#include <hashdirpage.h>

Inheritance diagram for HashDirPage:

Collaboration diagram for HashDirPage:

Public Member Functions
	HashDirPage ()=delete
	Constructor.

	~HashDirPage ()

void	setEntry (SlotId slot_id, PageNum page_num)
	Setter function for an entry identified by SlotId.

PageNum	getEntry (SlotId slot_id)
	Getter function for retrieving PageNum entry identified by SlotId.

Public Member Functions inherited from Page
	Page ()
	Constructor.

	~Page ()
	Destructor.

char *	getData ()
	Get function for the data char array.

Additional Inherited Members
Protected Attributes inherited from Page
char	data [PAGE_SIZE]
	char array that stores the page data. Derived classes could map appropriate structures on it.

Detailed Description

SwatDB HashDirPage Class. HashDirPage inherits from base Page class and instantiates HashDirPage, collection of which, form the directory part of HashIndexFile.

Constructor & Destructor Documentation

◆ HashDirPage()

HashDirPage::HashDirPage ( )

delete

Constructor.

Constructor should never be called. It should be always the case that base class Page constructor is called by the BufferManager when initializing bufferpool. HashDirPage Pointer is casted to whatever Page pointer returned by the BufferManager

◆ ~HashDirPage()

HashDirPage::~HashDirPage ( )

inline

Destructor

Member Function Documentation

◆ getEntry()

PageNum HashDirPage::getEntry ( SlotId slot_id )

Getter function for retrieving PageNum entry identified by SlotId.

Precondition: The provided SlotId is valid (less than MAX_HASH_DIRSLOT).

Postcondition: Appropriate PageNum is returned.

Parameters

slot_id SlotId of the Entry to be retrieved

Exceptions

InvalidSlotHashDirPage If the provided slot_id is greater than or equal to MAX_HASH_DIRSLOT.

◆ setEntry()

void HashDirPage::setEntry	(	SlotId	slot_id,
		PageNum	page_num
	)

Setter function for an entry identified by SlotId.

Precondition: The provided SlotId is valid (less than MAX_HASH_DIRSLOT).

Postcondition: The entry at the given slot is set to the given PageNum.