Hypertable::CellStoreScanner< IndexT > Class Template Reference

Provides the ability to scan over (query) a cell store. More...

#include <CellStoreScanner.h>

Inheritance diagram for Hypertable::CellStoreScanner< IndexT >:

Collaboration diagram for Hypertable::CellStoreScanner< IndexT >:

Public Member Functions
	CellStoreScanner (CellStorePtr &&cellstore, ScanContext *scan_ctx, IndexT *indexp=0)
virtual	~CellStoreScanner ()
void	forward () override
bool	get (Key &key, ByteString &value) override
int64_t	get_disk_read () override
Public Member Functions inherited from Hypertable::CellListScanner
	CellListScanner ()
	CellListScanner (ScanContext *scan_ctx)
virtual	~CellListScanner ()
ScanContext *	scan_context ()
void	add_disk_read (int64_t amount)

Private Attributes
CellStorePtr	m_cellstore
std::unique_ptr < CellStoreScannerInterval >	m_interval_scanners [3]
size_t	m_interval_index {}
size_t	m_interval_max {}
DynamicBuffer	m_key_buf
bool	m_keys_only {}
bool	m_eos {}
bool	m_decrement_blockindex_refcount {}

Additional Inherited Members
Protected Attributes inherited from Hypertable::CellListScanner
uint64_t	m_disk_read {}
ScanContext *	m_scan_context_ptr {}

Detailed Description

template<typename IndexT>
class Hypertable::CellStoreScanner< IndexT >

Provides the ability to scan over (query) a cell store.

Template Parameters

IndexT

Type of block index

Definition at line 46 of file CellStoreScanner.h.

Constructor & Destructor Documentation

template<typename IndexT >

CellStoreScanner::CellStoreScanner	(	CellStorePtr &&	cellstore,
		ScanContext *	scan_ctx,
		IndexT *	indexp = 0
	)

Fetch ROW deletes

Fetch COLUMN FAMILY deletes

Definition at line 44 of file CellStoreScanner.cc.

template<typename IndexT >

CellStoreScanner::~CellStoreScanner ( )

virtual

Definition at line 153 of file CellStoreScanner.cc.

Member Function Documentation

template<typename IndexT >

void CellStoreScanner::forward ( )

overridevirtual

Implements Hypertable::CellListScanner.

Definition at line 198 of file CellStoreScanner.cc.

template<typename IndexT >

bool CellStoreScanner::get ( Key &  key, ByteString &  value  )

overridevirtual

Implements Hypertable::CellListScanner.

Definition at line 161 of file CellStoreScanner.cc.

template<typename IndexT >

int64_t CellStoreScanner::get_disk_read ( )

overridevirtual

Implements Hypertable::CellListScanner.

Definition at line 188 of file CellStoreScanner.cc.

Member Data Documentation

template<typename IndexT >

CellStorePtr Hypertable::CellStoreScanner< IndexT >::m_cellstore

private

Definition at line 57 of file CellStoreScanner.h.

template<typename IndexT >

bool Hypertable::CellStoreScanner< IndexT >::m_decrement_blockindex_refcount {}

private

Definition at line 64 of file CellStoreScanner.h.

template<typename IndexT >

bool Hypertable::CellStoreScanner< IndexT >::m_eos {}

private

Definition at line 63 of file CellStoreScanner.h.

template<typename IndexT >

size_t Hypertable::CellStoreScanner< IndexT >::m_interval_index {}

private

Definition at line 59 of file CellStoreScanner.h.

template<typename IndexT >

size_t Hypertable::CellStoreScanner< IndexT >::m_interval_max {}

private

Definition at line 60 of file CellStoreScanner.h.

template<typename IndexT >

std::unique_ptr<CellStoreScannerInterval> Hypertable::CellStoreScanner< IndexT >::m_interval_scanners[3]

private

Definition at line 58 of file CellStoreScanner.h.

template<typename IndexT >

DynamicBuffer Hypertable::CellStoreScanner< IndexT >::m_key_buf

private

Definition at line 61 of file CellStoreScanner.h.

template<typename IndexT >

bool Hypertable::CellStoreScanner< IndexT >::m_keys_only {}

private

Definition at line 62 of file CellStoreScanner.h.

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

• /home/doug/src/hypertable/src/cc/Hypertable/RangeServer/CellStoreScanner.h
• /home/doug/src/hypertable/src/cc/Hypertable/RangeServer/CellStoreScanner.cc