/*****************************************************************************
Copyright © 2006, 2007, The Board of Trustees of the University of Illinois.
All Rights Reserved.
National Center for Data Mining (NCDM)
University of Illinois at Chicago
http://www.ncdm.uic.edu/
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., 51
Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
written by
Yunhong Gu [gu@lac.uic.edu], last updated 02/23/2007
*****************************************************************************/
#ifndef __CB_TABLE_H__
#define __CB_TABLE_H__
#include <data.h>
#include <fstream>
#include <sql.h>
using namespace std;
namespace cb
{
class Table
{
public:
int loadDataFile(const string& filename);
int loadSemantics(const string& semfile);
void close();
int readTuple(char* tuple, int& len);
DataItem readItem(const char* tuple, const string& attr);
bool select(const char* tuple, EvalTree* tree);
int project(const char* src, char* dst, const vector<string>& attr);
private:
int evaluate(const char* tuple, EvalTree* tree, DataItem& res);
private:
ifstream m_DataFile;
vector<DataAttr> m_AttrList;
};
}; // namespace
#endif