Class which "inverts the file". More...

#include <honey_inverter.h>

Collaboration diagram for HoneyInverter:

Classes
class	PostingChanges
	Class for storing the changes in frequencies for a term. More...

Public Member Functions
void	add_posting (Xapian::docid did, const std::string &term, Xapian::doccount wdf)

void	remove_posting (Xapian::docid did, const std::string &term, Xapian::doccount wdf)

void	update_posting (Xapian::docid did, const std::string &term, Xapian::termcount old_wdf, Xapian::termcount new_wdf)

void	set_positionlist (const HoneyPositionTable &position_table, Xapian::docid did, const std::string &tname, const Xapian::TermIterator &term, bool modifying=false)

void	delete_positionlist (Xapian::docid did, const std::string &term)

bool	get_positionlist (Xapian::docid did, const std::string &term, std::string &s) const

bool	has_positions (const HoneyPositionTable &position_table) const

void	clear ()

void	set_doclength (Xapian::docid did, Xapian::termcount doclen, bool add)

void	delete_doclength (Xapian::docid did)

bool	get_doclength (Xapian::docid did, Xapian::termcount &doclen) const

void	flush_doclengths (HoneyPostListTable &table)
	Flush document length changes. More...

void	flush_post_list (HoneyPostListTable &table, const std::string &term)
	Flush postlist changes for term. More...

void	flush_all_post_lists (HoneyPostListTable &table)
	Flush postlist changes for all terms. More...

void	flush_post_lists (HoneyPostListTable &table, const std::string &pfx)
	Flush postlist changes for all terms which start with pfx. More...

void	flush (HoneyPostListTable &table)
	Flush all postlist table changes. More...

void	flush_pos_lists (HoneyPositionTable &table)
	Flush position changes. More...

bool	get_deltas (std::string_view term, Xapian::termcount &tf_delta, Xapian::termcount &cf_delta) const

Public Attributes
std::map< Xapian::docid, Xapian::termcount >	doclen_changes
	Buffered changes to document lengths. More...

Private Member Functions
void	store_positions (const HoneyPositionTable &position_table, Xapian::docid did, const std::string &tname, const Xapian::VecCOW< Xapian::termpos > &posvec, bool modifying)

void	set_positionlist (Xapian::docid did, const std::string &term, const std::string &s)

Private Attributes
std::map< std::string, PostingChanges, std::less<> >	postlist_changes
	Buffered changes to postlists. More...

std::map< std::string, std::map< Xapian::docid, std::string >, std::less<> >	pos_changes
	Buffered changes to positional data. More...

Static Private Attributes
static const Xapian::termcount	DELETED_POSTING = Xapian::termcount(-1)
	Magic wdf value used for a deleted posting. More...

Friends
class	HoneyPostListTable

Detailed Description

Class which "inverts the file".

Definition at line 45 of file honey_inverter.h.

Member Function Documentation

◆ add_posting()

void HoneyInverter::add_posting	(	Xapian::docid	did,
		const std::string &	term,
		Xapian::doccount	wdf
	)

inline

Definition at line 150 of file honey_inverter.h.

References postlist_changes, and term.

◆ clear()

void HoneyInverter::clear ( )

inline

Definition at line 199 of file honey_inverter.h.

References doclen_changes, pos_changes, and postlist_changes.

◆ delete_doclength()

void HoneyInverter::delete_doclength ( Xapian::docid did )

inline

Definition at line 213 of file honey_inverter.h.

References Assert, DELETED_POSTING, and doclen_changes.

◆ delete_positionlist()

void HoneyInverter::delete_positionlist	(	Xapian::docid	did,
		const std::string &	term
	)

Definition at line 107 of file honey_inverter.cc.

References term.

◆ flush()

void HoneyInverter::flush ( HoneyPostListTable & table )

Flush all postlist table changes.

Definition at line 211 of file honey_inverter.cc.

◆ flush_all_post_lists()

void HoneyInverter::flush_all_post_lists ( HoneyPostListTable & table )

Flush postlist changes for all terms.

Definition at line 171 of file honey_inverter.cc.

References HoneyPostListTable::merge_changes().

◆ flush_doclengths()

void HoneyInverter::flush_doclengths ( HoneyPostListTable & table )

Flush document length changes.

Definition at line 153 of file honey_inverter.cc.

References HoneyPostListTable::merge_doclen_changes().

◆ flush_pos_lists()

void HoneyInverter::flush_pos_lists ( HoneyPositionTable & table )

Flush position changes.

Definition at line 218 of file honey_inverter.cc.

References HoneyPositionTable::delete_positionlist(), HoneyPositionTable::set_positionlist(), and term.

◆ flush_post_list()

void HoneyInverter::flush_post_list	(	HoneyPostListTable &	table,
		const std::string &	term
	)

Flush postlist changes for term.

Definition at line 160 of file honey_inverter.cc.

References HoneyPostListTable::merge_changes(), and term.

◆ flush_post_lists()

void HoneyInverter::flush_post_lists	(	HoneyPostListTable &	table,
		const std::string &	pfx
	)

Flush postlist changes for all terms which start with pfx.

Definition at line 180 of file honey_inverter.cc.

References HoneyPostListTable::merge_changes().

◆ get_deltas()

bool HoneyInverter::get_deltas	(	std::string_view	term,
		Xapian::termcount &	tf_delta,
		Xapian::termcount &	cf_delta
	)		const

inline

Definition at line 247 of file honey_inverter.h.

