Placement< MO, B > Class Template Reference

#include "steam/mobject/placement.hpp"

Description

template<class MO, class B>
class steam::mobject::Placement< MO, B >

A refcounting Handle to an MObject of type MO, used to constrain or explicitly specify the location where the MObject is supposed to be within the Session/Model.

any specific placements are supposed to be derived from Placement<MObject>, or an intermediary interface, in case the second template parameter is used.

Placements are copyable (like values), but may be distinguished by their identity (reference semantics), which is based on an hash-ID .

Placements are defined to form a hierarchy, thereby mirroring the relations between their referents to some degree. This allows for building APIs targeted at specific kinds of MObjects, and at the same time allows a specific placement to stand-in when just a unspecific Placement<MObject> is required.

Parameters

MO	the (compile time) type of the referent
B	immediate base class of this placement

Note

please refrain from adding additional functionality to these subclasses. Especially, don't add any fields to the subclass, as Placements are treated like values at times, and thus slicing will happen, which in this special case is acceptable.

Definition at line 82 of file trait.hpp.

Public Member Functions
_Id	getID () const
	< More...
MO *	operator-> () const

Friends
class	session::MObjectFactory

Protected Types
typedef _Parent::template Id< MO > const &	_Id
typedef Placement< B >	_Parent
typedef _Parent::_SmartPtr	_SmartPtr
typedef _Parent::Deleter	Deleter

Protected Member Functions
	Placement (MO &mo, Deleter killer)

Member Function Documentation

getID()

_Id getID ( ) const

inline

<

Note

overrides HashIndexed::getID to pass specific type information,

Definition at line 251 of file placement.hpp.

Referenced by PlacementIndex_test::checkContentsEnumeration(), steam::mobject::isSameDef(), and PlacementScope_test::verifyEquality().

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Inheritance diagram for Placement< MO, B >:

Collaboration diagram for Placement< MO, B >:

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

• trait.hpp
• placement.hpp