te::qt::widgets::Promoter Class Reference

A class used for logical ordering of rows. More...

#include <Promoter.h>

Public Member Functions
void	cleanLogRowsAndProcessKeys ()
void	cleanPreproccessKeys ()
	Cleans the storage of the primary keys. Next time enabled, will be necessary to proccess all primary keys again. More...
size_t	getLogicalRow (const size_t &visualRow)
	Returns the logical position of the row visualRow. More...
size_t	map2Row (te::da::ObjectId *oid)
	Given an object id returns its row. More...
void	preProcessKeys (te::da::DataSet *dset, const std::vector< size_t > &pkeys)
	Proccess primary keys and stores it. More...
void	promote (const te::da::ObjectIdSet *oids)
	Promotes the rows identified by oids primary keys. More...
	Promoter ()
	Constructor. More...
void	resetPromotion ()
	Returns the rows to its original positions. More...
	~Promoter ()
	Destructor. More...

Protected Attributes
std::vector< size_t >	m_logicalRows
	Map original row to logical postion. More...
std::map< std::string, size_t >	m_PkeysRows
	Map object id to its position in DataSet. More...

Detailed Description

A class used for logical ordering of rows.

The promotion just group a set of ObjectIds on the begining of table. When enable promotion requires some time to preproccess the primary keys of each data on the DataSet. Next time promotion is instantaneous.

Note

When enabled, promotion consumes additional memory, because each primary key is stored.

Definition at line 69 of file Promoter.h.

Constructor & Destructor Documentation

te::qt::widgets::Promoter::Promoter

(

)

Constructor.

te::qt::widgets::Promoter::~Promoter

(

)

Destructor.

Member Function Documentation

void te::qt::widgets::Promoter::cleanLogRowsAndProcessKeys

(

)

Cleans pre processed keys and vector of mapping logical rows.

void te::qt::widgets::Promoter::cleanPreproccessKeys

(

)

Cleans the storage of the primary keys. Next time enabled, will be necessary to proccess all primary keys again.

size_t te::qt::widgets::Promoter::getLogicalRow

(

const size_t &

visualRow

)

Returns the logical position of the row visualRow.

Parameters

visualRow

The visible row.

size_t te::qt::widgets::Promoter::map2Row

(

te::da::ObjectId *

oid

)

Given an object id returns its row.

Parameters

oid	Identifier of some row.

Returns

Position of the row identified by oid.

void te::qt::widgets::Promoter::preProcessKeys	(	te::da::DataSet *	dset,
		const std::vector< size_t > &	pkeys
	)

Proccess primary keys and stores it.

Parameters

dset	Dataset to be used.
pkeys	Positions of the primary keys columns.

Note

This operation DOES NOT take the ownership of dset.

void te::qt::widgets::Promoter::promote

(

const te::da::ObjectIdSet *

oids

)

Promotes the rows identified by oids primary keys.

Parameters

oids	Set of object ids to be promoted.

void te::qt::widgets::Promoter::resetPromotion

(

)

Returns the rows to its original positions.

Member Data Documentation

std::vector<size_t> te::qt::widgets::Promoter::m_logicalRows

protected

Map original row to logical postion.

Definition at line 136 of file Promoter.h.

std::map<std::string, size_t> te::qt::widgets::Promoter::m_PkeysRows

protected

Map object id to its position in DataSet.

Definition at line 134 of file Promoter.h.

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

• /home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/qt/widgets/table/Promoter.h