Create_func_arg1 Class Reference

Inheritance diagram for Create_func_arg1:

List of all members.

Public Member Functions
virtual Item *	create_func (THD *thd, LEX_STRING name, List< Item > *item_list)
virtual Item *	create (THD *thd, Item *arg1)=0
Protected Member Functions
	Create_func_arg1 ()
virtual	~Create_func_arg1 ()

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Detailed Description

Adapter for functions that takes exactly one argument.

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Constructor & Destructor Documentation

Create_func_arg1::Create_func_arg1

(

)

[inline, protected]

Constructor.

virtual Create_func_arg1::~Create_func_arg1

(

)

[inline, protected, virtual]

Destructor.

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Member Function Documentation

virtual Item* Create_func_arg1::create	(	THD *	thd,
		Item *	arg1
	)		[pure virtual]

Builder method, with one argument.

Parameters:

thd	The current thread
arg1	The first argument of the function

Returns:

An item representing the function call

Implemented in Create_func_weekofyear, Create_func_weekday, Create_func_validate_password_strength, Create_func_unhex, Create_func_uncompressed_length, Create_func_uncompress, Create_func_ucase, Create_func_to_seconds, Create_func_to_days, Create_func_to_base64, Create_func_time_to_sec, Create_func_tan, Create_func_sqrt, Create_func_space, Create_func_soundex, Create_func_sleep, Create_func_sin, Create_func_sign, Create_func_sha, Create_func_sec_to_time, Create_func_rtrim, Create_func_reverse, Create_func_release_lock, Create_func_radians, Create_func_quote, Create_func_ord, Create_func_oct, Create_func_monthname, Create_func_md5, Create_func_ltrim, Create_func_log2, Create_func_log10, Create_func_load_file, Create_func_ln, Create_func_length, Create_func_lcase, Create_func_last_day, Create_func_isnull, Create_func_is_used_lock, Create_func_is_free_lock, Create_func_is_ipv4_mapped, Create_func_is_ipv4_compat, Create_func_is_ipv6, Create_func_is_ipv4, Create_func_inet6_ntoa, Create_func_inet6_aton, Create_func_inet_aton, Create_func_inet_ntoa, Create_func_hex, Create_func_from_days, Create_func_from_base64, Create_func_floor, Create_func_exp, Create_func_degrees, Create_func_dayofyear, Create_func_dayofweek, Create_func_dayofmonth, Create_func_dayname, Create_func_crc32, Create_func_cot, Create_func_cos, Create_func_compress, Create_func_coercibility, Create_func_char_length, Create_func_ceiling, Create_func_bit_length, Create_func_bit_count, Create_func_bin, Create_func_asin, Create_func_random_bytes, Create_func_acos, and Create_func_abs.

Item * Create_func_arg1::create_func	(	THD *	thd,
		LEX_STRING	name,
		List< Item > *	item_list
	)		[virtual]

The builder create method. Given the function name and list or arguments, this method creates an Item that represents the function call. In case or errors, a NULL item is returned, and an error is reported. Note that the thd object may be modified by the builder. In particular, the following members/methods can be set/called, depending on the function called and the function possible side effects.

• thd->lex->binlog_row_based_if_mixed
• thd->lex->current_context()
• thd->lex->safe_to_cache_query
• thd->lex->uncacheable(UNCACHEABLE_SIDEEFFECT)
• thd->lex->uncacheable(UNCACHEABLE_RAND)
• thd->lex->add_time_zone_tables_to_query_tables(thd)

Parameters:

thd	The current thread
name	The function name
item_list	The list of arguments to the function, can be NULL

Returns:

An item representing the parsed function call, or NULL

Implements Create_func.

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

• item_create.cc