hops::MHO_ExtensibleElement Class Reference

Class MHO_ExtensibleElement. More...

#include <MHO_ExtensibleElement.hh>

Inheritance diagram for hops::MHO_ExtensibleElement:

Public Member Functions
	MHO_ExtensibleElement ()
virtual	~MHO_ExtensibleElement ()
void	Accept (MHO_Visitor *aVisitor) override
	Visits all extensions of MHO_ExtensibleElement using given visitor. More...
template<class XExtensionType >
MHO_ExtendedElement< XExtensionType > *	AsExtension ()
	Returns an extension of type XExtensionType if found in the list of extensions. More...
template<class XExtensionType >
bool	HasExtension () const
	Checks if an extensible element has a specific extension type. More...
template<class XExtensionType >
MHO_ExtendedElement< XExtensionType > *	MakeExtension ()
	Creates and adds a new extension of type XExtensionType to the list of extensions. More...
Public Member Functions inherited from hops::MHO_Element
	MHO_Element ()
virtual	~MHO_Element ()

Protected Attributes
std::vector< MHO_Element * >	fExtensions

Detailed Description

Class MHO_ExtensibleElement.

Implements an interface by which a class that inherits from MHO_ExtensibleElement can have arbitrarily extended functionality added to it without modifying the original class Pointers to the extensions are stored internally, and access proceeds through the visitor pattern. This interface should be used VERY sparingly, as dynamic_casts are expensive and the number of dynamic_casts needed for a single call to the 'Accept' method scales like N*M (where N is the number of visitors, and M the number of extensions).

Author

J. Barrett - barre.nosp@m.ttj@.nosp@m.mit.e.nosp@m.du

Date

Wed Sep 15 13:18:04 2021 -0400

Constructor & Destructor Documentation

MHO_ExtensibleElement()

hops::MHO_ExtensibleElement::MHO_ExtensibleElement ( )

inline

~MHO_ExtensibleElement()

virtual hops::MHO_ExtensibleElement::~MHO_ExtensibleElement ( )

inlinevirtual

Member Function Documentation

Accept()

void hops::MHO_ExtensibleElement::Accept ( MHO_Visitor *  aVisitor )

inlineoverridevirtual

Visits all extensions of MHO_ExtensibleElement using given visitor.

Parameters

aVisitor

MHO_Visitor to traverse and operate on extensions

Implements hops::MHO_Element.

AsExtension()

template<class XExtensionType >

MHO_ExtendedElement< XExtensionType > * hops::MHO_ExtensibleElement::AsExtension

inline

Returns an extension of type XExtensionType if found in the list of extensions.

Returns a dynamically casted extension of type XExtensionType if found among stored extensions.

Template Parameters

XExtensionType

Template parameter XExtensionType

Returns

Pointer to MHO_ExtendedElement<XExtensionType or nullptr if not found

Pointer to MHO_ExtendedElement<XExtensionType or nullptr if not found

HasExtension()

template<class XExtensionType >

bool hops::MHO_ExtensibleElement::HasExtension

inline

Checks if an extensible element has a specific extension type.

Returns

True if the element has the specified extension type, false otherwise.

True if extension exists, false otherwise.

MakeExtension()

template<class XExtensionType >

MHO_ExtendedElement< XExtensionType > * hops::MHO_ExtensibleElement::MakeExtension

inline

Creates and adds a new extension of type XExtensionType to the list of extensions.

Creates and adds a new extension of type XExtensionType to the extensible element.

Template Parameters

XExtensionType

Template parameter XExtensionType

Returns

Pointer to the newly created MHO_ExtendedElement<XExtensionType

Pointer to the newly created MHO_ExtendedElement<XExtensionType

Member Data Documentation

fExtensions

std::vector< MHO_Element* > hops::MHO_ExtensibleElement::fExtensions

protected

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

• MHO_ExtensibleElement.hh