MultiMatch Class Reference

#include <multimatch.h>

Collaboration diagram for MultiMatch:


Public Member Functions
	MultiMatch (const Xapian::Database &db_, const Xapian::Query::Internal query, Xapian::termcount qlen, const Xapian::RSet omrset, Xapian::valueno collapse_key_, int percent_cutoff_, Xapian::weight weight_cutoff_, Xapian::Enquire::docid_order order_, Xapian::valueno sort_key_, Xapian::Enquire::Internal::sort_setting sort_by_, bool sort_value_forward_, Xapian::ErrorHandler errorhandler, Stats &stats, const Xapian::Weight wtscheme, bool have_sorter, bool have_mdecider)
	MultiMatch constructor.
void	get_mset (Xapian::doccount first, Xapian::doccount maxitems, Xapian::doccount check_at_least, Xapian::MSet &mset, const Stats &stats, const Xapian::MatchDecider mdecider, const Xapian::MatchDecider matchspy, const Xapian::Sorter *sorter)
	Run the match and generate an MSet object.
void	recalc_maxweight ()
	Called by postlists to indicate that they've rearranged themselves and the maxweight now possible is smaller.
Private Member Functions
string	get_collapse_key (PostList *pl, Xapian::docid did, Xapian::valueno keyno, Xapian::Internal::RefCntPtr< Xapian::Document::Internal > &doc)
	get the collapse key
Xapian::weight	getorrecalc_maxweight (PostList *pl)
	get the maxweight that the postlist pl may return, calling recalc_maxweight if recalculate_w_max is set, and unsetting it.
	MultiMatch (const MultiMatch &)
	Copying is not permitted.
void	operator= (const MultiMatch &)
	Assignment is not permitted.
Private Attributes
std::vector< Xapian::Internal::RefCntPtr< SubMatch > >	leaves
	Vector of the items.
const Xapian::Database	db
const Xapian::Query::Internal *	query
Xapian::valueno	collapse_key
int	percent_cutoff
Xapian::weight	weight_cutoff
Xapian::Enquire::docid_order	order
Xapian::valueno	sort_key
Xapian::Enquire::Internal::sort_setting	sort_by
bool	sort_value_forward
Xapian::ErrorHandler *	errorhandler
	ErrorHandler.
const Xapian::Weight *	weight
	Weighting scheme.
bool	recalculate_w_max
	Internal flag to note that w_max needs to be recalculated while query is running.
vector< bool >	is_remote
	Is each sub-database remote?

Detailed Description

Definition at line 33 of file multimatch.h.

Constructor & Destructor Documentation

MultiMatch::MultiMatch ( const MultiMatch & ) [private]

Copying is not permitted.

MultiMatch::MultiMatch	(	const Xapian::Database &	db_,
		const Xapian::Query::Internal *	query,
		Xapian::termcount	qlen,
		const Xapian::RSet *	omrset,
		Xapian::valueno	collapse_key_,
		int	percent_cutoff_,
		Xapian::weight	weight_cutoff_,
		Xapian::Enquire::docid_order	order_,
		Xapian::valueno	sort_key_,
		Xapian::Enquire::Internal::sort_setting	sort_by_,
		bool	sort_value_forward_,
		Xapian::ErrorHandler *	errorhandler,
		Stats &	stats,
		const Xapian::Weight *	wtscheme,
		bool	have_sorter,
		bool	have_mdecider
	)

MultiMatch constructor.

Parameters:

	db_	The database to use.
	query	The query
	qlen	The query length
	omrset	The relevance set (or NULL for no RSet)
	errorhandler	Errorhandler object
	stats	The stats object to add our stats to.
	wtscheme	Weighting scheme
	have_sorter	Is there a sorter in use?
	have_mdecider	Is there a Xapian::MatchDecider in use?

Definition at line 177 of file multimatch.cc.

References Assert, collapse_key, db, DEBUGCALL, DEBUGLINE, errorhandler, Xapian::Database::internal, is_remote, leaves, order, percent_cutoff, prepare_sub_matches(), query, REL, REL_VAL, RemoteDatabase::set_query(), sort_by, sort_key, sort_value_forward, split_rset_by_db(), Xapian::Query::Internal::validate_query(), weight, and weight_cutoff.

Member Function Documentation

string MultiMatch::get_collapse_key	(	PostList *	pl,
		Xapian::docid	did,
		Xapian::valueno	keyno,
		Xapian::Internal::RefCntPtr< Xapian::Document::Internal > &	doc
	)			`[private]`

get the collapse key

Definition at line 257 of file multimatch.cc.

References Assert, db, DEBUGCALL, Xapian::Internal::RefCntPtr< T >::get(), Xapian::PostingIterator::Internal::get_collapse_key(), Xapian::Database::internal, and RETURN.

Referenced by get_mset().

Xapian::weight MultiMatch::getorrecalc_maxweight ( PostList * pl ) [private]

get the maxweight that the postlist pl may return, calling recalc_maxweight if recalculate_w_max is set, and unsetting it.

Must only be called on the top of the postlist tree.

Definition at line 275 of file multimatch.cc.

References AssertEqDoubleParanoid, DEBUGCALL, DEBUGLINE, Xapian::PostingIterator::Internal::get_maxweight(), Xapian::PostingIterator::Internal::recalc_maxweight(), recalculate_w_max, and RETURN.

Referenced by get_mset().

void MultiMatch::operator= ( const MultiMatch & ) [private]

Assignment is not permitted.

void MultiMatch::get_mset	(	Xapian::doccount	first,
		Xapian::doccount	maxitems,
		Xapian::doccount	check_at_least,
		Xapian::MSet &	mset,
		const Stats &	stats,
		const Xapian::MatchDecider *	mdecider,
		const Xapian::MatchDecider *	matchspy,
		const Xapian::Sorter *	sorter
	)