The bundle with multiple components. More...

#include <bundle.h>

Inheritance diagram for ibis::bundles:

Public Member Functions
	bundles (const ibis::query &, int=0)
	Constructor. More...

	bundles (const ibis::query &, const ibis::bitvector &, int=0)
	Constructor. More...

	bundles (const ibis::part &, const ibis::selectClause &, int=0)
	Constructor. It creates a bundle from all rows of tbl.

virtual void *	columnArray (uint32_t j) const
	Return the pointer to the underlying array used to store the jth column of the bundle. More...

virtual const ibis::column *	columnPointer (uint32_t j) const
	Column pointer.

virtual ibis::TYPE_T	columnType (uint32_t j) const
	Return the type used to store the values of the jth column of the bundle. More...

virtual double	getDouble (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 64-bit floating-point number. More...

virtual float	getFloat (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 32-bit floating-point number. More...

virtual int32_t	getInt (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 32-bit integer. More...

virtual int64_t	getLong (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 64-bit integer. More...

virtual std::string	getString (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a string. More...

virtual uint32_t	getUInt (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 32-bit unsigned integer. More...

virtual uint64_t	getULong (uint32_t, uint32_t) const
	Retrieve the value of i-th row j-th column as a 64-bit unsigned integer. More...

virtual void	print (std::ostream &out) const
	Print out the bundles without RIDs.

virtual void	printAll (std::ostream &out) const
	Print out the bundles with RIDs.

virtual void	printColumnNames (std::ostream &out) const
	Print column names.

virtual void	reorder (const char *)
	Reorder the bundles according to the keys (names) given. More...

virtual uint32_t	size () const
	Return the number of bundles.

virtual long	truncate (uint32_t keep)
	This single-arugment version of the function truncate keeps the first few rows. More...

virtual long	truncate (uint32_t keep, uint32_t start)
	This two-argument version of the function keeps a few rows after a specified starting point. More...

virtual long	truncate (const char *names, uint32_t keep)
	Reorder the bundles according to the keys (names) given. More...

virtual uint32_t	width () const
	Return the width of the bundles.

virtual void	write (const ibis::query &) const
	Write the bundle to the directory for the query `q`.

Public Member Functions inherited from ibis::bundle
const ibis::RIDSet *	getRIDs (uint32_t ind) const
	Return the RIDs of the `ind`th bundle.

const ibis::RIDSet *	getRIDs () const
	Return the pointer to all RIDs.

const ibis::array_t< uint32_t > *	getStarts () const
	Return the pointer to array starts.

uint32_t	numRowsInBundle (uint32_t ind) const
	Compute the number of rows in bundle `ind`.

uint32_t	rowCounts (array_t< uint32_t > &cnt) const
	Compute the number of rows in each group(bundle). More...

void	sortRIDs (uint32_t i, uint32_t j)
	Sort RIDs in the range of [i, j)

void	swapRIDs (uint32_t i, uint32_t j)

Additional Inherited Members
Static Public Member Functions inherited from ibis::bundle
static bundle *	create (const ibis::query &, int=0)
	Create new bundle from a query object. More...

static bundle *	create (const ibis::query &, const ibis::bitvector &, int=0)
	Create a new bundle from previously stored information.

static bundle *	create (const ibis::part &, const ibis::selectClause &, int=0)
	Create a bundle using the all values of the partition.

static const ibis::RIDSet *	readRIDs (const char *dir, const uint32_t i)
	Return the RIDs related to the ith bundle. More...

Protected Member Functions inherited from ibis::bundle
	bundle (const ibis::selectClause &c)

	bundle (const ibis::query &q)

	bundle (const ibis::query &q, const ibis::bitvector &hits)

	bundle (const ibis::part &t, const ibis::selectClause &s)

Protected Attributes inherited from ibis::bundle
const ibis::selectClause &	comps

const char *	id

bool	infile

ibis::RIDSet *	rids

array_t< uint32_t > *	starts

Detailed Description

The bundle with multiple components.

Constructor & Destructor Documentation

ibis::bundles::bundles	(	const ibis::query &	q,
		int	dir = `0`
	)

explicit

Constructor.

It will use the hit vector of the query to generate a new bundle, if it is not able to read the existing bundles.

