Diagnostics_information_item Class Reference

A diagnostics information item. More...

#include <sql_get_diagnostics.h>

Inheritance diagram for Diagnostics_information_item:

Public Member Functions
bool	set_value (THD *thd, Item **value)
	Set a value for this item. More...

Protected Member Functions
	Diagnostics_information_item (Item *target)
	Constructor, used to represent a diagnostics information item. More...
virtual	~Diagnostics_information_item ()
	Diagnostics_information_item objects are allocated in thd->mem_root. More...

Private Attributes
Item *	m_target
	The target variable that will receive the value of this item. More...

Detailed Description

A diagnostics information item.

Used to associate a specific diagnostics information item to a target variable.

Constructor & Destructor Documentation

Diagnostics_information_item()

Diagnostics_information_item::Diagnostics_information_item ( Item *  target )

inlineprotected

Constructor, used to represent a diagnostics information item.

Parameters

target

A target that gets the value of this item.

~Diagnostics_information_item()

virtual Diagnostics_information_item::~Diagnostics_information_item ( )

inlineprotectedvirtual

Diagnostics_information_item objects are allocated in thd->mem_root.

Do not rely on the destructor for any cleanup.

Member Function Documentation

set_value()

bool Diagnostics_information_item::set_value	(	THD *	thd,
		Item **	value
	)

Set a value for this item.

Parameters

thd	The current thread.
value	The obtained value.

Return values

false	on success.
true	on error.

Member Data Documentation

m_target

Item* Diagnostics_information_item::m_target

private

The target variable that will receive the value of this item.

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

• sql/sql_get_diagnostics.h
• sql/sql_get_diagnostics.cc