Const part of AuxElement. More...

#include <AuxElement.h>

Inheritance diagram for SG::ConstAuxElement:

Collaboration diagram for SG::ConstAuxElement:

Public Types
using	TypelessConstAccessor = SG::TypelessConstAccessor
	Helper class to provide const generic access to aux data. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
using	ConstAccessor = SG::ConstAccessor< T, ALLOC >
	Helper class to provide type-safe access to aux data. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
using	Decorator = SG::Decorator< T, ALLOC >
	class to provide type-safe access to aux data. More...

Public Member Functions
	ConstAuxElement ()
	Default constructor. More...

	ConstAuxElement (const SG::AuxVectorData *container, size_t index)
	Constructor with explicit container / index. More...

	ConstAuxElement (const ConstAuxElement &other)
	Copy Constructor. More...

ConstAuxElement &	operator= (const ConstAuxElement &other)=delete
	No assignment to a const element. More...

	~ConstAuxElement ()
	Destructor. More...

const SG::AuxVectorData *	container () const
	Return the container holding this element. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED ConstAccessor< T, ALLOC >::const_reference_type	auxdata (const std::string &name) const
	Fetch an aux data variable, as a const reference. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED ConstAccessor< T, ALLOC >::const_reference_type	auxdata (const std::string &name, const std::string &clsname) const
	Fetch an aux data variable, as a const reference. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED ConstAccessor< T, ALLOC >::const_reference_type	auxdataConst (const std::string &name) const
	Fetch an aux data variable, as a const reference. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED ConstAccessor< T, ALLOC >::const_reference_type	auxdataConst (const std::string &name, const std::string &clsname) const
	Fetch an aux data variable, as a const reference. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED bool	isAvailable (const std::string &name, const std::string &clsname="") const
	Check if an aux variable is available for reading. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED bool	isAvailableWritableAsDecoration (const std::string &name, const std::string &clsname="") const
	Check if an aux variable is available for writing as a decoration. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED Decorator< T, ALLOC >::reference_type	auxdecor (const std::string &name) const
	Fetch an aux decoration, as a non-const reference. More...

template<class T , class ALLOC = AuxAllocator_t<T>>
XAOD_AUXDATA_DEPRECATED Decorator< T, ALLOC >::reference_type	auxdecor (const std::string &name, const std::string &clsname) const
	Fetch an aux decoration, as a non-const reference. More...

const SG::auxid_set_t &	getAuxIDs () const
	Return a set of identifiers for existing data items for this object. More...

const SG::auxid_set_t &	getDecorIDs () const
	Return a set of identifiers for decorations for this object. More...

size_t	index () const
	Return the index of this element within its container. More...

size_t	index () const
	Return the index of this element within its container. More...

Protected Member Functions
bool	noPrivateData () const
	True if this element has no private data. More...

bool	havePrivateData () const
	True if this element currently has private data. More...

bool	hadPrivateData () const
	True if this element had private data before it was added to its current container. More...

Private Types
enum	PrivateStoreState : uint8_t { PrivateStoreState::NO_PRIVATE = 0, PrivateStoreState::HAVE_PRIVATE = 1, PrivateStoreState::HAD_PRIVATE = 2 }
	The current private data state. More...

Private Member Functions
void	releasePrivateStoreForDtor ()
	Out-of-line portion of destructor. More...

void	setIndex (size_t index, const SG::AuxVectorData *container)
	Set the index/container for this element. More...

bool	setIndexPrivate (size_t index, const SG::AuxVectorData *container)
	Set the index/container for this element. More...

void	setNoPrivateData ()
	Record that this element does not have private data. More...

void	setHavePrivateData ()
	Record that this element currently has private data. More...

void	setHadPrivateData ()
	Record that this element used to have private data. More...

Private Attributes
const SG::AuxVectorData *	m_container
	The container of which this object is an element. More...

size_t	m_index
	The index of this element within its container. More...

PrivateStoreState	m_privateStoreState

Friends
class	AuxElement

class	SG::AuxVectorBase

Detailed Description

Const part of AuxElement.

This base class factors out the const portions of AuxElement (which see for a complete description).

