Represents the diagnostics information to be obtained. More...

#include <sql_get_diagnostics.h>

Inheritance diagram for Diagnostics_information:

Public Types
enum	Which_area { CURRENT_AREA , STACKED_AREA }
	Which Diagnostics Area to access. More...

Public Member Functions
void	set_which_da (Which_area area)
	Set which Diagnostics Area to access. More...

Which_area	get_which_da (void) const
	Get which Diagnostics Area to access. More...

virtual bool	aggregate (THD thd, const Diagnostics_area da)=0
	Aggregate diagnostics information. More...

Protected Member Functions
virtual	~Diagnostics_information ()
	Diagnostics_information objects are allocated in thd->mem_root. More...

template<typename Diag_item , typename Context >
bool	evaluate (THD thd, Diag_item diag_item, Context ctx)
	Evaluate a diagnostics information item in a specific context. More...

Private Attributes
Which_area	m_area
	Which Diagnostics Area to access. More...

Detailed Description

Represents the diagnostics information to be obtained.

Diagnostic information is made available through statement information and condition information items.

Member Enumeration Documentation

◆ Which_area

enum Diagnostics_information::Which_area

Which Diagnostics Area to access.

Enumerator
CURRENT_AREA	Access the first Diagnostics Area.
STACKED_AREA	Access the second Diagnostics Area.

Constructor & Destructor Documentation

◆ ~Diagnostics_information()

virtual Diagnostics_information::~Diagnostics_information ( )

inlineprotectedvirtual

Diagnostics_information objects are allocated in thd->mem_root.

Do not rely on the destructor for any cleanup.

Member Function Documentation

◆ aggregate()

virtual bool Diagnostics_information::aggregate	(	THD *	thd,
		const Diagnostics_area *	da
	)

pure virtual

Aggregate diagnostics information.

Parameters

thd	The current thread.
da	The Diagnostics Area.

Return values

false	on success.
true	on error

Implemented in Statement_information, and Condition_information.

◆ evaluate()

template<typename Diag_item , typename Context >

bool Diagnostics_information::evaluate	(	THD *	thd,
		Diag_item *	diag_item,
		Context	ctx
	)

inlineprotected

Evaluate a diagnostics information item in a specific context.

Parameters

thd	The current thread.
diag_item	The diagnostics information item.
ctx	The context to evaluate the item.

Return values

false	on success.
true	on error.

◆ get_which_da()

Which_area Diagnostics_information::get_which_da ( void ) const

inline

Get which Diagnostics Area to access.

◆ set_which_da()

void Diagnostics_information::set_which_da ( Which_area area )

inline

Set which Diagnostics Area to access.

Member Data Documentation

◆ m_area

Which_area Diagnostics_information::m_area

private