QueryHandler< TY > Class Template Reference

#include "common/config-rules.hpp"

Description

template<class TY>
class lumiera::query::QueryHandler< TY >

the "front side" interface: the Steam-Layer code can use this QueryHandler to retrieve instances of the type TY fulfilling the given Query.

To start with, we use a mock implementation. (this code works and is already used 2/2008)

Todo:

retrofit this to install and use a QueryResolver

See also

lumiera::query::LookupPreconfigured

lumiera::query::MockTable

Definition at line 154 of file config-rules.hpp.

Public Member Functions
virtual bool	resolve (P< TY > &solution, Query< TY > const &q)=0
	try to find or create an object of type TY fulfilling the given query.

Protected Member Functions
virtual	~QueryHandler ()

Constructor & Destructor Documentation

~QueryHandler()

template<class TY >

virtual ~QueryHandler ( )

inlineprotectedvirtual

Definition at line 157 of file config-rules.hpp.

Member Function Documentation

resolve()

template<class TY >

virtual bool resolve ( P< TY > &  solution, Query< TY > const &  q  )

pure virtual

try to find or create an object of type TY fulfilling the given query.

Parameters

solution	object fulfilling the query. Will be bound or unified (in case it's already bound) with the first solution.
q	any goals to be fulfilled by the solution.

Returns

false if resolution failed. In this case, solution ptr is empty.

Referenced by DefsManagerImpl_test::create(), DefsManager::create(), DefsManager::define(), StructFactory::operator()(), steam::mobject::_mapping::resolveQuery(), and DefsManager::search().

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Collaboration diagram for QueryHandler< TY >:

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

• config-rules.hpp