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/* Copyright (C) 2003 MySQL AB
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 ODBC_COMMON_DataRow_hpp
#define ODBC_COMMON_DataRow_hpp
#include <new>
#include <common/common.hpp>
#include "DataField.hpp"
class Ctx;
/**
* @class SqlSpecs
* @brief Specification of row of SQL data
*/
class SqlSpecs {
public:
SqlSpecs(unsigned count);
SqlSpecs(const SqlSpecs& sqlSpecs);
~SqlSpecs();
unsigned count() const;
void setEntry(unsigned i, const SqlSpec& sqlSpec);
const SqlSpec& getEntry(unsigned i) const;
private:
SqlSpecs& operator=(const SqlSpecs& sqlSpecs); // disallowed
const unsigned m_count;
SqlSpec* m_sqlSpec;
};
inline unsigned
SqlSpecs::count() const
{
return m_count;
}
inline void
SqlSpecs::setEntry(unsigned i, const SqlSpec& sqlSpec)
{
ctx_assert(m_sqlSpec != 0 && 1 <= i && i <= m_count);
void* place = static_cast<void*>(&m_sqlSpec[i]);
new (place) SqlSpec(sqlSpec);
}
inline const SqlSpec&
SqlSpecs::getEntry(unsigned i) const
{
ctx_assert(m_sqlSpec != 0 && 1 <= i && i <= m_count);
return m_sqlSpec[i];
}
/**
* @class ExtSpecs
* @brief Specification of row of external data
*/
class ExtSpecs {
public:
ExtSpecs(unsigned count);
ExtSpecs(const ExtSpecs& extSpecs);
~ExtSpecs();
unsigned count() const;
void setEntry(unsigned i, const ExtSpec& extSpec);
const ExtSpec& getEntry(unsigned i) const;
private:
ExtSpecs& operator=(const ExtSpecs& extSpecs); // disallowed
const unsigned m_count;
ExtSpec* m_extSpec;
};
inline unsigned
ExtSpecs::count() const
{
return m_count;
}
inline void
ExtSpecs::setEntry(unsigned i, const ExtSpec& extSpec)
{
ctx_assert(m_extSpec != 0 && 1 <= i && i <= m_count);
void* place = static_cast<void*>(&m_extSpec[i]);
new (place) ExtSpec(extSpec);
}
inline const ExtSpec&
ExtSpecs::getEntry(unsigned i) const
{
ctx_assert(m_extSpec != 0 && 1 <= i && i <= m_count);
return m_extSpec[i];
}
/**
* @class SqlRow
* @brief Sql data row
*/
class SqlRow {
public:
SqlRow(const SqlSpecs& sqlSpecs);
SqlRow(const SqlRow& sqlRow);
~SqlRow();
unsigned count() const;
void setEntry(unsigned i, const SqlField& sqlField);
SqlField& getEntry(unsigned i) const;
SqlRow* copy() const;
void copyout(Ctx& ctx, class ExtRow& extRow) const;
private:
SqlRow& operator=(const SqlRow& sqlRow); // disallowed
SqlSpecs m_sqlSpecs;
SqlField* m_sqlField;
};
inline unsigned
SqlRow::count() const
{
return m_sqlSpecs.count();
}
inline void
SqlRow::setEntry(unsigned i, const SqlField& sqlField)
{
ctx_assert(1 <= i && i <= count() && m_sqlField != 0);
m_sqlField[i].~SqlField();
void* place = static_cast<void*>(&m_sqlField[i]);
new (place) SqlField(sqlField);
}
inline SqlField&
SqlRow::getEntry(unsigned i) const
{
ctx_assert(1 <= i && i <= count() && m_sqlField != 0);
return m_sqlField[i];
}
/**
* @class ExtRow
* @brief External data row
*/
class ExtRow {
public:
ExtRow(const ExtSpecs& extSpecs);
ExtRow(const ExtRow& extRow);
~ExtRow();
unsigned count() const;
void setEntry(unsigned i, const ExtField& extField);
ExtField& getEntry(unsigned i) const;
private:
ExtRow& operator=(const ExtRow& extRow); // disallowed
ExtSpecs m_extSpecs;
ExtField* m_extField;
};
inline unsigned
ExtRow::count() const
{
return m_extSpecs.count();
}
inline void
ExtRow::setEntry(unsigned i, const ExtField& extField)
{
ctx_assert(1 <= i && i <= count() && m_extField != 0);
void* place = static_cast<void*>(&m_extField[i]);
new (place) ExtField(extField);
}
inline ExtField&
ExtRow::getEntry(unsigned i) const
{
ctx_assert(1 <= i && i <= count() && m_extField != 0);
return m_extField[i];
}
#endif
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