RelationIndexContainer< FROM, TO > Class Template Reference

Class to store a bidirectional index between two StoreArrays. More...

#include <RelationIndexContainer.h>

Inheritance diagram for RelationIndexContainer< FROM, TO >:

Classes
struct	Element
	Element type for the index. More...

Public Types
typedef boost::multi_index::multi_index_container< Element, boost::multi_index::indexed_by< boost::multi_index::ordered_non_unique< boost::multi_index::member< Element, const FROM *, &Element::from > >, boost::multi_index::ordered_non_unique< boost::multi_index::member< Element, const TO *, &Element::to > > > >	ElementIndex
	Boost MultiIndex container to keep the bidirectional index.

Public Member Functions
	operator bool () const
	Returns true if relation is valid.
const ElementIndex &	index () const
	Get the index.
ElementIndex &	index ()
	Get the index.
AccessorParams	getAccessorParams () const
	Get the AccessorParams of the underlying relation.
const AccessorParams &	getFromAccessorParams () const
	Get the AccessorParams of the StoreArray the relation points from.
const AccessorParams &	getToAccessorParams () const
	Get the AccessorParams of the StoreArray the relation points to.

Protected Member Functions
	RelationIndexContainer (const RelationArray &relArray)
	Constructor to create a new IndexContainer.
	RelationIndexContainer (const RelationIndexContainer &)=delete
	Restrict copies.
RelationIndexContainer &	operator= (const RelationIndexContainer &)=delete
	Restrict copies.
void	rebuild (bool force=false)
	Rebuild the index.
virtual void	clear () override
	Clear the index (at the end of an event)

Protected Attributes
ElementIndex	m_index
	Instance of the index.
RelationArray	m_storeRel
	the underlying relation.
AccessorParams	m_storeFrom
	AccessorParams of the StoreArray the relation points from.
AccessorParams	m_storeTo
	AccessorParams of the StoreArray the relation points to.
bool	m_valid
	Indicate wether the relation is valid.

Friends
class	RelationIndexManager
	Allow the RelationIndexManager to create instances.

Detailed Description

template<class FROM, class TO>
class Belle2::RelationIndexContainer< FROM, TO >

Class to store a bidirectional index between two StoreArrays.

This class provides a bidirectional access to a given Relation to ease use of Relations for the normal user. There is no support for changing or adding Relations. All instances of this class will be managed and created by the RelationIndexManager.

This class is only used internally, users should use RelationsObject/RelationsInterface to access/add relations.

Definition at line 50 of file RelationIndexContainer.h.

Member Typedef Documentation

ElementIndex

typedef boost::multi_index::multi_index_container< Element, boost::multi_index::indexed_by < boost::multi_index::ordered_non_unique < boost::multi_index::member<Element, const FROM*, &Element::from> >, boost::multi_index::ordered_non_unique < boost::multi_index::member<Element, const TO*, &Element::to> > > > ElementIndex

Boost MultiIndex container to keep the bidirectional index.

All the heavy lifting is done by this class

Definition at line 91 of file RelationIndexContainer.h.

Constructor & Destructor Documentation

RelationIndexContainer()

RelationIndexContainer ( const RelationArray &  relArray )

inlineexplicitprotected

Constructor to create a new IndexContainer.

Parameters

relArray

RelationArray to build the relation for

Definition at line 115 of file RelationIndexContainer.h.

                                                                  : m_storeRel(relArray), m_valid(false)
    {
      rebuild(true);
    }

Member Function Documentation

clear()

virtual void clear ( )

inlineoverrideprotectedvirtual

Clear the index (at the end of an event)

Implements RelationIndexBase.

Definition at line 134 of file RelationIndexContainer.h.

{ m_index.clear(); }

getAccessorParams()

AccessorParams getAccessorParams ( ) const

inline

Get the AccessorParams of the underlying relation.

Definition at line 102 of file RelationIndexContainer.h.

{ return m_storeRel.getAccessorParams(); }

getFromAccessorParams()

const AccessorParams & getFromAccessorParams ( ) const

inline

Get the AccessorParams of the StoreArray the relation points from.

Definition at line 105 of file RelationIndexContainer.h.

{ return m_storeFrom; }

getToAccessorParams()

const AccessorParams & getToAccessorParams ( ) const

inline

Get the AccessorParams of the StoreArray the relation points to.

Definition at line 108 of file RelationIndexContainer.h.

{ return m_storeTo; }

index() [1/2]

ElementIndex & index ( )

inline

Get the index.

Definition at line 99 of file RelationIndexContainer.h.

{ return m_index; }

index() [2/2]

const ElementIndex & index ( ) const

inline

Get the index.

Definition at line 97 of file RelationIndexContainer.h.

{ return m_index; }

operator bool()

operator bool ( ) const

inline

Returns true if relation is valid.

Definition at line 94 of file RelationIndexContainer.h.

{ return m_valid; }

Friends And Related Function Documentation

RelationIndexManager

friend class RelationIndexManager

friend

Allow the RelationIndexManager to create instances.

Definition at line 152 of file RelationIndexContainer.h.

Member Data Documentation

m_index

ElementIndex m_index

protected

Instance of the index.

Definition at line 137 of file RelationIndexContainer.h.

m_storeFrom

AccessorParams m_storeFrom

protected

AccessorParams of the StoreArray the relation points from.

Definition at line 143 of file RelationIndexContainer.h.

m_storeRel

RelationArray m_storeRel

protected

the underlying relation.

Definition at line 140 of file RelationIndexContainer.h.

m_storeTo

AccessorParams m_storeTo

protected

AccessorParams of the StoreArray the relation points to.

Definition at line 146 of file RelationIndexContainer.h.

m_valid

bool m_valid

protected

Indicate wether the relation is valid.

Definition at line 149 of file RelationIndexContainer.h.

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

• framework/datastore/include/RelationIndexContainer.h