Json_date Class Reference

MySQL DATE value. More...

#include <json_dom.h>

Inheritance diagram for Json_date:

Public Member Functions
	Json_date (const Date_val date)
	Constructs an object to hold a MySQL date value. More...
enum_json_type	json_type () const override
Json_dom_ptr	clone () const override
	Make a deep clone. More...
const Date_val	value () const
enum_field_types	field_type () const override
void	to_packed (char *dest) const
	Convert the DATE value to the packed format used for storage. More...
Public Member Functions inherited from Json_temporal
	Json_temporal ()
Public Member Functions inherited from Json_scalar
uint32	depth () const final
	Compute the depth of a document. More...
bool	is_scalar () const final
Public Member Functions inherited from Json_dom
virtual	~Json_dom ()=default
void *	operator new (size_t size, const std::nothrow_t &) noexcept
	Allocate space on the heap for a Json_dom object. More...
void	operator delete (void *ptr) noexcept
	Deallocate the space used by a Json_dom object. More...
void	operator delete (void *ptr, const std::nothrow_t &) noexcept
	Nothrow delete. More...
Json_container *	parent () const
	Get the parent dom to which this dom is attached. More...
virtual bool	is_number () const
Json_path	get_location () const
	Get the path location of this dom, measured from the outermost document it nests inside. More...
bool	seek (const Json_seekable_path &path, size_t legs, Json_dom_vector *hits, bool auto_wrap, bool only_need_one)
	Finds all of the json sub-documents which match the path expression. More...

Static Public Member Functions
static void	from_packed (const char *from, Date_val *to)
	Convert a packed date back to a date value. More...
static void	from_packed_to_key (const char *from, uchar *to)
	Convert a packed date value to key string for indexing by SE. More...
Static Public Member Functions inherited from Json_dom
static Json_dom_ptr	parse (const char *text, size_t length, const JsonParseErrorHandler &error_handler, const JsonErrorHandler &depth_handler)
	Parse Json text to DOM (using rapidjson). More...
static Json_dom_ptr	parse (const json_binary::Value &v)
	Construct a DOM object based on a binary JSON value. More...

Private Attributes
Date_val	m_date
	Holds the date value. More...

Additional Inherited Members
Static Public Attributes inherited from Json_temporal
static const size_t	PACKED_SIZE = 8
	Datetimes are packed in eight bytes. More...

Detailed Description

MySQL DATE value.

Constructor & Destructor Documentation

Json_date()

Json_date::Json_date ( const Date_val  date )

inlineexplicit

Constructs an object to hold a MySQL date value.

Parameters

date	the date value

Member Function Documentation

clone()

Json_dom_ptr Json_date::clone ( ) const

overridevirtual

Make a deep clone.

The ownership of the returned object is henceforth with the caller.

Returns

a cloned Json_dom object.

Implements Json_dom.

field_type()

enum_field_types Json_date::field_type ( ) const

inlineoverridevirtual

Returns

kind of temporal value this object holds: MYSQL_TYPE_DATE

Implements Json_temporal.

from_packed()

void Json_date::from_packed ( const char *  from, Date_val *  to  )

static

Convert a packed date back to a date value.

Parameters

from	the buffer to read from (must have at least PACKED_SIZE bytes)
to	the date field to write the value to

from_packed_to_key()

void Json_date::from_packed_to_key ( const char *  from, uchar *  to  )

static

Convert a packed date value to key string for indexing by SE.

Parameters

from	the buffer to read from
to	the destination buffer

json_type()

enum_json_type Json_date::json_type ( ) const

inlineoverridevirtual

Returns

the type corresponding to the actual Json_dom subclass

Implements Json_dom.

to_packed()

void Json_date::to_packed

(

char *

dest

)

const

Convert the DATE value to the packed format used for storage.

Parameters

dest	the destination buffer to write the packed date value to (must at least have size PACKED_SIZE)

value()

const Date_val Json_date::value ( ) const

inline

Returns

the date value.

Member Data Documentation

m_date

Date_val Json_date::m_date

private

Holds the date value.

---

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

• sql-common/json_dom.h
• sql-common/json_dom.cc