DBPointer< T, KEY, METHOD, NAME > Class Template Reference

Class for pointing to an element in an array stored in the database. More...

#include <DBPointer.h>

Public Member Functions
	DBPointer (KEY key)
	Constructor of pointer to an array element in the database. More...
KEY	key () const
	Accessor for key value.
	operator KEY () const
	Accessor for key value.
KEY	operator= (KEY key)
	Setter for key value.
bool	isValid () const
	Check whether we point to a valid object. More...
	operator bool () const
	Is this pointer's data safe to access?
const T &	operator* () const
	Imitate pointer functionality.
const T *	operator-> () const
	Imitate pointer functionality.

Private Member Functions
const T *	getPointer () const
	Find the referred object and set m_object to it.

Private Attributes
KEY	m_key
	Key value of the referred array element.
const T *	m_object
	Pointer to actual object.

Detailed Description

template<class T, typename KEY, KEY(T::*)() const METHOD, const std::string & NAME = DBPointer_defaultName>
class Belle2::DBPointer< T, KEY, METHOD, NAME >

Class for pointing to an element in an array stored in the database.

Definition at line 24 of file DBPointer.h.

Constructor & Destructor Documentation

DBPointer()

DBPointer ( KEY  key )

inlineexplicit

Constructor of pointer to an array element in the database.

Parameters

key	The key value to identify the element.

Definition at line 31 of file DBPointer.h.

                               :
      m_key(key), m_object(0) {};

Member Function Documentation

isValid()

bool isValid ( ) const

inline

Check whether we point to a valid object.

Returns

True if the object exists.

Definition at line 47 of file DBPointer.h.

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

• framework/database/include/DBPointer.h