The bundle with only one component. More...

#include <bundle.h>

Inheritance diagram for ibis::bundle1:

Public Member Functions
	bundle1 (const ibis::query &, int=0)
	Constructor. More...

	bundle1 (const ibis::query &, const ibis::bitvector &, int=0)
	Constructor. It creates a bundle using the rows selected by hits.

	bundle1 (const ibis::part &, const ibis::selectClause &, int=0)
	Constructor. It creates the bundle using 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 value. 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 value. 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 the bundle values to the specified output stream. More...

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

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

virtual void	reorder (const char *)
	Reorder the values. More...

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

virtual long	truncate (uint32_t)
	This single-argument version keep the first few records.

virtual long	truncate (uint32_t, uint32_t)
	This two-argument version keeps a few records starting at a user-specified row number. More...

virtual long	truncate (const char *, uint32_t keep)
	Truncate the list of bundle based on specified keys.

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`.

virtual	~bundle1 ()
	Destructor.

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 only one component.

Constructor & Destructor Documentation

ibis::bundle1::bundle1	(	const ibis::query &	q,
		int	dir = `0`
	)

explicit

Constructor.

It attempt to read to read a bundle from files first. If that fails, it attempts to create a bundle based on the current hits.

References ibis::selectClause::aggExpr(), ibis::selectClause::aggName(), ibis::selectClause::aggSize(), bundle1(), ibis::fileManager::storage::bytes(), ibis::bitvector::cnt(), ibis::colValues::create(), ibis::query::dir(), ibis::column::elementSize(), ibis::selectClause::empty(), ibis::part::getColumn(), ibis::fileManager::getFile(), ibis::util::getFileSize(), ibis::query::getHitVector(), ibis::query::getNumHits(), ibis::query::id(), ibis::fileManager::instance(), ibis::query::partition(), print(), printAll(), ibis::query::readRIDs(), ibis::array_t< T >::size(), and ibis::bitvector::sloppyCount().

Referenced by bundle1().

Member Function Documentation

virtual void* ibis::bundle1::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::bundle1::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::bundle1::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 value.

Return the maximal value defined in the class numeric_limits if either i or j is out of bounds.

Reimplemented from ibis::bundle.

float ibis::bundle1::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 value.

Return the maximal value defined in the class numeric_limits if wither i or j is out of bounds.

Reimplemented from ibis::bundle.

int32_t ibis::bundle1::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 either i or j is out of bounds.

Reimplemented from ibis::bundle.

int64_t ibis::bundle1::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 either i or j is out of bounds.

Reimplemented from ibis::bundle.

std::string ibis::bundle1::getString	(	uint32_t	i,
		uint32_t	j
	)		const

virtual

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

Returns an empty string if either i or j is out of bounds, which can not be distinguished from an actual empty string. This function converts a value to its string representation through std::ostringstream.

Reimplemented from ibis::bundle.

uint32_t ibis::bundle1::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 either i or j is out of bounds.

Reimplemented from ibis::bundle.

uint64_t ibis::bundle1::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 either i or j is out of bounds.

Reimplemented from ibis::bundle.

void ibis::bundle1::print ( std::ostream & out ) const

virtual

Print the bundle values to the specified output stream.

print out the bundles without RIDs.

Implements ibis::bundle.

Referenced by bundle1().

virtual void ibis::bundle1::reorder ( const char * )

inlinevirtual

Reorder the values.

Since there is only one column in the bundle, the only valid name that can be passed in is the name of the sole column. Because the bundle is already sorted according to this column, there is nothing to do expect to reverse the order of the values based on the second argument.

Implements ibis::bundle.

long ibis::bundle1::truncate	(	uint32_t	keep,
		uint32_t	start
	)

virtual

This two-argument version keeps a few records starting at a user-specified row number.

Note that the row number starts with 0, i.e., the first row has the row number 0.

Implements ibis::bundle.

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

bundle.h
bundle-140522.cpp
bundle.cpp



	Contact us Disclaimers FastBit source code FastBit mailing list archive

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation