dballe::impl::msg::CursorData Struct Reference

Inheritance diagram for dballe::impl::msg::CursorData:

Public Member Functions
	CursorData (const impl::Message &msg, bool merged=false)
int	remaining () const override
	Get the number of rows still to be fetched. More...
bool	next () override
	Get a new item from the results of a query. More...
void	discard () override
	Discard the results that have not been read yet.
void	enq (Enq &enq) const override
DBStation	get_station () const override
	Get the whole station data in a single call.
wreport::Varcode	get_varcode () const override
	Get the variable code.
wreport::Var	get_var () const override
	Get the variable.
Level	get_level () const override
	Get the level.
Trange	get_trange () const override
	Get the time range.
Datetime	get_datetime () const override
	Get the datetime.

Static Public Member Functions
static std::unique_ptr< CursorData >	downcast (std::unique_ptr< dballe::CursorData > c)
	Downcast a unique_ptr pointer.
Static Public Member Functions inherited from dballe::impl::CursorData
static std::unique_ptr< CursorData >	downcast (std::unique_ptr< dballe::CursorData > c)
	Downcast a unique_ptr pointer.
static std::unique_ptr< CursorData >	make_empty ()
	Create a CursorData iterating on no results.

Public Attributes
dballe::DBStation	station
Datetime	datetime
std::vector< CursorDataRow >	rows
std::vector< CursorDataRow >::const_iterator	cur
bool	at_start = true

Member Function Documentation

next()

bool dballe::impl::msg::CursorData::next ( )

inlineoverridevirtual

Get a new item from the results of a query.

Returns

true if a new record has been read, false if there is no more data to read

Implements dballe::Cursor.

remaining()

int dballe::impl::msg::CursorData::remaining ( ) const

inlineoverridevirtual

Get the number of rows still to be fetched.

Returns

The number of rows still to be queried. The value is undefined if no query has been successfully peformed yet using this cursor.

Implements dballe::Cursor.

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The documentation for this struct was generated from the following file:

• msg/cursor.h