Cost_model_se_info Class Reference

Class that keeps all cost constants for a storage engine. More...

#include <opt_costconstants.h>

Public Member Functions
	Cost_model_se_info ()
	Constructor that just initializes the class. More...
	~Cost_model_se_info ()
	Destructor. More...

Protected Member Functions
void	set_cost_constants (SE_cost_constants *cost_constants, unsigned int storage_class)
	Set the storage constants to be used for a given storage type for this storage engine. More...
const SE_cost_constants *	get_cost_constants (unsigned int storage_class) const
	Retrieve the cost constants to be used for this storage engine for a specified storage class. More...
SE_cost_constants *	get_cost_constants (unsigned int storage_class)
	Retrieve the cost constants to be used for this storage engine for a specified storage class. More...

Private Member Functions
	Cost_model_se_info (const Cost_model_se_info &)
Cost_model_se_info &	operator= (const Cost_model_se_info &rhs)

Private Attributes
SE_cost_constants *	m_se_cost_constants [MAX_STORAGE_CLASSES]
	Array of cost constant sets for this storage engine. More...

Friends
class	Cost_model_constants

Detailed Description

Class that keeps all cost constants for a storage engine.

Since storage engines can use different types of storage devices, each device type can have its own set of cost constants.

Note

In the initial implementation there will only be one set of cost constants per storage engine.

Constructor & Destructor Documentation

Cost_model_se_info() [1/2]

Cost_model_se_info::Cost_model_se_info

(

)

Constructor that just initializes the class.

~Cost_model_se_info()

Cost_model_se_info::~Cost_model_se_info

(

)

Destructor.

Deletes the allocated cost constant objects.

Cost_model_se_info() [2/2]

Cost_model_se_info::Cost_model_se_info ( const Cost_model_se_info &  )

private

Member Function Documentation

get_cost_constants() [1/2]

SE_cost_constants * Cost_model_se_info::get_cost_constants ( unsigned int  storage_class )

inlineprotected

Retrieve the cost constants to be used for this storage engine for a specified storage class.

Parameters

storage_class

the storage class these cost constants should be used for

get_cost_constants() [2/2]

const SE_cost_constants * Cost_model_se_info::get_cost_constants ( unsigned int  storage_class ) const

inlineprotected

Retrieve the cost constants to be used for this storage engine for a specified storage class.

Parameters

storage_class

the storage class these cost constants should be used for

operator=()

Cost_model_se_info & Cost_model_se_info::operator= ( const Cost_model_se_info &  rhs )

private

set_cost_constants()

void Cost_model_se_info::set_cost_constants ( SE_cost_constants *  cost_constants, unsigned int  storage_class  )

inlineprotected

Set the storage constants to be used for a given storage type for this storage engine.

Parameters

cost_constants	cost constants for the storage engine
storage_class	the storage class these cost constants should be used for

Friends And Related Function Documentation

Cost_model_constants

friend class Cost_model_constants

friend

Member Data Documentation

m_se_cost_constants

SE_cost_constants* Cost_model_se_info::m_se_cost_constants[MAX_STORAGE_CLASSES]

private

Array of cost constant sets for this storage engine.

There will be one set of cost constants for each device type defined for the storage engine.

---

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

• sql/opt_costconstants.h
• sql/opt_costconstants.cc