Interface for creating iterators on joined sets of postings. More...

Classes
struct	Description
	Structure that describes the join operator. More...

Public Member Functions
virtual	~PostingJoinOperatorInterface ()
	Destructor. More...

virtual PostingIteratorInterface *	createResultIterator (const std::vector< Reference< PostingIteratorInterface > > &argitrs, int range, unsigned int cardinality) const =0
	Create an iterator on the join operator result (set of postings) More...

virtual Description	getDescription () const =0
	Get a description of the function for user help and introspection. More...

Detailed Description

Interface for creating iterators on joined sets of postings.

Constructor & Destructor Documentation

virtual strus::PostingJoinOperatorInterface::~PostingJoinOperatorInterface ( )

inlinevirtual

Destructor.

virtual PostingIteratorInterface* strus::PostingJoinOperatorInterface::createResultIterator	(	const std::vector< Reference< PostingIteratorInterface > > &	argitrs,
		int	range,
		unsigned int	cardinality
	)		const

pure virtual

Create an iterator on the join operator result (set of postings)

Parameters

[in]	argitrs	argument posting iterators of the join operation
[in]	range	range of the operation
[in]	cardinality	required size of matching results (e.g. minimum number of elements of any input subset selection that builds a result) (0 for default)

virtual Description strus::PostingJoinOperatorInterface::getDescription ( ) const

pure virtual

Get a description of the function for user help and introspection.

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

/home/patrick/Projects/github/strus/include/strus/postingJoinOperatorInterface.hpp