Inheritance diagram for dballe::db::summary::Cursor< Station >:

Public Member Functions
	Cursor (const summary::StationEntries< Station > &entries, const Query &query)

bool	has_value () const
	Check if the cursor points to a valid value. More...

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.

DBStation	get_station () const override
	Get the whole station data in a single call.

Level	get_level () const override
	Get the level.

Trange	get_trange () const override
	Get the time range.

wreport::Varcode	get_varcode () const override
	Get the variable code.

DatetimeRange	get_datetimerange () const override
	Get the datetime range.

size_t	get_count () const override
	Get the count of elements.

void	enq (impl::Enq &enq) const

Static Public Member Functions
static DBStation	_get_dbstation (const DBStation &s)

static DBStation	_get_dbstation (const dballe::Station &station)

static int	_get_station_id (const DBStation &s)

static int	_get_station_id (const dballe::Station &s)

Static Public Member Functions inherited from dballe::impl::CursorSummary
static std::unique_ptr< CursorSummary >	downcast (std::unique_ptr< dballe::CursorSummary > c)
	Downcast a unique_ptr pointer.

static std::unique_ptr< CursorSummary >	make_empty ()
	Create a CursorSummary iterating on no results.

Public Attributes
std::vector< Entry >	results

std::vector< Entry >::const_iterator	cur

bool	at_start = true

Member Function Documentation

◆ has_value()

template<typename Station >

bool dballe::db::summary::Cursor< Station >::has_value ( ) const

inlinevirtual

Check if the cursor points to a valid value.

Returns: true if the cursor points to a valid accessible value, false if next() has not been called yet, or if at the end of iteration (i.e. next() returned false)