RelationalDBQueryResult.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file RelationalDBQueryResult.hh
 *
 * Class definition of RelationalDBQueryResult interface.
 *
 * @author Pekka Jääskeläinen 2004 (pekka.jaaskelainen-no.spam-tut.fi)
 *
 * @note rating: red
 */
 
#ifndef TTA_RELATIONAL_DB_QUERY_RESULT_HH
#define TTA_RELATIONAL_DB_QUERY_RESULT_HH
 
#include <string>
#include <cstddef>
 
class DataObject;
 
/**
 * Classes that implement this interface can be used as relational database
 * query result handles.
 */
class RelationalDBQueryResult {
public:
    virtual ~RelationalDBQueryResult();
 
    static const int UNKNOWN_INDEX = -1;
    virtual int columns() const;
    virtual int column(const std::string& name) const;
    virtual std::string columnName(std::size_t columnIndex) const;
    virtual const DataObject& data(std::size_t column) const = 0;
    virtual const DataObject& data(const std::string& name) const;
    virtual bool hasNext() = 0;
    virtual bool next() = 0;
    virtual void bindInt(unsigned int position, int value);
    virtual void bindString(unsigned int position, const std::string& value);
    virtual void reset();
};
 
#endif