CDBTransaction< Parent, CommitTarget > Class Template Reference

#include <dbwrapper.h>

Classes
struct	DataStreamCmp
struct	ValueHolder
struct	ValueHolderImpl

Public Member Functions
	CDBTransaction (Parent &_parent, CommitTarget &_commitTarget, int _nVersion)
template<typename K , typename V >
void	Write (const K &key, const V &v)
template<typename V >
void	Write (const CDataStream &ssKey, const V &v)
template<typename K , typename V >
bool	Read (const K &key, V &value)
template<typename V >
bool	Read (const CDataStream &ssKey, V &value)
template<typename K >
bool	Exists (const K &key)
bool	Exists (const CDataStream &ssKey)
template<typename K >
void	Erase (const K &key)
void	Erase (const CDataStream &ssKey)
void	Clear ()
void	Commit ()
bool	IsClean ()
size_t	GetMemoryUsage () const
CDBTransactionIterator< CDBTransaction > *	NewIterator ()
std::unique_ptr< CDBTransactionIterator< CDBTransaction > >	NewIteratorUniquePtr ()

Protected Types
typedef std::unique_ptr< ValueHolder >	ValueHolderPtr
typedef std::map< CDataStream, ValueHolderPtr, DataStreamCmp >	WritesMap
typedef std::set< CDataStream, DataStreamCmp >	DeletesSet

Static Protected Member Functions
template<typename K >
static CDataStream	KeyToDataStream (const K &key, int nVersion)

Protected Attributes
Parent &	parent
CommitTarget &	commitTarget
ssize_t	memoryUsage {0}
WritesMap	writes
DeletesSet	deletes
int	nVersion

Friends
class	CDBTransactionIterator< CDBTransaction >

Detailed Description

template<typename Parent, typename CommitTarget>
class CDBTransaction< Parent, CommitTarget >

Definition at line 532 of file dbwrapper.h.

Member Typedef Documentation

DeletesSet

template<typename Parent , typename CommitTarget >

typedef std::set<CDataStream, DataStreamCmp> CDBTransaction< Parent, CommitTarget >::DeletesSet

protected

Definition at line 581 of file dbwrapper.h.

ValueHolderPtr

template<typename Parent , typename CommitTarget >

typedef std::unique_ptr<ValueHolder> CDBTransaction< Parent, CommitTarget >::ValueHolderPtr

protected

Definition at line 556 of file dbwrapper.h.

WritesMap

template<typename Parent , typename CommitTarget >

typedef std::map<CDataStream, ValueHolderPtr, DataStreamCmp> CDBTransaction< Parent, CommitTarget >::WritesMap

protected

Definition at line 580 of file dbwrapper.h.

Constructor & Destructor Documentation

CDBTransaction()

template<typename Parent , typename CommitTarget >

CDBTransaction< Parent, CommitTarget >::CDBTransaction ( Parent &  _parent, CommitTarget &  _commitTarget, int  _nVersion  )

inline

Definition at line 588 of file dbwrapper.h.

Member Function Documentation

Clear()

template<typename Parent , typename CommitTarget >

void CDBTransaction< Parent, CommitTarget >::Clear ( )

inline

Definition at line 675 of file dbwrapper.h.

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Commit()

template<typename Parent , typename CommitTarget >

void CDBTransaction< Parent, CommitTarget >::Commit ( )

inline

Definition at line 682 of file dbwrapper.h.

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Erase() [1/2]

template<typename Parent , typename CommitTarget >

void CDBTransaction< Parent, CommitTarget >::Erase ( const CDataStream &  ssKey )

inline

Definition at line 663 of file dbwrapper.h.

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Erase() [2/2]

template<typename Parent , typename CommitTarget >

template<typename K >

void CDBTransaction< Parent, CommitTarget >::Erase ( const K &  key )

inline

Definition at line 658 of file dbwrapper.h.

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Exists() [1/2]

template<typename Parent , typename CommitTarget >

bool CDBTransaction< Parent, CommitTarget >::Exists ( const CDataStream &  ssKey )

inline

Definition at line 644 of file dbwrapper.h.

