Structure used to build and execute a query, and to iterate through the results. More...

#include <cursor.h>

Inheritance diagram for dballe::db::v7::cursor::Base< Impl >:

Public Types
typedef ImplTraits< Impl >::Row	Row

typedef ImplTraits< Impl >::Interface	Interface

Public Member Functions
	Base (std::shared_ptr< v7::Transaction > tr)

int	remaining () const override

bool	has_value () const override

bool	next () override

void	discard () override

dballe::DBStation	get_station () const override

unsigned	test_iterate (FILE *dump=0) override
	Iterate the cursor until the end, returning the number of items.

const Row &	row () const

Static Public Member Functions
static std::shared_ptr< Impl >	downcast (std::shared_ptr< Interface > c)

Public Attributes
std::shared_ptr< v7::Transaction >	tr
	Database to operate on.

std::deque< Row >	results
	Storage for the raw database results.

bool	at_start = true
	True if we are at the start of the iteration.

Detailed Description

template<typename Impl>
struct dballe::db::v7::cursor::Base< Impl >

Structure used to build and execute a query, and to iterate through the results.

Member Function Documentation

template<typename Impl>

unsigned dballe::db::v7::cursor::Base< Impl >::test_iterate ( FILE * dump = 0 )

override

Iterate the cursor until the end, returning the number of items.

If dump is a FILE pointer, also dump the cursor values to it

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