DBAccessorBase Class Reference

Base class for DBObjPtr and DBArray for easier common treatment. More...

#include <DBAccessorBase.h>

Inherited by DBArray< T >, DBObjPtr< T >, DBObjPtr< PayloadFile >, PyDBArray [private], PyDBObj [private], DBArray< Belle2::CDCChannelMap >, DBArray< Belle2::CDCDisplacement >, DBArray< Belle2::CDCFEElectronics >, DBArray< Belle2::ECLDspData >, DBArray< Belle2::ECLShowerShapeSecondMomentCorrection >, DBArray< Belle2::TestCalibObject >, DBArray< Belle2::TOPChannelMap >, DBArray< Belle2::TOPFrontEndMap >, DBArray< Belle2::TOPPmtInstallation >, DBArray< Belle2::TOPPmtQE >, DBArray< Belle2::TRGECLETMPara >, DBArray< Belle2::TRGECLFAMPara >, DBObjPtr< Belle2::ARICHAeroTilesAlignment >, DBObjPtr< Belle2::ARICHChannelMapping >, DBObjPtr< Belle2::ARICHChannelMask >, DBObjPtr< Belle2::ARICHCopperMapping >, DBObjPtr< Belle2::ARICHGeoMergerCooling >, DBObjPtr< Belle2::ARICHGeometryConfig >, DBObjPtr< Belle2::ARICHGlobalAlignment >, DBObjPtr< Belle2::ARICHMergerMapping >, DBObjPtr< Belle2::ARICHMirrorAlignment >, DBObjPtr< Belle2::ARICHModulesInfo >, DBObjPtr< Belle2::ARICHReconstructionPar >, DBObjPtr< Belle2::ARICHSimulationPar >, DBObjPtr< Belle2::BeamParameters >, DBObjPtr< Belle2::BeamSpot >, DBObjPtr< Belle2::BKLMADCThreshold >, DBObjPtr< Belle2::BKLMSimulationPar >, DBObjPtr< Belle2::CDCADCDeltaPedestals >, DBObjPtr< Belle2::CDCAlignment >, DBObjPtr< Belle2::CDCBadWires >, DBObjPtr< Belle2::CDCCrossTalkLibrary >, DBObjPtr< Belle2::CDCDedx1DCell >, DBObjPtr< Belle2::CDCDedx2DCell >, DBObjPtr< Belle2::CDCDedxADCNonLinearity >, DBObjPtr< Belle2::CDCDedxBadWires >, DBObjPtr< Belle2::CDCDedxCosineCor >, DBObjPtr< Belle2::CDCDedxCosineEdge >, DBObjPtr< Belle2::CDCDedxHadronCor >, DBObjPtr< Belle2::CDCDedxMeanPars >, DBObjPtr< Belle2::CDCDedxMomentumCor >, DBObjPtr< Belle2::CDCDedxRunGain >, DBObjPtr< Belle2::CDCDedxScaleFactor >, DBObjPtr< Belle2::CDCDedxSigmaPars >, DBObjPtr< Belle2::CDCDedxWireGain >, DBObjPtr< Belle2::CDCEDepToADCConversions >, DBObjPtr< Belle2::CDCFudgeFactorsForSigma >, DBObjPtr< Belle2::CDCGeometry >, DBObjPtr< Belle2::CDCMisalignment >, DBObjPtr< Belle2::CDCPropSpeeds >, DBObjPtr< Belle2::CDCSpaceResols >, DBObjPtr< Belle2::CDCTimeWalks >, DBObjPtr< Belle2::CDCTimeZeros >, DBObjPtr< Belle2::CDCTrigger2DConfig >, DBObjPtr< Belle2::CDCTriggerNeuroConfig >, DBObjPtr< Belle2::CDCWireHitRequirements >, DBObjPtr< Belle2::CDCXtRelations >, DBObjPtr< Belle2::ChargedPidMVAWeights >, DBObjPtr< Belle2::CollisionBoostVector >, DBObjPtr< Belle2::CollisionInvariantMass >, DBObjPtr< Belle2::DatabaseRepresentationOfWeightfile >, DBObjPtr< Belle2::DBRepresentationOfSoftwareTriggerCut >, DBObjPtr< Belle2::DedxPDFs >, DBObjPtr< Belle2::ECLChannelMap >, DBObjPtr< Belle2::ECLChargedPidPDFs >, DBObjPtr< Belle2::ECLCrystalCalib >, DBObjPtr< Belle2::ECLDigitWaveformParametersForMC >, DBObjPtr< Belle2::ECLHadronComponentEmissionFunction >, DBObjPtr< Belle2::ECLShowerCorrectorLeakageCorrection >, DBObjPtr< Belle2::ECLShowerEnergyCorrectionTemporary >, DBObjPtr< Belle2::ECLTrackClusterMatchingParameterizations >, DBObjPtr< Belle2::ECLTrackClusterMatchingThresholds >, DBObjPtr< Belle2::EKLMChannels >, DBObjPtr< Belle2::EKLMReconstructionParameters >, DBObjPtr< Belle2::EKLMTimeCalibration >, DBObjPtr< Belle2::GeoConfiguration >, DBObjPtr< Belle2::KLMChannelStatus >, DBObjPtr< Belle2::KLMElectronicsMap >, DBObjPtr< Belle2::KLMLikelihoodParameters >, DBObjPtr< Belle2::KLMScintillatorDigitizationParameters >, DBObjPtr< Belle2::KLMStripEfficiency >, DBObjPtr< Belle2::KLMTimeConversion >, DBObjPtr< Belle2::KLMTimeWindow >, DBObjPtr< Belle2::MagneticField >, DBObjPtr< Belle2::ParticleWeightingLookUpTable >, DBObjPtr< Belle2::PayloadFile >, DBObjPtr< Belle2::PXDClusterChargeMapPar >, DBObjPtr< Belle2::PXDClusterPositionEstimatorPar >, DBObjPtr< Belle2::PXDClusterShapeIndexPar >, DBObjPtr< Belle2::PXDDeadPixelPar >, DBObjPtr< Belle2::PXDGainMapPar >, DBObjPtr< Belle2::PXDMaskedPixelPar >, DBObjPtr< Belle2::ROIParameters >, DBObjPtr< Belle2::SoftwareTriggerMenu >, DBObjPtr< Belle2::SVDCalibrationsBase >, DBObjPtr< Belle2::SVDGlobalConfigParameters >, DBObjPtr< Belle2::SVDLocalConfigParameters >, DBObjPtr< Belle2::TestCalibMean >, DBObjPtr< Belle2::TOPCalAsicShift >, DBObjPtr< Belle2::TOPCalChannelMask >, DBObjPtr< Belle2::TOPCalChannelNoise >, DBObjPtr< Belle2::TOPCalChannelPulseHeight >, DBObjPtr< Belle2::TOPCalChannelRQE >, DBObjPtr< Belle2::TOPCalChannelT0 >, DBObjPtr< Belle2::TOPCalChannelThreshold >, DBObjPtr< Belle2::TOPCalChannelThresholdEff >, DBObjPtr< Belle2::TOPCalCommonT0 >, DBObjPtr< Belle2::TOPCalModuleAlignment >, DBObjPtr< Belle2::TOPCalModuleT0 >, DBObjPtr< Belle2::TOPCalTimebase >, DBObjPtr< Belle2::TOPCalTimeWalk >, DBObjPtr< Belle2::TOPFrontEndSetting >, DBObjPtr< Belle2::TOPGeometry >, DBObjPtr< Belle2::TRGGDLDBAlgs >, DBObjPtr< Belle2::TRGGDLDBBadrun >, DBObjPtr< Belle2::TRGGDLDBFTDLBits >, DBObjPtr< Belle2::TRGGDLDBInputBits >, DBObjPtr< Belle2::TRGGDLDBPrescales >, DBObjPtr< Belle2::TRGGDLDBUnpacker >, and DBObjPtr< Belle2::VXDAlignment >.

Collaboration diagram for DBAccessorBase:

Public Member Functions
	DBAccessorBase (const std::string &name, const TClass *objClass, bool isArray, bool isRequired)
	Constructor to access an object in the DBStore. More...
	DBAccessorBase (DBStoreEntry::EPayloadType type, const std::string &name, bool isRequired)
	Constructor to access an object in the DBStore which is not a ROOT Object. More...
virtual	~DBAccessorBase ()
	Destructor. More...
const std::string &	getName () const
	Return name under which the object is saved in the DBStore.
bool	isValid () const
	Check whether a valid object was obtained from the database. More...
virtual bool	operator== (const DBAccessorBase &other) const
	Check if two store accessors point to the same object/array.
virtual bool	operator!= (const DBAccessorBase &other) const
	Check if two store accessors point to a different object/array.
bool	hasChanged ()
	Check whether the object has changed since the last call to hasChanged of the accessor).
void	addCallback (std::function< void(const std::string &)> callback, bool onDestruction=false)
	Add a callback method. More...
void	addCallback (std::function< void()> callback, bool onDestruction=false)
	Add a callback method. More...
template<class T >
void	addCallback (T *object, void(T::*callback)())
	Add a callback method of an object. More...
unsigned int	getRevision () const
	Return current revision of the object.
IntervalOfValidity	getIoV () const
	Return current IoV of the object.
const std::string &	getChecksum () const
	Get current checksum.
const std::string &	getFilename () const
	Get the filename this object is loaded from.
bool	isRequired () const
	Check whether this conditions object is required (at least one user declared it as required)

Protected Member Functions
template<class T = TObject>
const T *	getObject () const
	Return a pointer to the Object already cast to the correct type.
bool	ensureAttached () const
	Make sure we are attached to the the DBStore. More...
void	storeEntryChanged (bool destructed)
	Callback function which gets called by the DBStoreEntry object if it changes.