References ibis::selectClause::aggExpr(), ibis::selectClause::aggName(), ibis::selectClause::aggSize(), bundles(), ibis::fileManager::storage::bytes(), ibis::bitvector::cnt(), ibis::colValues::create(), ibis::query::dir(), ibis::column::elementSize(), ibis::selectClause::getAggregator(), ibis::part::getColumn(), ibis::fileManager::getFile(), ibis::util::getFileSize(), ibis::query::getHitVector(), ibis::query::getNumHits(), ibis::query::id(), ibis::fileManager::instance(), ibis::part::name(), ibis::query::partition(), print(), printAll(), ibis::query::readRIDs(), ibis::array_t< T >::size(), and size().

Referenced by bundles().

ibis::bundles::bundles	(	const ibis::query &	q,
		const ibis::bitvector &	hits,
		int	dir = `0`
	)

Constructor.

It creates a bundle using the hits provided by the caller (instead of from the query object q).

References ibis::selectClause::aggExpr(), ibis::selectClause::aggName(), ibis::selectClause::aggSize(), bundles(), ibis::bitvector::cnt(), ibis::colValues::create(), ibis::selectClause::getAggregator(), ibis::part::getColumn(), ibis::query::id(), ibis::part::name(), ibis::query::partition(), print(), printAll(), ibis::array_t< T >::size(), and size().

Member Function Documentation

virtual void* ibis::bundles::columnArray ( uint32_t ) const

inlinevirtual

Return the pointer to the underlying array used to store the jth column of the bundle.

Reimplemented from ibis::bundle.

virtual ibis::TYPE_T ibis::bundles::columnType ( uint32_t ) const

inlinevirtual

Return the type used to store the values of the jth column of the bundle.

Reimplemented from ibis::bundle.

References ibis::UNKNOWN_TYPE.

double ibis::bundles::getDouble	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 64-bit floating-point number.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

float ibis::bundles::getFloat	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 32-bit floating-point number.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

int32_t ibis::bundles::getInt	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 32-bit integer.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

int64_t ibis::bundles::getLong	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 64-bit integer.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

std::string ibis::bundles::getString	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a string.

Convert the value to its string representation through std::ostringstream.

Reimplemented from ibis::bundle.

uint32_t ibis::bundles::getUInt	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 32-bit unsigned integer.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

uint64_t ibis::bundles::getULong	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

Retrieve the value of i-th row j-th column as a 64-bit unsigned integer.

Return the maximal value defined in the class numeric_limits if indices i and j are out of bounds.

Reimplemented from ibis::bundle.

void ibis::bundles::reorder ( const char * names )

virtual

Reorder the bundles according to the keys (names) given.

If the argument direction is a negative number, the rows are reversed after sorting. Even if no sorting is done, the reversal of rows is still performed.

turn counts back into starting positions (starts)

Implements ibis::bundle.

References ibis::array_t< T >::find(), ibis::array_t< T >::push_back(), ibis::util::reorder(), ibis::array_t< T >::reserve(), ibis::nameList::select(), ibis::array_t< T >::size(), ibis::array_t< T >::sort(), ibis::array_t< T >::swap(), and ibis::TYPESTRING.

long ibis::bundles::truncate ( uint32_t keep )

virtual

This single-arugment version of the function truncate keeps the first few rows.

Implements ibis::bundle.

long ibis::bundles::truncate	(	uint32_t	keep,
		uint32_t	start
	)

virtual

This two-argument version of the function keeps a few rows after a specified starting point.

Implements ibis::bundle.

long ibis::bundles::truncate	(	const char *	names,
		uint32_t	keep
	)

virtual

Reorder the bundles according to the keys (names) given.

Keep only the first keep elements. If direction < 0, keep the largest ones, otherwise keep the smallest ones.

turn counts back into starting positions (starts)

Implements ibis::bundle.

References ibis::array_t< T >::bottomk(), ibis::array_t< T >::find(), ibis::array_t< T >::push_back(), ibis::util::reorder(), ibis::array_t< T >::reserve(), ibis::nameList::select(), ibis::array_t< T >::size(), ibis::array_t< T >::sort(), ibis::array_t< T >::swap(), and ibis::TYPESTRING.

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

bundle.h
bundle-140522.cpp
bundle.cpp



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Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation