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#ifndef ODBC_COLUMN_H
#define ODBC_COLUMN_H
#include "odbc-bind.h"
#include "odbc-param.h"
#include "odbc-param_fwd.h"
#include <algorithm>
#include <column.h>
#include <glibmm/ustring.h>
#include <sql.h>
#include <sqlext.h>
#include <vector>
namespace ODBC {
class SelectCommand;
class Column : public virtual Bind, public virtual DB::Column {
public:
Column(SelectCommand *, const Glib::ustring & s, unsigned int i);
virtual ~Column() override = default;
void bind();
virtual void * rwDataAddress() = 0;
virtual bool resize();
[[nodiscard]] bool isNull() const override;
virtual void apply(DB::HandleField &) const override = 0;
const SelectCommand * selectCmd;
protected:
virtual const Param * meAsAParam() const = 0;
};
class CharArrayColumn : public Column, public Param {
public:
using CharArray = std::vector<char>;
CharArrayColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i, SQLULEN sizeHint) :
DB::Column(n, i), Column(sc, n, i)
{
data.resize(std::max<SQLULEN>(sizeHint, 64) + 1);
}
SQLSMALLINT
ctype() const override
{
return SQL_C_CHAR;
}
SQLSMALLINT
stype() const override
{
return SQL_CHAR;
}
SQLULEN
size() const override
{
return data.size();
}
SQLSMALLINT
dp() const override
{
return 0;
}
const void *
dataAddress() const override
{
return &data.front();
}
void *
rwDataAddress() override
{
return &data.front();
}
void operator=(const Glib::ustring & d);
bool resize() override;
void apply(DB::HandleField &) const override;
protected:
virtual const Param *
meAsAParam() const override
{
return this;
}
CharArray data;
};
class SignedIntegerColumn : public Column, public SignedIntegerParam {
public:
SignedIntegerColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
DB::Column(n, i), Column(sc, n, i)
{
}
SQLSMALLINT
ctype() const override
{
return SignedIntegerParam::ctype();
}
SQLULEN
size() const override
{
return SignedIntegerParam::size();
}
void *
rwDataAddress() override
{
return &data;
}
const Param *
meAsAParam() const override
{
return this;
}
void apply(DB::HandleField &) const override;
};
#ifdef COMPLETENESS
class UnsignedIntegerColumn : public Column, public UnsignedIntegerParam {
public:
UnsignedIntegerColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) : Column(sc, n, i) { }
const Param *
meAsAParam() const override
{
return this;
}
};
#endif
class FloatingPointColumn : public Column, public FloatingPointParam {
public:
FloatingPointColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
DB::Column(n, i), Column(sc, n, i)
{
}
SQLSMALLINT
ctype() const override
{
return FloatingPointParam::ctype();
}
SQLULEN
size() const override
{
return FloatingPointParam::size();
}
void *
rwDataAddress() override
{
return &data;
}
const Param *
meAsAParam() const override
{
return this;
}
void apply(DB::HandleField &) const override;
};
class IntervalColumn : public Column, public IntervalParam {
public:
IntervalColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) : DB::Column(n, i), Column(sc, n, i)
{
}
SQLSMALLINT
ctype() const override
{
return IntervalParam::ctype();
}
SQLULEN
size() const override
{
return IntervalParam::size();
}
void *
rwDataAddress() override
{
return &data;
}
const Param *
meAsAParam() const override
{
return this;
}
void apply(DB::HandleField &) const override;
};
class TimeStampColumn : public Column, public TimeStampParam {
public:
TimeStampColumn(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
DB::Column(n, i), Column(sc, n, i)
{
}
SQLSMALLINT
ctype() const override
{
return TimeStampParam::ctype();
}
SQLULEN
size() const override
{
return TimeStampParam::size();
}
void *
rwDataAddress() override
{
return &data;
}
const Param *
meAsAParam() const override
{
return this;
}
void apply(DB::HandleField &) const override;
};
}
#endif
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