#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 54 of file specific-contents-query.hpp.

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

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)

PlacementMO::ID const &	searchScope () const

ScopeQueryKind	searchDirection () const

Public Member Functions inherited from DiscoveryQuery< MO >
ContentFilter	contentFilter () const

Public Member Functions inherited from Query< RES >
	Query ()

	Query (string querySpec)

	operator QueryKey () const
	automatic conversion from Query to QueryKey for indexing and ordering.

Builder	rebuild () const

string	extractID (Symbol predicate) const
	convenience shortcut to extract a desired name-ID.

bool	usesPredicate (Symbol predicate) const

iterator	operator() (QueryResolver const &resolver) const
	notational convenience shortcut, synonymous to Query<RES>::resolveBy()

iterator	resolveBy (QueryResolver const &resolver) const

Public Member Functions inherited from Goal
virtual	~Goal ()
	this is a marker baseclass

QueryID const &	getQID () const

Private Types
using	ContentFilter = ContentsQuery< MO >::ContentFilter

using	TypedPlacement = Placement< MO > const &

using	SpecialPredicate = function< bool(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

Private Attributes
Filter	specialTest_

Additional Inherited Members
Public Types inherited from ScopeQuery< MO >
using	iterator = _Parent::iterator

using	ContentFilter = _Parent::ContentFilter

Public Types inherited from DiscoveryQuery< MO >
using	iterator = _Query::iterator

using	ContentFilter = function< bool(PlacementMO const &)>

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 DiscoveryQuery< MO >
	DiscoveryQuery ()

Protected Member Functions inherited from Query< RES >
lib::QueryText	getQueryDefinition () const
	access the complete syntactical representation of this query.

	Query (QueryID typeID, lib::QueryText const &genericQuerySpec)

	Query (QueryID typeID, string querySpec)

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_