Definition at line 69 of file AuxElement.h.

Member Typedef Documentation

◆ ConstAccessor

template<class T , class ALLOC = AuxAllocator_t<T>>

using SG::ConstAuxElement::ConstAccessor = SG::ConstAccessor<T, ALLOC>

Helper class to provide type-safe access to aux data.

Definition at line 131 of file AuxElement.h.

◆ Decorator

template<class T , class ALLOC = AuxAllocator_t<T>>

using SG::ConstAuxElement::Decorator = SG::Decorator<T, ALLOC>

class to provide type-safe access to aux data.

Definition at line 135 of file AuxElement.h.

◆ TypelessConstAccessor

using SG::ConstAuxElement::TypelessConstAccessor = SG::TypelessConstAccessor

Helper class to provide const generic access to aux data.

Definition at line 127 of file AuxElement.h.

Member Enumeration Documentation

◆ PrivateStoreState

enum SG::IAuxElement::PrivateStoreState : uint8_t

strongprivateinherited

The current private data state.

Enumerator
NO_PRIVATE
HAVE_PRIVATE
HAD_PRIVATE

Definition at line 131 of file IAuxElement.h.

   {
     NO_PRIVATE = 0,
     HAVE_PRIVATE = 1,
     HAD_PRIVATE = 2,
   };

Constructor & Destructor Documentation

◆ ConstAuxElement() [1/3]

SG::ConstAuxElement::ConstAuxElement ( )

Default constructor.

◆ ConstAuxElement() [2/3]

SG::ConstAuxElement::ConstAuxElement	(	const SG::AuxVectorData *	container,
		size_t	index
	)

Constructor with explicit container / index.

Parameters

container	Container of which this element will be a part.
index	Index of this element within the container.

This does not make any changes to aux data.

◆ ConstAuxElement() [3/3]

SG::ConstAuxElement::ConstAuxElement ( const ConstAuxElement & other )

Copy Constructor.

Parameters

other Object being copied.

We do not copy the container/index — the new object is not yet in a container!

In the case of constructing an object with a private store, makePrivateStore will take care of copying the aux data.

◆ ~ConstAuxElement()

SG::ConstAuxElement::~ConstAuxElement ( )

Destructor.

Any private store is deleted.

Member Function Documentation

◆ auxdata() [1/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED ConstAccessor<T, ALLOC>::const_reference_type SG::ConstAuxElement::auxdata ( const std::string & name ) const

Fetch an aux data variable, as a const reference.

Parameters

name	Name of the aux variable.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor or ConstAccessor classes.

◆ auxdata() [2/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED ConstAccessor<T, ALLOC>::const_reference_type SG::ConstAuxElement::auxdata	(	const std::string &	name,
		const std::string &	clsname
	)		const

Fetch an aux data variable, as a const reference.

Parameters

name	Name of the aux variable.
clsname	The name of the associated class. May be blank.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor or ConstAccessor classes.

◆ auxdataConst() [1/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED ConstAccessor<T, ALLOC>::const_reference_type SG::ConstAuxElement::auxdataConst ( const std::string & name ) const

Fetch an aux data variable, as a const reference.

Parameters

name	Name of the aux variable.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the ConstAccessor class.

◆ auxdataConst() [2/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED ConstAccessor<T, ALLOC>::const_reference_type SG::ConstAuxElement::auxdataConst	(	const std::string &	name,
		const std::string &	clsname
	)		const

Fetch an aux data variable, as a const reference.

Parameters

name	Name of the aux variable.
clsname	The name of the associated class. May be blank.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the ConstAccessor class.

◆ auxdecor() [1/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED Decorator<T, ALLOC>::reference_type SG::ConstAuxElement::auxdecor ( const std::string & name ) const

Fetch an aux decoration, as a non-const reference.

Parameters

name	Name of the aux variable.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor class.

If the container is locked, this will allow fetching only variables that do not yet exist (in which case they will be marked as decorations) or variables already marked as decorations.

◆ auxdecor() [2/2]

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED Decorator<T, ALLOC>::reference_type SG::ConstAuxElement::auxdecor	(	const std::string &	name,
		const std::string &	clsname
	)		const

Fetch an aux decoration, as a non-const reference.

