Gcalc_function Class Reference

List of all members.

Public Types
enum	op_type {   op_shape = 0, op_not = 0x80000000, op_union = 0x10000000, op_intersection = 0x20000000,   op_symdifference = 0x30000000, op_difference = 0x40000000, op_backdifference = 0x50000000, op_any = 0x70000000 }
enum	shape_type { shape_point = 0, shape_line = 1, shape_polygon = 2, shape_hole = 3 }
Public Member Functions
gcalc_shape_info	add_new_shape (uint32 shape_id, shape_type shape_kind)
int	single_shape_op (shape_type shape_kind, gcalc_shape_info *si)
void	add_operation (op_type operation, uint32 n_operands)
void	add_not_operation (op_type operation, uint32 n_operands)
uint32	get_next_operation_pos ()
void	add_operands_to_op (uint32 operation_pos, uint32 n_operands)
void	set_operands_to_op (uint32 operation_pos, uint32 n_operands)
void	set_cur_obj (uint32 cur_obj)
int	reserve_shape_buffer (uint n_shapes)
int	reserve_op_buffer (uint n_ops)
uint	get_nshapes () const
shape_type	get_shape_kind (gcalc_shape_info si) const
void	set_states (int *shape_states)
int	alloc_states ()
void	invert_state (gcalc_shape_info shape)
int	get_state (gcalc_shape_info shape)
int	count ()
void	clear_state ()
void	reset ()
int	find_function (Gcalc_scan_iterator &scan_it)
void	debug_print_function_buffer ()
Static Public Member Functions
static const char *	op_name (int code)
static const char *	shape_name (int code)

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Member Function Documentation

void Gcalc_function::add_operands_to_op	(	uint32	operation_pos,
		uint32	n_operands
	)

Read operand number from the given position and add more operands.

void Gcalc_function::debug_print_function_buffer

(

)

Print function buffer created after shape transformation into mysqld log and into client side warnings. Printing to mysqld log is useful when server crashed during an operation. Printing to client side warnings is useful for mtr purposes.

static const char* Gcalc_function::op_name

(

int

code

)

[static]

Convert operation code to its readable name.

void Gcalc_function::set_operands_to_op	(	uint32	operation_pos,
		uint32	n_operands
	)

Set operand number at the given position (replace the old operand number).

static const char* Gcalc_function::shape_name

(

int

code

)

[static]

Convert shape code to its readable name.

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

• gcalc_tools.h