MySQL 8.0.30
Source Code Documentation
Json_null Class Referencefinal

Represents a JSON null type (ECMA), type J_NULL here. More...

#include <json_dom.h>

Inheritance diagram for Json_null:

Public Member Functions

enum_json_type json_type () const override
Json_dom_ptr clone () const override
 Make a deep clone. More...
- 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_containerparent () const
 Get the parent dom to which this dom is attached. More...
virtual bool is_number () const
Json_path get_location ()
 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...

Additional Inherited Members

- Static Public Member Functions inherited from Json_dom
static Json_dom_ptr parse (const char *text, size_t length, const JsonParseErrorHandler &error_handler, const JsonDocumentDepthHandler &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...

Detailed Description

Represents a JSON null type (ECMA), type J_NULL here.

Member Function Documentation

◆ clone()

Json_dom_ptr Json_null::clone ( ) const

Make a deep clone.

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

a cloned Json_dom object.

Implements Json_dom.

◆ json_type()

enum_json_type Json_null::json_type ( ) const
the type corresponding to the actual Json_dom subclass

Implements Json_dom.

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