26 #ifndef OM_HGUARD_ORPOSTLIST_H 27 #define OM_HGUARD_ORPOSTLIST_H Xapian::docid get_docid() const
Return the current docid.
Abstract base class for postlists.
double get_weight() const
Return the weight contribution for the current position.
Xapian::doccount get_termfreq_est() const
Get an estimate of the number of documents indexed by this term.
Xapian::termcount get_wdf() const
get_wdf() for OR postlists returns the sum of the wdfs of the sub postlists which are at the current ...
A postlist comprising two postlists ORed together.
double get_maxweight() const
Return an upper bound on what get_weight() can return.
Base class for postlists which are generated by merging two sub-postlists.
Xapian::termcount count_matching_subqs() const
Count the number of leaf subqueries which match at the current position.
unsigned XAPIAN_TERMCOUNT_BASE_TYPE termcount
A counts of terms.
PostList * check(Xapian::docid did, double w_min, bool &valid)
Check if the specified docid occurs in this postlist.
std::string get_description() const
Return a string description of this object.
virtual Xapian::termcount get_doclength() const
Return the document length of the document the current term comes from.
virtual base class for branched types of postlist
Class to hold statistics for a given collection.
Internal * next()
Advance the current position to the next document in the postlist.
virtual Xapian::termcount get_unique_terms() const
Return the number of unique terms in the document.
PostList * skip_to(Xapian::docid did, double w_min)
Skip forward to the specified docid.
bool at_end() const
Return true if the current position is past the last entry in this list.
The frequencies for a term.
unsigned XAPIAN_DOCID_BASE_TYPE doccount
A count of documents.
OrPostList(PostList *left_, PostList *right_, MultiMatch *matcher_, Xapian::doccount dbsize_)
void gather_position_lists(OrPositionList *orposlist)
Gather PositionList* objects for a subtree.
Xapian::doccount get_termfreq_min() const
Get a lower bound on the number of documents indexed by this term.
Xapian::doccount get_termfreq_max() const
Get an upper bound on the number of documents indexed by this term.
unsigned XAPIAN_DOCID_BASE_TYPE docid
A unique identifier for a document.
double recalc_maxweight()
Recalculate the upper bound on what get_weight() can return.
TermFreqs get_termfreq_est_using_stats(const Xapian::Weight::Internal &stats) const
Get an estimate for the termfreq and reltermfreq, given the stats.