sese::db::impl::PostgresResultSetImpl Class Reference

PSQL result set implementation. More...

#include <PostgresResultSetImpl.h>

Inheritance diagram for sese::db::impl::PostgresResultSetImpl:

Public Member Functions
	PostgresResultSetImpl (PGresult *res) noexcept
	~PostgresResultSetImpl () noexcept override
void	reset () noexcept override
	Locate the first query record.
bool	next () noexcept override
	Move to the next record.
bool	isNull (size_t index) const noexcept override
	Determine if the returned result is null.
size_t	getColumns () const noexcept override
	Get the number of columns in the record.
int32_t	getInteger (size_t index) const noexcept override
	Get an integer value from the current record.
int64_t	getLong (size_t index) const noexcept override
	Get a long integer value from the current record.
std::string_view	getString (size_t index) const noexcept override
	Get a string from the current record.
double	getDouble (size_t index) const noexcept override
	Get a double-precision floating-point value from the current record.
float	getFloat (size_t index) const noexcept override
	Get a single-precision floating-point value from the current record.
std::optional< sese::DateTime >	getDateTime (size_t index) const noexcept override
	Get a time data structure from the current record.
Public Member Functions inherited from sese::db::ResultSet
virtual	~ResultSet () noexcept=default

Protected Attributes
PGresult *	res
int	row
int	totalRow

Additional Inherited Members
Public Types inherited from sese::db::ResultSet
using	Ptr = std::unique_ptr<ResultSet>

Detailed Description

PSQL result set implementation.

Constructor & Destructor Documentation

PostgresResultSetImpl()

impl::PostgresResultSetImpl::PostgresResultSetImpl ( PGresult * res )

explicitnoexcept

~PostgresResultSetImpl()

impl::PostgresResultSetImpl::~PostgresResultSetImpl ( )

overridenoexcept

References res.

Member Function Documentation

getColumns()

size_t impl::PostgresResultSetImpl::getColumns ( ) const

nodiscardoverridevirtualnoexcept

Get the number of columns in the record.

Returns

Number of columns in the result set record

Implements sese::db::ResultSet.

getDateTime()

std::optional< sese::DateTime > impl::PostgresResultSetImpl::getDateTime ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get a time data structure from the current record.

Parameters

index

Index

Returns

Time data structure

Implements sese::db::ResultSet.

References sese::text::DateTimeParser::parse().

getDouble()

double impl::PostgresResultSetImpl::getDouble ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get a double-precision floating-point value from the current record.

Parameters

index

Index

Returns

Double-precision floating-point value

Implements sese::db::ResultSet.

getFloat()

float impl::PostgresResultSetImpl::getFloat ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get a single-precision floating-point value from the current record.

Parameters

index

Index

Returns

Single-precision floating-point value

Implements sese::db::ResultSet.

getInteger()

int32_t impl::PostgresResultSetImpl::getInteger ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get an integer value from the current record.

Parameters

index

Index

Returns

Integer value

Implements sese::db::ResultSet.

getLong()

int64_t impl::PostgresResultSetImpl::getLong ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get a long integer value from the current record.

Parameters

index

Index

Returns

Long integer value

Implements sese::db::ResultSet.

getString()

std::string_view impl::PostgresResultSetImpl::getString ( size_t index ) const

nodiscardoverridevirtualnoexcept

Get a string from the current record.

Parameters

index

Index

Returns

String

Implements sese::db::ResultSet.

isNull()

bool impl::PostgresResultSetImpl::isNull ( size_t index ) const

nodiscardoverridevirtualnoexcept

Determine if the returned result is null.

Parameters

index

Index

Returns

Whether it is null

Implements sese::db::ResultSet.

next()

bool impl::PostgresResultSetImpl::next ( )

nodiscardoverridevirtualnoexcept

Move to the next record.

Returns

Whether there is a next record

Implements sese::db::ResultSet.

reset()

void impl::PostgresResultSetImpl::reset ( )

overridevirtualnoexcept

Locate the first query record.

Implements sese::db::ResultSet.

Member Data Documentation

res

PGresult* sese::db::impl::PostgresResultSetImpl::res

protected

Referenced by ~PostgresResultSetImpl().

row

int sese::db::impl::PostgresResultSetImpl::row

protected

totalRow

int sese::db::impl::PostgresResultSetImpl::totalRow

protected

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The documentation for this class was generated from the following files:

• sese/internal/db/pgsql/PostgresResultSetImpl.h
• sese/internal/db/pgsql/PostgresResultSetImpl.cpp