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_AdbStatement Struct Reference

AirDBC statement internals. More...

#include <airdbc_drv.h>


Data Fields
AdbConnection *	conn
	Connection on which this statement was prepared.
void *	dstmt
	Driver private statement information.
char *	sql
	Statement parameterized string in native parameter format.
uint32_t	param_count
	Count of parameters in statement.
uint32_t	param_maxlen
	Maximum length of a single parameter in param_buf.
char *	param_buf
	Preallocated parameter space.
char **	param_str
	Array of parameter strings.
GHashTable *	param_map
	AirDBC-maintained map of parameter names to position lists.

Detailed Description

AirDBC statement internals.

May be directly accessed by AirDBC drivers.

Field Documentation

void* _AdbStatement::dstmt

Driver private statement information.

Storage for this is managed bu the driver.

char* _AdbStatement::param_buf

Preallocated parameter space.

Managed by AirDBC. If a position in this buffer is valid (i.e., not NULL), AirDBC will point the appropriate param_str entry into this buffer at adb_stmt_bind() time.

uint32_t _AdbStatement::param_count

Count of parameters in statement.

Generated by adb_stmt_prepare() before calling the driver's prepare routine.

uint32_t _AdbStatement::param_maxlen

Maximum length of a single parameter in param_buf.

This is necessary because AirDBC preallocates parameter space due to the requirements of some RDBMS client libraries. Set by the user at adb_stmt_prepare() time. param_buf is param_maxlen * param_count characters long.

char** _AdbStatement::param_str

Array of parameter strings.

These are pointers into param_buf. If NULL for a parameter, a NULL value was bound for that parameter.

char* _AdbStatement::sql

Statement parameterized string in native parameter format.

Generated by adb_stmt_prepare() before calling the driver's prepare routine.

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

airdbc_drv.h