m::Join Struct Reference

A Join in a QueryGraph combines DataSources by a join condition. More...

#include <QueryGraph.hpp>

Collaboration diagram for m::Join:

Public Types
using	sources_t = std::vector< std::reference_wrapper< DataSource > >

Public Member Functions
	Join (cnf::CNF condition, sources_t sources)
const cnf::CNF &	condition () const
	Returns the join condition.
void	update_condition (cnf::CNF update)
	Adds condition to the current condition of this Join by logical conjunction.
const sources_t &	sources () const
	Returns a reference to the joined DataSources.
bool	operator== (const Join &other) const
bool	operator!= (const Join &other) const

Private Attributes
cnf::CNF	condition_
	join condition
sources_t	sources_
	the sources to join

Detailed Description

A Join in a QueryGraph combines DataSources by a join condition.

Definition at line 137 of file QueryGraph.hpp.

Member Typedef Documentation

sources_t

using m::Join::sources_t = std::vector<std::reference_wrapper<DataSource> >

Definition at line 139 of file QueryGraph.hpp.

Constructor & Destructor Documentation

Join()

m::Join::Join ( cnf::CNF  condition, sources_t  sources  )

inline

Definition at line 146 of file QueryGraph.hpp.

Member Function Documentation

condition()

const cnf::CNF & m::Join::condition ( ) const

inline

Returns the join condition.

Definition at line 149 of file QueryGraph.hpp.

operator!=()

bool m::Join::operator!= ( const Join &  other ) const

inline

Definition at line 166 of file QueryGraph.hpp.

operator==()

bool m::Join::operator== ( const Join &  other ) const

inline

Definition at line 155 of file QueryGraph.hpp.

References condition_, and sources().

sources()

const sources_t & m::Join::sources ( ) const

inline

Returns a reference to the joined DataSources.

Definition at line 153 of file QueryGraph.hpp.

Referenced by m::pe::hs::search_states::EdgesBottomUp::compute_datasource_to_subproblem_index(), m::pe::hs::search_states::EdgePtrBottomUp::compute_datasource_to_subproblem_index(), m::pe::hs::expansions::BottomUpComplete::operator()(), and operator==().

update_condition()

void m::Join::update_condition ( cnf::CNF  update )

inline

Adds condition to the current condition of this Join by logical conjunction.

Definition at line 151 of file QueryGraph.hpp.

References and().

Field Documentation

condition_

cnf::CNF m::Join::condition_

private

join condition

Definition at line 142 of file QueryGraph.hpp.

Referenced by operator==().

sources_

sources_t m::Join::sources_

private

the sources to join

Definition at line 143 of file QueryGraph.hpp.

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The documentation for this struct was generated from the following file:

• include/mutable/IR/QueryGraph.hpp