MultiMatch Class Reference
#include <multimatch.h>
Public Member Functions | |
| MultiMatch (const Xapian::Database &db_, const Xapian::Query::Internal *query, Xapian::termcount qlen, const Xapian::RSet *omrset, Xapian::doccount collapse_max_, 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, Xapian::Weight::Internal &stats, const Xapian::Weight *wtscheme, const vector< Xapian::MatchSpy * > &matchspies_, 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 Xapian::Weight::Internal &stats, const Xapian::MatchDecider *mdecider, const Xapian::MatchDecider *matchspy_legacy, const Xapian::KeyMaker *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 | |
| 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::doccount | collapse_max |
| 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? | |
| const vector< Xapian::MatchSpy * > & | matchspies |
| The matchspies to use. | |
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::doccount | collapse_max_, | |||
| 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, | |||
| Xapian::Weight::Internal & | stats, | |||
| const Xapian::Weight * | wtscheme, | |||
| const vector< Xapian::MatchSpy * > & | matchspies_, | |||
| 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 matchspies_ Any the MatchSpy objects in use. have_sorter Is there a sorter in use? have_mdecider Is there a Xapian::MatchDecider in use?
Definition at line 203 of file multimatch.cc.
References Xapian::Database::Internal::as_remotedatabase(), Assert, collapse_key, collapse_max, db, errorhandler, Xapian::Database::internal, is_remote, leaves, LOGCALL_CTOR, LOGLINE, Xapian::Weight::Internal::mark_wanted_terms(), matchspies, order, percent_cutoff, prepare_sub_matches(), query, REL, REL_VAL, Xapian::Weight::Internal::set_bounds_from_db(), 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
| void MultiMatch::get_mset | ( | Xapian::doccount | first, | |
| Xapian::doccount | maxitems, | |||
| Xapian::doccount | check_at_least, | |||
| Xapian::MSet & | mset, | |||
| const Xapian::Weight::Internal & | stats, | |||
| const Xapian::MatchDecider * | mdecider, | |||
| const Xapian::MatchDecider * | matchspy_legacy, | |||
| const Xapian::KeyMaker * | sorter | |||
| ) |
Run the match and generate an MSet object.
- Parameters:
-
sorter Xapian::KeyMaker functor (or NULL for no KeyMaker)
Comparison functor for sorting MSet
Definition at line 304 of file multimatch.cc.
References Assert, AssertRel, Xapian::Internal::MSetItem::collapse_key, collapse_key, collapse_max, db, Xapian::Enquire::DESCENDING, Collapser::empty(), Collapser::entries(), errorhandler, Collapser::get_collapse_count(), Collapser::get_docs_considered(), Collapser::get_dups_ignored(), Collapser::get_matches_lower_bound(), RemoteSubMatch::get_mset(), get_msetcmp_function(), RemoteSubMatch::get_percent_factor(), Xapian::PostingIterator::Internal::get_termfreq_min(), getorrecalc_maxweight(), Xapian::Database::internal, Xapian::MSet::internal, is_remote, leaves, LOGCALL_VOID, LOGLINE, matchspies, next_handling_prune(), Collapser::old_item, order, percent_cutoff, Collapser::process(), query, rare, recalculate_w_max, REJECTED, REL, REL_VAL, REPLACED, sort_by, sort_key, Xapian::Internal::MSetItem::sort_key, sort_value_forward, RemoteSubMatch::start_match(), VAL, weight_cutoff, and Xapian::Internal::MSetItem::wt.
| 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 286 of file multimatch.cc.
References AssertEqDoubleParanoid, Xapian::PostingIterator::Internal::get_description(), Xapian::PostingIterator::Internal::get_maxweight(), LOGCALL, LOGLINE, 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::recalc_maxweight | ( | ) | [inline] |
Called by postlists to indicate that they've rearranged themselves and the maxweight now possible is smaller.
Definition at line 136 of file multimatch.h.
References recalculate_w_max.
Referenced by check_handling_prune(), MultiAndPostList::check_helper(), MultiXorPostList::erase_sublist(), BranchPostList::handle_prune(), MultiXorPostList::next(), MergePostList::next(), ExtraWeightPostList::next(), next_handling_prune(), MultiAndPostList::next_helper(), Xapian::PostingSource::set_maxweight(), MultiXorPostList::skip_to(), ExtraWeightPostList::skip_to(), skip_to_handling_prune(), and MultiAndPostList::skip_to_helper().
Member Data Documentation
Xapian::valueno MultiMatch::collapse_key [private] |
Xapian::doccount MultiMatch::collapse_max [private] |
const Xapian::Database MultiMatch::db [private] |
Xapian::ErrorHandler* MultiMatch::errorhandler [private] |
ErrorHandler.
Definition at line 60 of file multimatch.h.
Referenced by get_mset(), and MultiMatch().
vector<bool> MultiMatch::is_remote [private] |
Is each sub-database remote?
Definition at line 71 of file multimatch.h.
Referenced by get_mset(), and MultiMatch().
std::vector<Xapian::Internal::RefCntPtr<SubMatch> > MultiMatch::leaves [private] |
Vector of the items.
Definition at line 37 of file multimatch.h.
Referenced by get_mset(), and MultiMatch().
const vector<Xapian::MatchSpy *>& MultiMatch::matchspies [private] |
The matchspies to use.
Definition at line 74 of file multimatch.h.
Referenced by get_mset(), and MultiMatch().
int MultiMatch::percent_cutoff [private] |
const Xapian::Query::Internal* MultiMatch::query [private] |
bool MultiMatch::recalculate_w_max [private] |
Internal flag to note that w_max needs to be recalculated while query is running.
Definition at line 68 of file multimatch.h.
Referenced by get_mset(), getorrecalc_maxweight(), and recalc_maxweight().
Xapian::valueno MultiMatch::sort_key [private] |
bool MultiMatch::sort_value_forward [private] |
const Xapian::Weight* MultiMatch::weight [private] |
Xapian::weight MultiMatch::weight_cutoff [private] |
The documentation for this class was generated from the following files:
- common/multimatch.h
- matcher/multimatch.cc