Exists() [2/2]

template<typename Parent , typename CommitTarget >

template<typename K >

bool CDBTransaction< Parent, CommitTarget >::Exists ( const K &  key )

inline

Definition at line 639 of file dbwrapper.h.

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GetMemoryUsage()

template<typename Parent , typename CommitTarget >

size_t CDBTransaction< Parent, CommitTarget >::GetMemoryUsage ( ) const

inline

Definition at line 698 of file dbwrapper.h.

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IsClean()

template<typename Parent , typename CommitTarget >

bool CDBTransaction< Parent, CommitTarget >::IsClean ( )

inline

Definition at line 693 of file dbwrapper.h.

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KeyToDataStream()

template<typename Parent , typename CommitTarget >

template<typename K >

static CDataStream CDBTransaction< Parent, CommitTarget >::KeyToDataStream ( const K &  key, int  nVersion  )

inlinestaticprotected

Definition at line 572 of file dbwrapper.h.

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NewIterator()

template<typename Parent , typename CommitTarget >

CDBTransactionIterator<CDBTransaction>* CDBTransaction< Parent, CommitTarget >::NewIterator ( )

inline

Definition at line 712 of file dbwrapper.h.

NewIteratorUniquePtr()

template<typename Parent , typename CommitTarget >

std::unique_ptr<CDBTransactionIterator<CDBTransaction> > CDBTransaction< Parent, CommitTarget >::NewIteratorUniquePtr ( )

inline

Definition at line 716 of file dbwrapper.h.

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Read() [1/2]

template<typename Parent , typename CommitTarget >

template<typename V >

bool CDBTransaction< Parent, CommitTarget >::Read ( const CDataStream &  ssKey, V &  value  )

inline

Definition at line 619 of file dbwrapper.h.

Read() [2/2]

template<typename Parent , typename CommitTarget >

template<typename K , typename V >

bool CDBTransaction< Parent, CommitTarget >::Read ( const K &  key, V &  value  )

inline

Definition at line 613 of file dbwrapper.h.

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Write() [1/2]

template<typename Parent , typename CommitTarget >

template<typename V >

void CDBTransaction< Parent, CommitTarget >::Write ( const CDataStream &  ssKey, const V &  v  )

inline

Definition at line 597 of file dbwrapper.h.

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Write() [2/2]

template<typename Parent , typename CommitTarget >

template<typename K , typename V >

void CDBTransaction< Parent, CommitTarget >::Write ( const K &  key, const V &  v  )

inline

Definition at line 591 of file dbwrapper.h.

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Friends And Related Function Documentation

CDBTransactionIterator< CDBTransaction >

template<typename Parent , typename CommitTarget >

friend class CDBTransactionIterator< CDBTransaction >

friend

Definition at line 515 of file dbwrapper.h.

Member Data Documentation

commitTarget

template<typename Parent , typename CommitTarget >

CommitTarget& CDBTransaction< Parent, CommitTarget >::commitTarget

protected

Definition at line 537 of file dbwrapper.h.

deletes

template<typename Parent , typename CommitTarget >

DeletesSet CDBTransaction< Parent, CommitTarget >::deletes

protected

Definition at line 584 of file dbwrapper.h.

memoryUsage

template<typename Parent , typename CommitTarget >

ssize_t CDBTransaction< Parent, CommitTarget >::memoryUsage {0}

protected

Definition at line 538 of file dbwrapper.h.

nVersion

template<typename Parent , typename CommitTarget >

int CDBTransaction< Parent, CommitTarget >::nVersion

protected

Definition at line 585 of file dbwrapper.h.

parent

template<typename Parent , typename CommitTarget >

Parent& CDBTransaction< Parent, CommitTarget >::parent

protected

Definition at line 536 of file dbwrapper.h.

writes

template<typename Parent , typename CommitTarget >

WritesMap CDBTransaction< Parent, CommitTarget >::writes

protected

Definition at line 583 of file dbwrapper.h.

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

• src/dbwrapper.h