#include <delta_compressed_column.hpp>

Inheritance diagram for CoGaDB::DeltaCompressedColumn< std::string >:

Collaboration diagram for CoGaDB::DeltaCompressedColumn< std::string >:

Public Member Functions
	DeltaCompressedColumn (const std::string &name, AttributeType db_type)
	~DeltaCompressedColumn ()
bool	insert (const boost::any &new_Value)
	appends a value new_Value to end of column
bool	insert (const std::string &new_value)
template<typename InputIterator >
bool	insert (InputIterator first, InputIterator last)
bool	update (TID tid, const boost::any &new_value)
	updates the value on position tid with a value new_Value
bool	update (PositionListPtr tid, const boost::any &new_value)
	updates the values specified by the position list with a value new_Value
bool	remove (TID tid)
	deletes the value on position tid
bool	remove (PositionListPtr tid)
	deletes the values defined in the position list
bool	clearContent ()
	deletes all values stored in the column
const boost::any	get (TID tid)
	generic function for fetching a value form a column (slow)
void	print () const throw ()
	prints the content of a column
size_t	size () const throw ()
	returns the number of values (rows) in a column
unsigned int	getSizeinBytes () const throw ()
	returns the size in bytes the column consumes in main memory
const ColumnPtr	copy () const
	virtual copy constructor
bool	store (const std::string &path)
	store a column on the disc
bool	load (const std::string &path)
	load column from disc
std::string &	operator[] (const int index)
	defines operator[] for this class, which enables the user to thread all typed columns as arrays.
	DeltaCompressedColumn (const std::string &name, AttributeType db_type)
	~DeltaCompressedColumn ()
bool	insert (const boost::any &new_Value)
	appends a value new_Value to end of column
bool	insert (const std::string &new_value)
template<typename InputIterator >
bool	insert (InputIterator first, InputIterator last)
bool	update (TID tid, const boost::any &new_value)
	updates the value on position tid with a value new_Value
bool	update (PositionListPtr tid, const boost::any &new_value)
	updates the values specified by the position list with a value new_Value
bool	remove (TID tid)
	deletes the value on position tid
bool	remove (PositionListPtr tid)
	deletes the values defined in the position list
bool	clearContent ()
	deletes all values stored in the column
const boost::any	get (TID tid)
	generic function for fetching a value form a column (slow)
void	print () const throw ()
	prints the content of a column
size_t	size () const throw ()
	returns the number of values (rows) in a column
unsigned int	getSizeinBytes () const throw ()
	returns the size in bytes the column consumes in main memory
const ColumnPtr	copy () const
	virtual copy constructor
bool	store (const std::string &path)
	store a column on the disc
bool	load (const std::string &path)
	load column from disc
std::string &	operator[] (const int index)
	defines operator[] for this class, which enables the user to thread all typed columns as arrays.
Private Member Functions
std::string	uncompress (TID tid)
void	compress_update (TID tid, std::string value)
std::string	uncompress (TID tid)
void	compress_update (TID tid, std::string value)
Private Attributes
std::vector< std::string >	cvalues_
std::string	hack_last_uncompressed

template<>
class CoGaDB::DeltaCompressedColumn< std::string >

Constructor & Destructor Documentation

CoGaDB::DeltaCompressedColumn< std::string >::DeltaCompressedColumn	(	const std::string &	name,
		AttributeType	db_type
	)

CoGaDB::DeltaCompressedColumn< std::string >::~DeltaCompressedColumn ( )

CoGaDB::DeltaCompressedColumn< std::string >::DeltaCompressedColumn	(	const std::string &	name,
		AttributeType	db_type
	)

CoGaDB::DeltaCompressedColumn< std::string >::~DeltaCompressedColumn ( )

Member Function Documentation

bool CoGaDB::DeltaCompressedColumn< std::string >::clearContent ( ) [virtual]

deletes all values stored in the column

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::clearContent ( ) [virtual]

deletes all values stored in the column

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_.

void CoGaDB::DeltaCompressedColumn< std::string >::compress_update	(	TID	tid,
		std::string	value
	)		`[private]`

void CoGaDB::DeltaCompressedColumn< std::string >::compress_update	(	TID	tid,
		std::string	value
	)		`[private]`

References CoGaDB::DeltaCompressedColumn< T >::cvalues_, and CoGaDB::DeltaCompressedColumn< T >::uncompress().