Protected Attributes
const DBStoreEntry::EPayloadType	m_type
	Type of the payload.
const std::string	m_name
	Name of the payload in the database.
const TClass *	m_objClass
	Class of the payload if type is c_Object.
const bool	m_isArray
	True if the payload is an array of objects.
const bool	m_isRequired
	True if the payload is required, otherwise no errors will be raised if it cannot be found.
DBStoreEntry *	m_entry
	Pointer to the entry in the DBStore.
bool	m_changed {false}
	Internal flag whether the object has changed since we last checked.
std::vector< std::pair< std::function< void(const std::string &)>, bool > >	m_callbacks
	List of all registered callback functions.

Friends
class	DBStoreEntry
	Allow the DBStoreEntry to call the callback notifier.

Detailed Description

Base class for DBObjPtr and DBArray for easier common treatment.

Definition at line 28 of file DBAccessorBase.h.

Constructor & Destructor Documentation

DBAccessorBase() [1/2]

DBAccessorBase ( const std::string &  name, const TClass *  objClass, bool  isArray, bool  isRequired  )

inline

Constructor to access an object in the DBStore.

Parameters

name	Name under which the object is stored in the database (and DBStore).
objClass	The type of the object.
isArray	Flag that indicates whether this is a single object or a TClonesArray.
isRequired	If true emit errors if the object cannot be found in the Database

Definition at line 38 of file DBAccessorBase.h.

                                                                                                 :
      m_type(DBStoreEntry::c_Object), m_name(name), m_objClass(objClass), m_isArray(isArray), m_isRequired(isRequired),
      m_entry{DBStore::Instance().getEntry(name, objClass, isArray, isRequired)}, m_changed{isValid()}
    {
      if (m_entry) m_entry->registerAccessor(this);
    }

DBAccessorBase() [2/2]

DBAccessorBase ( DBStoreEntry::EPayloadType  type, const std::string &  name, bool  isRequired  )

inline

Constructor to access an object in the DBStore which is not a ROOT Object.

Parameters

type	should be one of c_RootFile or c_RawFile.
name	Name under which the object is stored in the database (and DBStore).
isArray	Flag that indicates whether this is a single object or a TClonesArray.
isRequired	If true emit errors if the object cannot be found in the Database

Definition at line 52 of file DBAccessorBase.h.

~DBAccessorBase()

virtual ~DBAccessorBase ( )

inlinevirtual

Destructor.

Virtual because this is a base class.

Definition at line 63 of file DBAccessorBase.h.

Member Function Documentation

addCallback() [1/3]

void addCallback ( std::function< void()>  callback, bool  onDestruction = false  )

inline

Add a callback method.

The given method will be called whenever there is a new database entry for this DBAccessor.

Parameters

callback	function pointer to a callback function
onDestruction	if true the callback will not be called for each change but only when the Database entry is deleted and can be used to remove dangling pointers to the entry.

Definition at line 121 of file DBAccessorBase.h.

addCallback() [2/3]

void addCallback ( std::function< void(const std::string &)>  callback, bool  onDestruction = false  )

inline

Add a callback method.

The given method will be called whenever there is a new database entry for this DBAccessor. The one parameter is the name of the DB entry which changed (in case the same callback method is to be used for multiple payloads.

Parameters

callback	function pointer to a callback function
onDestruction	if true the callback will not be called for each change but only when the Database entry is deleted and can be used to remove dangling pointers to the entry.

Definition at line 108 of file DBAccessorBase.h.

addCallback() [3/3]

void addCallback ( T *  object, void(T::*)()  callback  )

inline

Add a callback method of an object.

The given method will be called whenever there is a new database entry for this DBAccessor.

Parameters

object	The object with the callback method.
callback	The callback method.

Definition at line 133 of file DBAccessorBase.h.

ensureAttached()

bool ensureAttached ( ) const

inlineprotected

Make sure we are attached to the the DBStore.

If not try to reconnect

Definition at line 162 of file DBAccessorBase.h.

isValid()

bool isValid ( ) const

inline

Check whether a valid object was obtained from the database.

Returns

True if the object exists.

Definition at line 75 of file DBAccessorBase.h.

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

• framework/database/include/DBAccessorBase.h