Parameters

name	Name of the aux variable.
clsname	The name of the associated class. May be blank.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor class.

If the container is locked, this will allow fetching only variables that do not yet exist (in which case they will be marked as decorations) or variables already marked as decorations.

◆ container()

const SG::AuxVectorData* SG::ConstAuxElement::container ( ) const

Return the container holding this element.

◆ getAuxIDs()

const SG::auxid_set_t & SG::ConstAuxElement::getAuxIDs ( ) const

Return a set of identifiers for existing data items for this object.

If this object has a private or standalone store, then information from that will be returned. Otherwise, if this element is part of a container, then information for the container will be returned. Otherwise, return an empty set.

Definition at line 153 of file AuxElement.cxx.

 {
   if (havePrivateData())
     return m_container->getConstStore()->getAuxIDs();
   if (container())
     return container()->getAuxIDs();
   static const SG::auxid_set_t null_set;
   return null_set;
 }

◆ getDecorIDs()

const SG::auxid_set_t & SG::ConstAuxElement::getDecorIDs ( ) const

Return a set of identifiers for decorations for this object.

   If this object has a private or standalone store, then information
   from that will be returned.  Otherwise, if this element
   is part of a container, then information for the container
   will be returned.  Otherwise, return an empty set.

Definition at line 172 of file AuxElement.cxx.

 {
   if (havePrivateData())
     return m_container->getConstStore()->getDecorIDs();
   if (container())
     return container()->getDecorIDs();
   static const SG::auxid_set_t null_set;
   return null_set;
 }

◆ hadPrivateData()

bool SG::IAuxElement::hadPrivateData ( ) const

protectedinherited

True if this element had private data before it was added to its current container.

◆ havePrivateData()

bool SG::IAuxElement::havePrivateData ( ) const

protectedinherited

True if this element currently has private data.

◆ index() [1/2]

size_t SG::IAuxElement::index ( ) const

inherited

Return the index of this element within its container.

◆ index() [2/2]

size_t SG::IAuxElement::index

Return the index of this element within its container.

Inherited from IAuxElement.

◆ isAvailable()

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED bool SG::ConstAuxElement::isAvailable	(	const std::string &	name,
		const std::string &	clsname = `""`
	)		const

Check if an aux variable is available for reading.

Parameters

name	Name of the aux variable.
clsname	The name of the associated class. May be blank.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor class.

◆ isAvailableWritableAsDecoration()

template<class T , class ALLOC = AuxAllocator_t<T>>

XAOD_AUXDATA_DEPRECATED bool SG::ConstAuxElement::isAvailableWritableAsDecoration	(	const std::string &	name,
		const std::string &	clsname = `""`
	)		const

Check if an aux variable is available for writing as a decoration.

Parameters

name	Name of the aux variable.
clsname	The name of the associated class. May be blank.

This method has to translate from the aux data name to the internal representation each time it is called. Using this method inside of loops is discouraged; instead use the Accessor class.

◆ noPrivateData()

bool SG::IAuxElement::noPrivateData ( ) const

protectedinherited

True if this element has no private data.

◆ operator=()

ConstAuxElement& SG::ConstAuxElement::operator= ( const ConstAuxElement & other )

delete

No assignment to a const element.

◆ releasePrivateStoreForDtor()

void SG::ConstAuxElement::releasePrivateStoreForDtor ( )

private

Out-of-line portion of destructor.

Delete a private store if we have one.

Definition at line 80 of file AuxElement.cxx.

 {
   if (havePrivateData()) {
     delete m_container;
   }
 }

◆ setHadPrivateData()

void SG::IAuxElement::setHadPrivateData ( )

privateinherited

Record that this element used to have private data.

◆ setHavePrivateData()

void SG::IAuxElement::setHavePrivateData ( )

privateinherited

Record that this element currently has private data.

◆ setIndex()

void SG::ConstAuxElement::setIndex	(	size_t	index,
		const SG::AuxVectorData *	container
	)

private

Set the index/container for this element.