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const ColumnPtr CoGaDB::DeltaCompressedColumn< std::string >::copy ( ) const [virtual]

virtual copy constructor

Returns:: a ColumnPtr to an exakt copy of the current column

Implements CoGaDB::CompressedColumn< std::string >.

const ColumnPtr CoGaDB::DeltaCompressedColumn< std::string >::copy ( ) const [virtual]

virtual copy constructor

Returns:: a ColumnPtr to an exakt copy of the current column

Implements CoGaDB::CompressedColumn< std::string >.

const boost::any CoGaDB::DeltaCompressedColumn< std::string >::get ( TID tid ) [virtual]

generic function for fetching a value form a column (slow)

check whether the object is valid (e.g., when a tid is not valid, then the returned object is invalid as well)

Returns:: object of type boost::any containing the value on position tid

Implements CoGaDB::CompressedColumn< std::string >.

const boost::any CoGaDB::DeltaCompressedColumn< std::string >::get ( TID tid ) [virtual]

generic function for fetching a value form a column (slow)

check whether the object is valid (e.g., when a tid is not valid, then the returned object is invalid as well)

Returns:: object of type boost::any containing the value on position tid

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_, and CoGaDB::ColumnBase::name_.

unsigned int CoGaDB::DeltaCompressedColumn< std::string >::getSizeinBytes ( ) const throw () [virtual]

returns the size in bytes the column consumes in main memory

Implements CoGaDB::CompressedColumn< std::string >.

uint CoGaDB::DeltaCompressedColumn< std::string >::getSizeinBytes ( ) const throw () [virtual]

returns the size in bytes the column consumes in main memory

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_.

bool CoGaDB::DeltaCompressedColumn< std::string >::insert ( const boost::any & new_Value ) [virtual]

appends a value new_Value to end of column

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::insert ( const std::string & new_value ) [virtual]

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::insert ( const boost::any & new_Value ) [virtual]

appends a value new_Value to end of column

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::insert().

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template<typename InputIterator >

bool CoGaDB::DeltaCompressedColumn< std::string >::insert	(	InputIterator	first,
		InputIterator	last
	)

bool CoGaDB::DeltaCompressedColumn< std::string >::insert ( const std::string & new_value ) [virtual]

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::compress_update(), and CoGaDB::DeltaCompressedColumn< T >::cvalues_.

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template<typename InputIterator >

bool CoGaDB::DeltaCompressedColumn< std::string >::insert	(	InputIterator	first,
		InputIterator	last
	)

References CoGaDB::DeltaCompressedColumn< T >::insert().

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bool CoGaDB::DeltaCompressedColumn< std::string >::load ( const std::string & path ) [virtual]

load column from disc

calling load on a column that is not empty yields undefined behaviour

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::load ( const std::string & path ) [virtual]

load column from disc

calling load on a column that is not empty yields undefined behaviour

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_, and CoGaDB::ColumnBase::name_.

std::string& CoGaDB::DeltaCompressedColumn< std::string >::operator[] ( const int index ) [virtual]

defines operator[] for this class, which enables the user to thread all typed columns as arrays.

Note that this method is pure virtual, so it has to be defined in a derived class.

Returns:: a reference to the value at position index

Implements CoGaDB::CompressedColumn< std::string >.

std::string & CoGaDB::DeltaCompressedColumn< std::string >::operator[] ( const int index ) [virtual]

defines operator[] for this class, which enables the user to thread all typed columns as arrays.

