Protocol_local Class Reference

Inheritance diagram for Protocol_local:

List of all members.

Public Member Functions
	Protocol_local (THD *thd, Ed_connection *ed_connection)
Protected Member Functions
virtual void	prepare_for_resend ()
virtual bool	write ()
virtual bool	store_null ()
virtual bool	store_tiny (longlong from)
virtual bool	store_short (longlong from)
virtual bool	store_long (longlong from)
virtual bool	store_longlong (longlong from, bool unsigned_flag)
virtual bool	store_decimal (const my_decimal *)
virtual bool	store (const char *from, size_t length, const CHARSET_INFO *cs)
virtual bool	store (const char *from, size_t length, const CHARSET_INFO *fromcs, const CHARSET_INFO *tocs)
virtual bool	store (MYSQL_TIME *time, uint precision)
virtual bool	store_date (MYSQL_TIME *time)
virtual bool	store_time (MYSQL_TIME *time, uint precision)
virtual bool	store (float value, uint32 decimals, String *buffer)
virtual bool	store (double value, uint32 decimals, String *buffer)
virtual bool	store (Field *field)
virtual bool	send_result_set_metadata (List< Item > *list, uint flags)
virtual bool	send_out_parameters (List< Item_param > *sp_params)
virtual enum enum_protocol_type	type ()
virtual bool	send_ok (uint server_status, uint statement_warn_count, ulonglong affected_rows, ulonglong last_insert_id, const char *message)
virtual bool	send_eof (uint server_status, uint statement_warn_count)
virtual bool	send_error (uint sql_errno, const char *err_msg, const char *sqlstate)

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Detailed Description

Protocol_local: a helper class to intercept the result of the data written to the network.

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Member Function Documentation

void Protocol_local::prepare_for_resend

(

)

[protected, virtual]

Called between two result set rows.

Prepare structures to fill result set rows. Unfortunately, we can't return an error here. If memory allocation fails, we'll have to return an error later. And so is done in methods such as

See also:

store_column().

Implements Protocol.

bool Protocol_local::send_eof	(	uint	server_status,
		uint	statement_warn_count
	)		[protected, virtual]

Called at the end of a result set. Append a complete result set to the list in Ed_connection.

Don't send anything to the client, but instead finish building of the result set at hand.

Reimplemented from Protocol.

bool Protocol_local::send_error	(	uint	sql_errno,
		const char *	err_msg,
		const char *	sqlstate
	)		[protected, virtual]

Called to send an error to the client at the end of a statement.

Reimplemented from Protocol.

bool Protocol_local::send_ok	(	uint	server_status,
		uint	statement_warn_count,
		ulonglong	affected_rows,
		ulonglong	last_insert_id,
		const char *	message
	)		[protected, virtual]

Called for statements that don't have a result set, at statement end.

Reimplemented from Protocol.

bool Protocol_local::send_out_parameters

(

List< Item_param > *

sp_params

)

[protected, virtual]

Normally this is a separate result set with OUT parameters of stored procedures. Currently unsupported for the local version.

Implements Protocol.

bool Protocol_local::send_result_set_metadata	(	List< Item > *	columns,
		uint	flags
	)		[protected, virtual]

Called to start a new result set.

Reimplemented from Protocol.

bool Protocol_local::store	(	const char *	str,
		size_t	length,
		const CHARSET_INFO *	src_cs
	)		[protected, virtual]

Convert to cs_results and store a string.

Implements Protocol.

bool Protocol_local::store	(	const char *	str,
		size_t	length,
		const CHARSET_INFO *	src_cs,
		const CHARSET_INFO *	dst_cs
	)		[protected, virtual]

Store a string.

Implements Protocol.

bool Protocol_local::store_date

(

MYSQL_TIME *

time

)

[protected, virtual]

Store MYSQL_TIME (in binary format)

Implements Protocol.

bool Protocol_local::store_decimal

(

const my_decimal *

value

)

[protected, virtual]

Store a decimal in string format in a result set column

Implements Protocol.

bool Protocol_local::store_long

(

longlong

value

)

[protected, virtual]

Store a "long" as is (4 bytes, host order) in a result set column.

Implements Protocol.

bool Protocol_local::store_longlong	(	longlong	value,
		bool	unsigned_flag
	)		[protected, virtual]

Store a "longlong" as is (8 bytes, host order) in a result set column.

Implements Protocol.

bool Protocol_local::store_null

(

)

[protected, virtual]

Add a NULL column to the current row.

Implements Protocol.

bool Protocol_local::store_short

(

longlong

value

)

[protected, virtual]

Store a short as is (2 bytes, host order) in a result set column.

Implements Protocol.

bool Protocol_local::store_time	(	MYSQL_TIME *	time,
		uint	precision
	)		[protected, virtual]

Store MYSQL_TIME (in binary format)

Implements Protocol.

bool Protocol_local::store_tiny

(

longlong

value

)

[protected, virtual]

Store a tiny int as is (1 byte) in a result set column.

Implements Protocol.

bool Protocol_local::write

(

)

[protected, virtual]

In "real" protocols this is called to finish a result set row. Unused in the local implementation.

Reimplemented from Protocol.

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

• sql_prepare.cc