Parameters

index	The index of this object within the container.
container	The container holding this object. May be null if this object is being removed from a container.

Usually this simply sets the index and container members of this object. However, in the case where this object has an associated private store, then we need to deal with releasing the store if the object is being added to a container, or making a new store if the object is being removed from a container.

◆ setIndexPrivate()

bool SG::ConstAuxElement::setIndexPrivate	(	size_t	index,
		const SG::AuxVectorData *	container
	)

private

Set the index/container for this element.

Parameters

index	The index of this object within the container.
container	The container holding this object. May be null if this object is being removed from a container.

This is called from setIndex when we have a private store to deal with.

Definition at line 97 of file AuxElement.cxx.

 {
   if (hadPrivateData()) {
     // We had a private store, but it was released because we were added
     // to a container.
  
     if (container == 0) {
       // We're being moved out of the container.  Make a new private
       // store, copy the data, and switch to it.
       auto privateData = new SG::AuxElementPrivateData;
       AuxElement to (privateData, 0);
       to.copyAux (*this);
       IAuxElement::setIndex (0);
       IAuxElement::setHavePrivateData();
       m_container = privateData;
       return true;
     }
   }
   else if (havePrivateData() &&
            typeid(*m_container) == typeid(AuxElementPrivateData))
   {
     // We currently have a private store.
  
     if (container != 0 && container != m_container) {
       // We're being added to a container.
       // Aux data has already been copied.
       // Release private store.
       IAuxElement::setIndex (index);
       IAuxElement::setHadPrivateData();
       delete m_container;
       m_container = container;
       return false;
     }
   }
   else {
     // We have a standalone store.
     throw SG::ExcBadPrivateStore ("Attempt to add/remove a standalone object "
                                   "from a container.");
   }
  
   IAuxElement::setIndex (index);
   m_container = container;
   return false;
 }

◆ setNoPrivateData()

void SG::IAuxElement::setNoPrivateData ( )

privateinherited

Record that this element does not have private data.

Friends And Related Function Documentation

◆ AuxElement

friend class AuxElement

friend

Definition at line 292 of file AuxElement.h.

◆ SG::AuxVectorBase

friend class SG::AuxVectorBase

friend

Definition at line 293 of file AuxElement.h.

Member Data Documentation

◆ m_container

const SG::AuxVectorData* SG::ConstAuxElement::m_container

private

The container of which this object is an element.

Should be null if this object is not within a container, except that it may also point at a private store.

Definition at line 335 of file AuxElement.h.

◆ m_index

size_t SG::IAuxElement::m_index

privateinherited

The index of this element within its container.

Should be 0 if this object is not within a container.

Definition at line 128 of file IAuxElement.h.

◆ m_privateStoreState

PrivateStoreState SG::IAuxElement::m_privateStoreState

privateinherited

Definition at line 137 of file IAuxElement.h.

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

Public Types

Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ ConstAccessor

◆ Decorator

◆ TypelessConstAccessor

Member Enumeration Documentation

◆ PrivateStoreState

Constructor & Destructor Documentation

◆ ConstAuxElement() [1/3]

◆ ConstAuxElement() [2/3]

◆ ConstAuxElement() [3/3]

◆ ~ConstAuxElement()

Member Function Documentation

◆ auxdata() [1/2]

◆ auxdata() [2/2]

◆ auxdataConst() [1/2]

◆ auxdataConst() [2/2]

◆ auxdecor() [1/2]

◆ auxdecor() [2/2]

◆ container()

◆ getAuxIDs()

◆ getDecorIDs()

◆ hadPrivateData()

◆ havePrivateData()

◆ index() [1/2]

◆ index() [2/2]

◆ isAvailable()

◆ isAvailableWritableAsDecoration()

◆ noPrivateData()

◆ operator=()

◆ releasePrivateStoreForDtor()

◆ setHadPrivateData()

◆ setHavePrivateData()

◆ setIndex()

◆ setIndexPrivate()

◆ setNoPrivateData()

Friends And Related Function Documentation

◆ AuxElement

◆ SG::AuxVectorBase

Member Data Documentation

◆ m_container

◆ m_index

◆ m_privateStoreState