Charset_service Class Reference

Class that acquire/release the udf_metadata_service from registry service. More...

#include <udf_utils.h>

Static Public Member Functions
static bool	init (const mysql_service_registry_t *reg_srv)
	Acquires the udf_metadata_service from the registry service. More...
static bool	deinit (const mysql_service_registry_t *reg_srv)
	Release the udf_metadata service. More...
static bool	set_return_value_charset (UDF_INIT *initid, const std::string &charset_name="latin1")
	Set the specified character set of UDF return value. More...
static bool	set_args_charset (UDF_ARGS *args, const std::string &charset_name="latin1")
	Set the specified character set of all UDF arguments. More...

Static Private Attributes
static const char *	arg_type
static const char *	service_name
static const mysql_service_mysql_udf_metadata_t *	udf_metadata_service

Detailed Description

Class that acquire/release the udf_metadata_service from registry service.

It provides the APIs to set the character set of return value and arguments of UDFs using the udf_metadata service.

Member Function Documentation

deinit()

bool Charset_service::deinit ( const mysql_service_registry_t *  reg_srv )

static

Release the udf_metadata service.

Parameters

[in]

reg_srv

Registry service from which the udf_metadata service will be released.

Return values

true	if service could not be released
false	Otherwise

init()

bool Charset_service::init ( const mysql_service_registry_t *  reg_srv )

static

Acquires the udf_metadata_service from the registry service.

Parameters

[in]

reg_srv

Registry service from which udf_metadata service will be acquired

Return values

true	if service could not be acquired
false	Otherwise

set_args_charset()

bool Charset_service::set_args_charset ( UDF_ARGS *  args, const std::string &  charset_name = "latin1"  )

static

Set the specified character set of all UDF arguments.

Parameters

[in]	args	UDF_ARGS structure
[in]	charset_name	Character set that has to be set. The default charset is set to 'latin1'

Return values

true	Could not set the character set of any of the argument
false	Otherwise

set_return_value_charset()

bool Charset_service::set_return_value_charset ( UDF_INIT *  initid, const std::string &  charset_name = "latin1"  )

static

Set the specified character set of UDF return value.

Parameters

[in]	initid	UDF_INIT structure
[in]	charset_name	Character set that has to be set. The default charset is set to 'latin1'

Return values

true	Could not set the character set of return value
false	Otherwise

Member Data Documentation

arg_type

const char * Charset_service::arg_type

staticprivate

service_name

const char * Charset_service::service_name

staticprivate

udf_metadata_service

const mysql_service_mysql_udf_metadata_t * Charset_service::udf_metadata_service

staticprivate

Initial value:

=
    nullptr

---

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

• plugin/group_replication/include/udf/udf_utils.h
• plugin/group_replication/src/udf/udf_utils.cc