#include <queryinternal.h>

Inheritance diagram for Xapian::Internal::QueryBranch:

Collaboration diagram for Xapian::Internal::QueryBranch:

Public Member Functions
termcount	get_length () const noexcept

void	serialise (std::string &result) const

void	gather_terms (void *void_terms) const

virtual void	add_subquery (const Xapian::Query &subquery)=0

Xapian::Query::op	get_type () const noexcept

size_t	get_num_subqueries () const noexcept

const Query	get_subquery (size_t n) const

virtual Query::Internal *	done ()=0

Public Member Functions inherited from Xapian::Query::Internal
	Internal () noexcept

virtual	~Internal ()

virtual Xapian::Internal::PostListAndEstimate	postlist (Xapian::Internal::QueryOptimiser qopt, double factor, Xapian::Internal::TermFreqs termfreqs) const =0

virtual bool	postlist_sub_and_like (Xapian::Internal::AndContext &ctx, Xapian::Internal::QueryOptimiser qopt, double factor, Xapian::Internal::TermFreqs termfreqs) const

virtual void	postlist_sub_bool_or_like (Xapian::Internal::OrContext &ctx, Xapian::Internal::QueryOptimiser qopt, Xapian::Internal::TermFreqs termfreqs) const

virtual void	postlist_sub_or_like (Xapian::Internal::OrContext &ctx, Xapian::Internal::QueryOptimiser qopt, double factor, Xapian::Internal::TermFreqs termfreqs, bool keep_zero_weight=true) const

virtual void	postlist_sub_xor (Xapian::Internal::XorContext &ctx, Xapian::Internal::QueryOptimiser qopt, double factor, Xapian::Internal::TermFreqs termfreqs) const

virtual termcount	get_wqf () const

virtual termpos	get_pos () const

virtual std::string	get_description () const =0

Public Member Functions inherited from Xapian::Internal::intrusive_base
	intrusive_base ()
	Construct with no references. More...

Protected Member Functions
	QueryBranch (size_t n_subqueries)

void	serialise_ (std::string &result, Xapian::termcount parameter=0) const

void	do_bool_or_like (OrContext &ctx, QueryOptimiser qopt, TermFreqs termfreqs, size_t first=0) const

void	do_or_like (OrContext &ctx, QueryOptimiser qopt, double factor, TermFreqs termfreqs, Xapian::termcount elite_set_size=0, size_t first=0, bool keep_zero_weight=true) const
	Process OR-like subqueries. More...

PostListAndEstimate	do_synonym (QueryOptimiser qopt, double factor, TermFreqs termfreqs) const

PostListAndEstimate	do_max (QueryOptimiser qopt, double factor, TermFreqs termfreqs) const

const std::string	get_description_helper (const char *op, Xapian::termcount window=0) const

Protected Attributes
QueryVector	subqueries

Private Member Functions
virtual Xapian::Query::op	get_op () const =0

Additional Inherited Members
Static Public Member Functions inherited from Xapian::Query::Internal
static Query::Internal *	unserialise (const char *p, const char end, const Registry &reg)

Public Attributes inherited from Xapian::Internal::intrusive_base
unsigned	_refs
	Reference count. More...

Detailed Description

Definition at line 200 of file queryinternal.h.

Constructor & Destructor Documentation

◆ QueryBranch()

Xapian::Internal::QueryBranch::QueryBranch ( size_t n_subqueries )

inlineexplicitprotected

Definition at line 206 of file queryinternal.h.

Member Function Documentation

◆ add_subquery()

virtual void Xapian::Internal::QueryBranch::add_subquery ( const Xapian::Query & subquery )

pure virtual

Implemented in Xapian::Internal::QueryAndMaybe, Xapian::Internal::QueryAndNot, Xapian::Internal::QueryOrLike, and Xapian::Internal::QueryAndLike.

Referenced by Xapian::Query::add_subquery(), and Xapian::Query::Internal::unserialise().

◆ do_bool_or_like()

void Xapian::Internal::QueryBranch::do_bool_or_like	(	OrContext &	ctx,
		QueryOptimiser *	qopt,
		TermFreqs *	termfreqs,
		size_t	first = `0`
	)		const

protected

Definition at line 2309 of file queryinternal.cc.

References Assert, Xapian::SmallVector< T >::begin(), Xapian::SmallVector< T >::end(), get_op(), LOGCALL_VOID, Xapian::Query::OP_SYNONYM, Xapian::SmallVector_::size(), and subqueries.

Referenced by do_max(), do_synonym(), Xapian::Internal::QueryOr::postlist(), Xapian::Internal::QueryAndNot::postlist_sub_and_like(), and Xapian::Internal::QueryOr::postlist_sub_bool_or_like().

◆ do_max()

PostListAndEstimate Xapian::Internal::QueryBranch::do_max	(	QueryOptimiser *	qopt,
		double	factor,
		TermFreqs *	termfreqs
	)		const

protected

Definition at line 2408 of file queryinternal.cc.

References Assert, do_bool_or_like(), do_or_like(), LOGCALL, Xapian::Internal::OrContext::postlist(), Xapian::Internal::OrContext::postlist_max(), RETURN, Xapian::SmallVector_::size(), and subqueries.

Referenced by Xapian::Internal::QueryMax::postlist().

◆ do_or_like()

void Xapian::Internal::QueryBranch::do_or_like	(	OrContext &	ctx,
		QueryOptimiser *	qopt,
		double	factor,
		TermFreqs *	termfreqs,
		Xapian::termcount	elite_set_size = `0`,
		size_t	first = `0`,
		bool	keep_zero_weight = `true`
	)		const

protected

Process OR-like subqueries.

Parameters

keep_zero_weight By default zero-weight subqueries are kept, but in some situations (such as on the right side of OP_AND_MAYBE when not under OP_SYNONYM) they can be ignored.

Definition at line 2332 of file queryinternal.cc.

References Assert, Xapian::SmallVector< T >::begin(), Xapian::SmallVector< T >::end(), get_op(), LOGCALL_VOID, Xapian::Query::OP_SYNONYM, Xapian::Internal::OrContext::select_elite_set(), Xapian::Internal::Context::size(), Xapian::SmallVector_::size(), and subqueries.

Referenced by do_max(), Xapian::Internal::QueryOr::postlist(), Xapian::Internal::QueryEliteSet::postlist(), Xapian::Internal::QueryAndMaybe::postlist_sub_and_like(), Xapian::Internal::QueryOr::postlist_sub_or_like(), and Xapian::Internal::QueryEliteSet::postlist_sub_or_like().