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b2xy_cursor Struct Reference

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Detailed Description

Structure to describe a cursor in the virtual table.

Definition at line 253 of file blobtoxy.c.

Data Fields
sqlite3_vtab_cursor	base
	SQLite's base cursor struct.
b2xy_table *	table
	Link to table struct.
sqlite3_stmt *	select
	Prepared SELECT statement or NULL.
sqlite3_value *	key
	Value of current key.
int	fix_cols
	Fixed number of columns of result set.
int	num_cols
	Total number of columns of result set.
char *	val
	Value of current BLOB.
int	val_len
	Length of current BLOB.
int	x_scale_col
	Column number of X scale or 0.
int	x_offset_col
	Column number of X offset or 0.
double	x_scale
double	x_offset
	Current X scale and offset.
int	y_scale_col
	Column number of Y scale or 0.
int	y_offset_col
	Column number of Y offset or 0.
double	y_scale
double	y_offset
	Current X scale and offset.
int	do_x_scale
	If true, use X scale and offset.
int	do_y_scale
	If true, use Y scale and offset.
int	do_x_sl
	If true, apply X start/length.
int	x_start
int	x_length
	X start/length.
int	type
	Data type of BLOB.
int	index
	Current index in BLOB.
int	rowid_from_key
	When true, ROWID used from key column.
sqlite_int64	rowid
	Current ROWID.

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Field Documentation

sqlite3_vtab_cursor b2xy_cursor::base

SQLite's base cursor struct. Definition at line 254 of file blobtoxy.c.

int b2xy_cursor::do_x_scale

If true, use X scale and offset. Definition at line 268 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::do_x_sl

If true, apply X start/length. Definition at line 270 of file blobtoxy.c. Referenced by b2xy_next(), and b2xy_open().

int b2xy_cursor::do_y_scale

If true, use Y scale and offset. Definition at line 269 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::fix_cols

Fixed number of columns of result set. Definition at line 258 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_filter().

int b2xy_cursor::index

Current index in BLOB. Definition at line 273 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

sqlite3_value* b2xy_cursor::key

Value of current key. Definition at line 257 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::num_cols

Total number of columns of result set. Definition at line 259 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_filter().

sqlite_int64 b2xy_cursor::rowid

Current ROWID. Definition at line 275 of file blobtoxy.c. Referenced by b2xy_filter(), b2xy_next(), and b2xy_rowid().

int b2xy_cursor::rowid_from_key

When true, ROWID used from key column. Definition at line 274 of file blobtoxy.c. Referenced by b2xy_filter(), and b2xy_next().

sqlite3_stmt* b2xy_cursor::select

Prepared SELECT statement or NULL. Definition at line 256 of file blobtoxy.c. Referenced by b2xy_close(), b2xy_column(), b2xy_eof(), b2xy_filter(), and b2xy_next().

b2xy_table* b2xy_cursor::table

Link to table struct. Definition at line 255 of file blobtoxy.c. Referenced by b2xy_filter(), b2xy_next(), and b2xy_open().

int b2xy_cursor::type

Data type of BLOB. Definition at line 272 of file blobtoxy.c. Referenced by b2xy_column(), b2xy_next(), and b2xy_open().

char* b2xy_cursor::val

Value of current BLOB. Definition at line 260 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::val_len

Length of current BLOB. Definition at line 261 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::x_length

X start/length. Definition at line 271 of file blobtoxy.c. Referenced by b2xy_next(), and b2xy_open().

double b2xy_cursor::x_offset

Current X scale and offset. Definition at line 264 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::x_offset_col

Column number of X offset or 0. Definition at line 263 of file blobtoxy.c. Referenced by b2xy_filter(), and b2xy_next().

double b2xy_cursor::x_scale

Definition at line 264 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::x_scale_col

Column number of X scale or 0. Definition at line 262 of file blobtoxy.c. Referenced by b2xy_filter(), and b2xy_next().

int b2xy_cursor::x_start

Definition at line 271 of file blobtoxy.c. Referenced by b2xy_next(), and b2xy_open().

double b2xy_cursor::y_offset

Current X scale and offset. Definition at line 267 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::y_offset_col

Column number of Y offset or 0. Definition at line 266 of file blobtoxy.c. Referenced by b2xy_filter(), and b2xy_next().

double b2xy_cursor::y_scale

Definition at line 267 of file blobtoxy.c. Referenced by b2xy_column(), and b2xy_next().

int b2xy_cursor::y_scale_col

Column number of Y scale or 0. Definition at line 265 of file blobtoxy.c. Referenced by b2xy_filter(), and b2xy_next().

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

• blobtoxy.c

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Generated on 23 Oct 2023 by doxygen.