ha_ndbinfo Class Reference

Inheritance diagram for ha_ndbinfo:

List of all members.

Public Member Functions
	ha_ndbinfo (handlerton *hton, TABLE_SHARE *table_arg)
const char *	table_type () const
const char **	bas_ext () const
ulonglong	table_flags () const
ulong	index_flags (uint inx, uint part, bool all_parts) const
int	create (const char *name, TABLE *form, HA_CREATE_INFO *create_info)
int	open (const char *name, int mode, uint test_if_locked)
int	close (void)
int	rnd_init (bool scan)
int	rnd_end ()
int	rnd_next (uchar *buf)
int	rnd_pos (uchar *buf, uchar *pos)
void	position (const uchar *record)
int	info (uint)
THR_LOCK_DATA **	store_lock (THD *thd, THR_LOCK_DATA **to, enum thr_lock_type lock_type)
bool	low_byte_first () const
bool	get_error_message (int error, String *buf)
uint8	table_cache_type ()

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Member Function Documentation

const char** ha_ndbinfo::bas_ext

(

)

const [inline, virtual]

If frm_error() is called then we will use this to find out what file extentions exist for the storage engine. This is also used by the default rename_table and delete_table method in handler.cc.

For engines that have two file name extentions (separate meta/index file and data file), the order of elements is relevant. First element of engine file name extentions array should be meta/index file extention. Second element - data file extention. This order is assumed by prepare_for_repair() when REPAIR TABLE ... USE_FRM is issued.

Implements handler.

bool ha_ndbinfo::get_error_message	(	int	error,
		String *	buf
	)		[virtual]

Return an error message specific to this handler.

Parameters:

error	error code previously returned by handler
buf	pointer to String where to add error message

Returns:

Returns true if this is a temporary error

Reimplemented from handler.

int ha_ndbinfo::rnd_init

(

bool

scan

)

[virtual]

rnd_init() can be called two times without rnd_end() in between (it only makes sense if scan=1). then the second call should prepare for the new table scan (e.g if rnd_init allocates the cursor, second call should position it to the start of the table, no need to deallocate and allocate it again

Implements handler.

int ha_ndbinfo::rnd_next

(

uchar *

buf

)

[virtual]

Returns:

See also:

index_read_map().

Implements handler.

int ha_ndbinfo::rnd_pos	(	uchar *	buf,
		uchar *	pos
	)		[virtual]

Returns:

See also:

index_read_map().

Implements handler.

THR_LOCK_DATA** ha_ndbinfo::store_lock	(	THD *	thd,
		THR_LOCK_DATA **	to,
		enum thr_lock_type	lock_type
	)		[inline, virtual]

Is not invoked for non-transactional temporary tables.

Note:

store_lock() can return more than one lock if the table is MERGE or partitioned.

that one can NOT rely on table->in_use in store_lock(). It may refer to a different thread if called from mysql_lock_abort_for_thread().

If the table is MERGE, store_lock() can return less locks than lock_count() claimed. This can happen when the MERGE children are not attached when this is called from another thread.

Implements handler.

uint8 ha_ndbinfo::table_cache_type

(

)

[inline, virtual]

Type of table for caching query

Reimplemented from handler.

const char* ha_ndbinfo::table_type

(

)

const [inline, virtual]

The following can be called without an open handler

Implements handler.

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

• ha_ndbinfo.h