Query< RES >::Builder Class Reference

#include "common/query.hpp"

Description

template<class RES>
class lumiera::Query< RES >::Builder

Helper for establishing, reworking and remolding queries.

Definition at line 477 of file query.hpp.

Public Member Functions
string	asKey () const
string	extractID (Symbol predicate) const
	extract an ID term defined as (single) parameter for the given predicate. More...
Builder &	fromText (string queryPredicates)
	operator Query< RES > ()
	when done with defining or reworking the query, the result may be retrieved by type conversion
Builder &	prependConditions (string additionalQueryPredicates)
Builder &	removeTerm (Symbol termPredicate)
	remove the first term from this query definition, which matches the given predicate symbol More...
Builder &	withConditions (string additionalQueryPredicates)

Friends
class	Query< RES >

Private Member Functions
	Builder (QueryID kind, string baseDef="")

Private Attributes
string	predicateForm_
QueryID	typeID_

Member Function Documentation

asKey()

string asKey ( ) const

inline

Returns

a string representation usable for hashing

Note

includes the type parameter of the underlying query

Definition at line 503 of file query.hpp.

extractID()

string extractID ( Symbol  predicate ) const

inline

extract an ID term defined as (single) parameter for the given predicate.

E.g. when using the query "foo(a), bar(b)", extractID("bar") returns "b"

Parameters

predicate

symbol of the predicate to investigate

Warning

preliminary implementation

Definition at line 517 of file query.hpp.

removeTerm()

Builder& removeTerm ( Symbol  termPredicate )

inline

remove the first term from this query definition, which matches the given predicate symbol

Warning

preliminary implementation

Definition at line 528 of file query.hpp.

Collaboration diagram for Query< RES >::Builder:

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

• query.hpp