Tools::ExternalSort Class Reference

#include <ExternalSort.h>

List of all members.

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Detailed Description

Definition at line 27 of file ExternalSort.h.

Public Member Functions
	ExternalSort (Tools::IObjectStream &source, unsigned long bufferSize)
	ExternalSort (Tools::IObjectStream &source, Tools::IObjectComparator &comp, unsigned long bufferSize)
virtual	~ExternalSort ()
virtual IObject *	getNext ()
virtual bool	hasNext () throw ()
virtual unsigned long	size () throw ()
virtual void	rewind ()
Private Member Functions
void	initializeRuns (std::deque< SmartPointer< TemporaryFile > > &runs)
void	mergeRuns ()
Private Attributes
std::priority_queue< PQEntry *, std::vector< PQEntry * >, PQEntry::ascendingComparator >	m_buffer
unsigned long	m_cMaxBufferSize
bool	m_bFitsInBuffer
unsigned long	m_cNumberOfSortedRecords
unsigned long	m_cNumberOfReturnedRecords
IObjectStream *	m_pExternalSource
IObject *	m_pTemplateRecord
IObjectComparator *	m_pComparator
SmartPointer< TemporaryFile >	m_spSortedFile
Classes
class	PQEntry

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Constructor & Destructor Documentation

Tools::ExternalSort::ExternalSort	(	Tools::IObjectStream &	source,
		unsigned long	bufferSize
	)

Tools::ExternalSort::ExternalSort	(	Tools::IObjectStream &	source,
		Tools::IObjectComparator &	comp,
		unsigned long	bufferSize
	)

virtual Tools::ExternalSort::~ExternalSort

(

)

[virtual]

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Member Function Documentation

virtual IObject* Tools::ExternalSort::getNext

(

)

[virtual]

virtual bool Tools::ExternalSort::hasNext

(

)

throw () [virtual]

virtual unsigned long Tools::ExternalSort::size

(

)

throw () [virtual]

virtual void Tools::ExternalSort::rewind

(

)

[virtual]

void Tools::ExternalSort::initializeRuns

(

std::deque< SmartPointer< TemporaryFile > > &

runs

)

[private]

void Tools::ExternalSort::mergeRuns

(

)

[private]

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Member Data Documentation

std::priority_queue< PQEntry*, std::vector<PQEntry*>, PQEntry::ascendingComparator > Tools::ExternalSort::m_buffer [private]

Definition at line 79 of file ExternalSort.h.

unsigned long Tools::ExternalSort::m_cMaxBufferSize [private]

Definition at line 81 of file ExternalSort.h.

bool Tools::ExternalSort::m_bFitsInBuffer [private]

Definition at line 82 of file ExternalSort.h.

unsigned long Tools::ExternalSort::m_cNumberOfSortedRecords [private]

Definition at line 83 of file ExternalSort.h.

unsigned long Tools::ExternalSort::m_cNumberOfReturnedRecords [private]

Definition at line 84 of file ExternalSort.h.

IObjectStream* Tools::ExternalSort::m_pExternalSource [private]

Definition at line 86 of file ExternalSort.h.

IObject* Tools::ExternalSort::m_pTemplateRecord [private]

Definition at line 87 of file ExternalSort.h.

IObjectComparator* Tools::ExternalSort::m_pComparator [private]

Definition at line 88 of file ExternalSort.h.

SmartPointer<TemporaryFile> Tools::ExternalSort::m_spSortedFile [private]

Definition at line 89 of file ExternalSort.h.

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

• src/core/spatialindex/tools/ExternalSort.h

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