SpecificContentsQuery< MO > Class Template Reference

#include "steam/mobject/session/specific-contents-query.hpp"

Description

template<class MO>
class steam::mobject::session::SpecificContentsQuery< MO >

from the session, based on a filter predicate.

As the parent type, ContentsQuery, the resolution of this query requires to explore the given scope depth first; but in addition to filter based on type, a client-provided predicate is applied to each result.

Note

this may degenerate on large sessions.

Todo:

develop a system of sub-indices and specialised queries

Definition at line 63 of file specific-contents-query.hpp.

Public Member Functions
	SpecificContentsQuery (PlacementMO const &scope, SpecialPredicate const &specialPred)
Public Member Functions inherited from ContentsQuery< MO >
	ContentsQuery (PlacementMO const &scope)
Public Member Functions inherited from ScopeQuery< MO >
	ScopeQuery (PlacementMO const &scope, ScopeQueryKind direction)
ScopeQueryKind	searchDirection () const
PlacementMO::ID const &	searchScope () const
Public Member Functions inherited from DiscoveryQuery< MO >
ContentFilter	contentFilter () const
Public Member Functions inherited from Query< RES >
	Query (string querySpec)
string	extractID (Symbol predicate) const
	convenience shortcut to extract a desired name-ID. More...
	operator QueryKey () const
	automatic conversion from Query to QueryKey for indexing and ordering. More...
iterator	operator() (QueryResolver const &resolver) const
	notational convenience shortcut, synonymous to Query<RES>::resolveBy()
Builder	rebuild () const
iterator	resolveBy (QueryResolver const &resolver) const
bool	usesPredicate (Symbol predicate) const
Public Member Functions inherited from Goal
virtual	~Goal ()
	this is a marker baseclass
QueryID const &	getQID () const

Classes
class	Filter
	Filter functor, built on top of a predicate, which is provided by the client on creation of this SpecivicContentsQuery instance. More...

Private Types
typedef ContentsQuery< MO >::ContentFilter	ContentFilter
typedef function< bool(TypedPlacement)>	SpecialPredicate
typedef Placement< MO > const &	TypedPlacement

Private Member Functions
ContentFilter	buildContentFilter () const
	using a specialised version of the filtering, which doesn't only check the concrete type, but also applies a custom filter predicate More...

Private Attributes
Filter	specialTest_

Additional Inherited Members
Public Types inherited from ScopeQuery< MO >
typedef _Parent::ContentFilter	ContentFilter
typedef _Parent::iterator	iterator
Public Types inherited from DiscoveryQuery< MO >
typedef function< bool(PlacementMO const &)>	ContentFilter
typedef _Query::iterator	iterator
Public Types inherited from Query< RES >
typedef lib::IterAdapter< Cursor, PReso >	iterator
Public Types inherited from Goal
enum	Kind {   EMPTY = 0,   GENERIC = 1,   DISCOVERY,   PLACEMENT }
Static Public Member Functions inherited from Query< RES >
static Builder	build (Kind queryType=Goal::GENERIC)
Protected Member Functions inherited from Query< RES >
	Query (QueryID typeID, lib::QueryText const &genericQuerySpec)
	Query (QueryID typeID, string querySpec)
lib::QueryText	getQueryDefinition () const
	access the complete syntactical representation of this query. More...
Protected Member Functions inherited from Goal
	Goal (QueryID qid)
Static Protected Member Functions inherited from Query< RES >
static QueryID	defineQueryTypeID (Kind queryType=Goal::GENERIC)
Protected Attributes inherited from Goal
QueryID	id_

Member Function Documentation

buildContentFilter()

ContentFilter buildContentFilter ( ) const

inlineprivatevirtual

using a specialised version of the filtering, which doesn't only check the concrete type, but also applies a custom filter predicate

Returns

function object, embedding a copy of the Filter functor.

Reimplemented from ScopeQuery< MO >.

Definition at line 107 of file specific-contents-query.hpp.

Inheritance diagram for SpecificContentsQuery< MO >:

Collaboration diagram for SpecificContentsQuery< MO >:

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

• specific-contents-query.hpp