Opt_trace_object Class Reference

A JSON object (unordered set of key/value pairs). More...

#include <opt_trace.h>

Inheritance diagram for Opt_trace_object:

Public Member Functions
	Opt_trace_object (Opt_trace_context *ctx, const char *key, Opt_trace_context::feature_value feature=Opt_trace_context::MISC)
	Constructs an object. More...
	Opt_trace_object (Opt_trace_context *ctx, Opt_trace_context::feature_value feature=Opt_trace_context::MISC)
	Constructs an object. More...
Public Member Functions inherited from Opt_trace_struct
void	end ()
	The exception to RAII: this function is an explicit way of ending a structure before it goes out of scope. More...
Opt_trace_struct &	add_alnum (const char *key, const char *value)
	Adds a value (of string type) to the structure. More...
Opt_trace_struct &	add_alnum (const char *value)
	Adds a value (of string type) to the structure. More...
Opt_trace_struct &	add_utf8 (const char *key, const char *value, size_t val_length)
	Like add_alnum() but supports any UTF8 characters in 'value'. More...
Opt_trace_struct &	add_utf8 (const char *value, size_t val_length)
	Variant of add_utf8() for adding to an array (no key) More...
Opt_trace_struct &	add_utf8 (const char *key, const char *value)
	Variant of add_utf8() where 'value' is 0-terminated. More...
Opt_trace_struct &	add_utf8 (const char *value)
	Variant of add_utf8() where 'value' is 0-terminated. More...
Opt_trace_struct &	add (const char *key, const Item *item)
	Add a value (of Item type) to the structure. More...
Opt_trace_struct &	add (const Item *item)
Opt_trace_struct &	add (const char *key, bool value)
Opt_trace_struct &	add (bool value)
Opt_trace_struct &	add (const char *key, int value)
Opt_trace_struct &	add (int value)
Opt_trace_struct &	add (const char *key, uint value)
Opt_trace_struct &	add (uint value)
Opt_trace_struct &	add (const char *key, ulong value)
Opt_trace_struct &	add (ulong value)
Opt_trace_struct &	add (const char *key, longlong value)
Opt_trace_struct &	add (longlong value)
Opt_trace_struct &	add (const char *key, ulonglong value)
Opt_trace_struct &	add (ulonglong value)
Opt_trace_struct &	add (const char *key, double value)
Opt_trace_struct &	add (double value)
Opt_trace_struct &	add_null (const char *key)
	Adds a JSON null object (==Python's "None") More...
Opt_trace_struct &	add_utf8_table (const Table_ref *tab)
	Helper to put the database/table name in an object. More...
Opt_trace_struct &	add_select_number (uint select_number)
	Helper to put the number of query_block in an object. More...
Opt_trace_struct &	add (const char *key, const Cost_estimate &cost)
	Add a value to the structure. More...
bool	set_not_empty ()
	Informs this structure that we are adding data (scalars, structures) to it. More...
const char *	check_key (const char *key)
	Validates the key about to be added. More...

Additional Inherited Members
Protected Member Functions inherited from Opt_trace_struct
	Opt_trace_struct (Opt_trace_context *ctx_arg, bool requires_key_arg, const char *key, Opt_trace_context::feature_value feature)
	~Opt_trace_struct ()

Detailed Description

A JSON object (unordered set of key/value pairs).

Defines only a constructor, all the rest is inherited from Opt_trace_struct.

Constructor & Destructor Documentation

Opt_trace_object() [1/2]

Opt_trace_object::Opt_trace_object ( Opt_trace_context *  ctx, const char *  key, Opt_trace_context::feature_value  feature = Opt_trace_context::MISC  )

inline

Constructs an object.

Key is specified, so the object is the value of a key/value pair.

Parameters

ctx	context for this object
key	key
feature	optimizer feature to which this structure belongs

Opt_trace_object() [2/2]

Opt_trace_object::Opt_trace_object ( Opt_trace_context *  ctx, Opt_trace_context::feature_value  feature = Opt_trace_context::MISC  )

inline

Constructs an object.

No key is specified, so the object is just a value (serves for the single root object or for adding the object to an array).

Parameters

ctx	context for this object
feature	optimizer feature to which this structure belongs

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

• sql/opt_trace.h