Note that this method is pure virtual, so it has to be defined in a derived class.

Returns:: a reference to the value at position index

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::hack_last_uncompressed, and CoGaDB::DeltaCompressedColumn< T >::uncompress().

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void CoGaDB::DeltaCompressedColumn< std::string >::print ( ) const throw () [virtual]

prints the content of a column

Implements CoGaDB::CompressedColumn< std::string >.

void CoGaDB::DeltaCompressedColumn< std::string >::print ( ) const throw () [virtual]

prints the content of a column

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::ColumnBase::name_.

bool CoGaDB::DeltaCompressedColumn< std::string >::remove ( TID tid ) [virtual]

deletes the value on position tid

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::remove ( PositionListPtr tid ) [virtual]

deletes the values defined in the position list

assumes tid list is sorted ascending

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::remove ( TID tid ) [virtual]

deletes the value on position tid

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::compress_update(), CoGaDB::DeltaCompressedColumn< T >::cvalues_, and CoGaDB::DeltaCompressedColumn< T >::uncompress().

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bool CoGaDB::DeltaCompressedColumn< std::string >::remove ( PositionListPtr tid ) [virtual]

deletes the values defined in the position list

assumes tid list is sorted ascending

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

size_t CoGaDB::DeltaCompressedColumn< std::string >::size ( ) const throw () [virtual]

returns the number of values (rows) in a column

Implements CoGaDB::CompressedColumn< std::string >.

size_t CoGaDB::DeltaCompressedColumn< std::string >::size ( ) const throw () [virtual]

returns the number of values (rows) in a column

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_.

bool CoGaDB::DeltaCompressedColumn< std::string >::store ( const std::string & path ) [virtual]

store a column on the disc

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::store ( const std::string & path ) [virtual]

store a column on the disc

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::cvalues_, and CoGaDB::ColumnBase::name_.

std::string CoGaDB::DeltaCompressedColumn< std::string >::uncompress ( TID tid ) [private]

References CoGaDB::DeltaCompressedColumn< T >::cvalues_.

bool CoGaDB::DeltaCompressedColumn< std::string >::update	(	TID	tid,
		const boost::any &	new_Value
	)		`[virtual]`

updates the value on position tid with a value new_Value

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::update	(	PositionListPtr	tids,
		const boost::any &	new_value
	)		`[virtual]`

updates the values specified by the position list with a value new_Value

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

bool CoGaDB::DeltaCompressedColumn< std::string >::update	(	TID	tid,
		const boost::any &	new_Value
	)		`[virtual]`

updates the value on position tid with a value new_Value

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::DeltaCompressedColumn< T >::compress_update(), CoGaDB::DeltaCompressedColumn< T >::cvalues_, CoGaDB::ColumnBase::name_, and CoGaDB::DeltaCompressedColumn< T >::uncompress().

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bool CoGaDB::DeltaCompressedColumn< std::string >::update	(	PositionListPtr	tids,
		const boost::any &	new_value
	)		`[virtual]`

updates the values specified by the position list with a value new_Value

Returns:: true for sucess and false in case an error occured

Implements CoGaDB::CompressedColumn< std::string >.

References CoGaDB::ColumnBase::name_, and CoGaDB::DeltaCompressedColumn< T >::update().

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Member Data Documentation

std::vector< std::string > CoGaDB::DeltaCompressedColumn< std::string >::cvalues_ [private]

std::string CoGaDB::DeltaCompressedColumn< std::string >::hack_last_uncompressed [private]

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

/home/sebastian/gpudbms/trunk/cogadb/include/compression/delta_compressed_column.hpp
/home/sebastian/gpudbms/trunk/cogadb/include/compression/tmp/db2/compression/delta_compressed_column.hpp

Public Member Functions

Private Member Functions

Private Attributes

template<> class CoGaDB::DeltaCompressedColumn< std::string >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<>
class CoGaDB::DeltaCompressedColumn< std::string >