.h>
using namespace std;
/**
*@short Base class for all kind of queries
*@version $Revision: 1.2 $
*@author Horst Knorr (hk_classes@knoda.org)
*@internal
*for internal use only.
*Base class for queries of all type
*/
class hk_data: public hk_class
{
friend class hk_database;
public:
/**
*name of the Datasource. If the datasource is of type "Table","Query", this name will be used to create automatically
*a SQL-statement : "SELECT * FROM <name>"
*/
virtual hk_string name(void);
virtual void set_name(const hk_string& n);
/**
*Datasources can be of different types (i.e. table). You never should get in contact with ds_unkown (which would
*be understood as a bug)
*
*/
enum enum_datasourcetypes {ds_table,ds_query,ds_actionquery,ds_unknown};
virtual enum_datasourcetypes type(void);
protected:
hk_data();
virtual ~hk_data();
virtual void before_source_vanishes(void);
virtual void before_connection_disconnects(void);
virtual void filelist_changes(filetype t);
virtual bool driver_specific_name(const hk_string& n);
hk_string p_name;
private:
//p_already_handled is used from hk_database in bulk operations to find out if this object has been already handled.
bool p_already_handled;
};
#endif
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