CoGaDB::BufferManager Class Reference

#include <buffer_manager.hpp>

Collaboration diagram for CoGaDB::BufferManager:

List of all members.

Public Member Functions
bool	pageReplacement ()
int	count () const
void	print () const
BufferObject *	getPages (std::string, std::string)
Static Public Member Functions
static BufferManager *	getInstance ()
	Get instance of BufferManager -> singleton pattern.
Private Member Functions
	BufferManager ()
	Private constructor for singleton pattern.
BufferObject *	createPage (std::string, std::string, int)
	Load page from HDD.
Private Attributes
unsigned int	_maxSize
std::set< BuffObjPtr >	_pages
Static Private Attributes
static BufferManager *	_instance = NULL

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Constructor & Destructor Documentation

CoGaDB::BufferManager::BufferManager

(

)

[private]

Private constructor for singleton pattern.

References _maxSize, _pages, and MAX_PAGES.

Referenced by getInstance().

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Member Function Documentation

int CoGaDB::BufferManager::count

(

)

const

References _pages.

BufferObject * CoGaDB::BufferManager::createPage	(	std::string	table,
		std::string	col,
		int	offset
	)		[private]

Load page from HDD.

References _maxSize, _pages, pageReplacement(), and CoGaDB::BufferObject::setNext().

Referenced by getPages().

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BufferManager * CoGaDB::BufferManager::getInstance

(

)

[static]

Get instance of BufferManager -> singleton pattern.

References _instance, and BufferManager().

Referenced by CoGaDB::RowTable::load().

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BufferObject * CoGaDB::BufferManager::getPages	(	std::string	table,
		std::string	col
	)

References _pages, createPage(), and CoGaDB::BufferObject::prev().

Referenced by CoGaDB::RowTable::load().

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bool CoGaDB::BufferManager::pageReplacement

(

)

TODO: Add implementation

Referenced by createPage().

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void CoGaDB::BufferManager::print

(

)

const

References _pages.

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Member Data Documentation

BufferManager * CoGaDB::BufferManager::_instance = NULL [static, private]

Referenced by getInstance().

unsigned int CoGaDB::BufferManager::_maxSize [private]

Referenced by BufferManager(), and createPage().

std::set<BuffObjPtr> CoGaDB::BufferManager::_pages [private]

B+ tree structure for fast access

Referenced by BufferManager(), count(), createPage(), getPages(), and print().

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

• /home/sebastian/gpudbms/trunk/cogadb/include/persistence/buffer_manager.hpp
• /home/sebastian/gpudbms/trunk/cogadb/src/persistence/buffer_manager.cpp