TPObjRef Class Reference

This class is an object reference used in Athena persistent data model. More...

#include <TPObjRef.h>

Collaboration diagram for TPObjRef:

Classes
class	typeID_t
	This structure holds an ID of a persistent type. More...

Public Member Functions
	TPObjRef ()
	Default constructor - generates and empty reference (like a NULL pointer)
	TPObjRef (const typeID_t &typeID, int index)
	Constructor with parameters.
bool	isNull () const
	Tests if the reference is NULL.
unsigned	typeID () const
	returns the type ID (as integer) of the referenced object
unsigned short	topLevelCnvID () const
	returns the ID if the top-level converter for the referenced object
unsigned	index () const
	returns the position of the referenced object in the storage vector

Protected Attributes
typeID_t	m_typeID
	the type ID of the referenced object
unsigned	m_index
	the position of the referenced object in the storage vecto

Detailed Description

This class is an object reference used in Athena persistent data model.

It replaces transient pointers and can also replace embedding and inheritance. Works only inside a single top-level persistent object or group of objects created by a given AthenaPool converter.

Author

Marci.nosp@m.n.No.nosp@m.wak@c.nosp@m.ern..nosp@m.ch

Definition at line 20 of file TPObjRef.h.

Constructor & Destructor Documentation

TPObjRef() [1/2]

TPObjRef::TPObjRef ( )

inline

Default constructor - generates and empty reference (like a NULL pointer)

Definition at line 56 of file TPObjRef.h.

: m_index(0) {}

TPObjRef() [2/2]

TPObjRef::TPObjRef ( const typeID_t & typeID, int index )

inline

Constructor with parameters.

Parameters

[in]	typeID	type ID of the persistent object the reference is pointing to
[in]	index	position of the object in the storage vector in the top-level persistent object

Definition at line 62 of file TPObjRef.h.

    : m_typeID(typeID),
      m_index(index)
  { }

Member Function Documentation

index()

unsigned TPObjRef::index ( ) const

inline

returns the position of the referenced object in the storage vector

Definition at line 77 of file TPObjRef.h.

{ return m_index; }

isNull()

bool TPObjRef::isNull ( ) const

inline

Tests if the reference is NULL.

Definition at line 68 of file TPObjRef.h.

{ return m_typeID.isNull(); }

topLevelCnvID()

unsigned short TPObjRef::topLevelCnvID ( ) const

inline

returns the ID if the top-level converter for the referenced object

Definition at line 74 of file TPObjRef.h.

{ return m_typeID.topLevelCnvID(); }

typeID()

unsigned TPObjRef::typeID ( ) const

inline

returns the type ID (as integer) of the referenced object

Definition at line 71 of file TPObjRef.h.

{ return m_typeID.value(); }

Member Data Documentation

m_index

unsigned TPObjRef::m_index

protected

the position of the referenced object in the storage vecto

Definition at line 81 of file TPObjRef.h.

m_typeID

typeID_t TPObjRef::m_typeID

protected

the type ID of the referenced object

Definition at line 80 of file TPObjRef.h.

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

• TPObjRef.h