References postlist_changes, and term.

◆ get_doclength()

bool HoneyInverter::get_doclength	(	Xapian::docid	did,
		Xapian::termcount &	doclen
	)		const

inline

Definition at line 219 of file honey_inverter.h.

References DELETED_POSTING, doclen_changes, rare, and Xapian::Internal::str().

◆ get_positionlist()

bool HoneyInverter::get_positionlist	(	Xapian::docid	did,
		const std::string &	term,
		std::string &	s
	)		const

Definition at line 114 of file honey_inverter.cc.

References term.

◆ has_positions()

bool HoneyInverter::has_positions ( const HoneyPositionTable & position_table ) const

Definition at line 130 of file honey_inverter.cc.

References HoneyTable::empty(), and HoneyTable::get_entry_count().

◆ remove_posting()

void HoneyInverter::remove_posting	(	Xapian::docid	did,
		const std::string &	term,
		Xapian::doccount	wdf
	)

inline

Definition at line 161 of file honey_inverter.h.

References postlist_changes, and term.

◆ set_doclength()

void HoneyInverter::set_doclength	(	Xapian::docid	did,
		Xapian::termcount	doclen,
		bool	add
	)

inline

Definition at line 205 of file honey_inverter.h.

References HoneyTable::add(), Assert, DELETED_POSTING, and doclen_changes.

◆ set_positionlist() [1/2]

void HoneyInverter::set_positionlist	(	const HoneyPositionTable &	position_table,
		Xapian::docid	did,
		const std::string &	tname,
		const Xapian::TermIterator &	term,
		bool	modifying = `false`
	)

Definition at line 67 of file honey_inverter.cc.

References Xapian::TermIterator::Internal::get_vec_termpos(), Xapian::TermIterator::internal, pos, Xapian::TermIterator::positionlist_begin(), Xapian::TermIterator::positionlist_count(), Xapian::TermIterator::positionlist_end(), Xapian::Vec< T, COW, UNIQUEPTR, typename >::push_back(), Xapian::Vec< T, COW, UNIQUEPTR, typename >::reserve(), and term.

◆ set_positionlist() [2/2]

void HoneyInverter::set_positionlist	(	Xapian::docid	did,
		const std::string &	term,
		const std::string &	s
	)

private

Definition at line 98 of file honey_inverter.cc.

References term.

◆ store_positions()

void HoneyInverter::store_positions	(	const HoneyPositionTable &	position_table,
		Xapian::docid	did,
		const std::string &	tname,
		const Xapian::VecCOW< Xapian::termpos > &	posvec,
		bool	modifying
	)

private

Definition at line 37 of file honey_inverter.cc.

References HoneyTable::get_exact_entry(), HoneyPositionTable::make_key(), HoneyPositionTable::pack(), and term.

◆ update_posting()

void HoneyInverter::update_posting	(	Xapian::docid	did,
		const std::string &	term,
		Xapian::termcount	old_wdf,
		Xapian::termcount	new_wdf
	)

inline

Definition at line 172 of file honey_inverter.h.

References postlist_changes, and term.

Friends And Related Function Documentation

◆ HoneyPostListTable

friend class HoneyPostListTable

friend

Definition at line 46 of file honey_inverter.h.

Member Data Documentation

◆ DELETED_POSTING

const Xapian::termcount HoneyInverter::DELETED_POSTING = Xapian::termcount(-1)

staticprivate

Magic wdf value used for a deleted posting.

Definition at line 49 of file honey_inverter.h.

Referenced by delete_doclength(), get_doclength(), HoneyInverter::PostingChanges::PostingChanges(), HoneyInverter::PostingChanges::remove_posting(), and set_doclength().

◆ doclen_changes

std::map<Xapian::docid, Xapian::termcount> HoneyInverter::doclen_changes

Buffered changes to document lengths.

Definition at line 147 of file honey_inverter.h.

Referenced by clear(), delete_doclength(), get_doclength(), and set_doclength().

◆ pos_changes

std::map<std::string, std::map<Xapian::docid, std::string>, std::less<> > HoneyInverter::pos_changes

private

Buffered changes to positional data.

Definition at line 133 of file honey_inverter.h.

Referenced by clear().

◆ postlist_changes

std::map<std::string, PostingChanges, std::less<> > HoneyInverter::postlist_changes

private

Buffered changes to postlists.

Definition at line 128 of file honey_inverter.h.

Referenced by add_posting(), clear(), get_deltas(), remove_posting(), and update_posting().

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

backends/honey/honey_inverter.h
backends/honey/honey_inverter.cc

Classes

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Member Function Documentation

◆ add_posting()

◆ clear()

◆ delete_doclength()

◆ delete_positionlist()

◆ flush()

◆ flush_all_post_lists()

◆ flush_doclengths()

◆ flush_pos_lists()

◆ flush_post_list()

◆ flush_post_lists()

◆ get_deltas()

◆ get_doclength()

◆ get_positionlist()

◆ has_positions()

◆ remove_posting()

◆ set_doclength()

◆ set_positionlist() [1/2]

◆ set_positionlist() [2/2]

◆ store_positions()

◆ update_posting()

Friends And Related Function Documentation

◆ HoneyPostListTable

Member Data Documentation

◆ DELETED_POSTING

◆ doclen_changes

◆ pos_changes

◆ postlist_changes