RooExpensiveObjectCache is a singleton class that serves as repository for objects that are expensive to calculate.

Owners of such objects can registers these here with associated parameter values for which the object is valid, so that other instances can, at a later moment retrieve these precalculated objects.

Definition at line 24 of file RooExpensiveObjectCache.h.

Classes
class	ExpensiveObject

Public Member Functions
	RooExpensiveObjectCache ()
	Constructor.

	RooExpensiveObjectCache (const RooExpensiveObjectCache &)
	Copy constructor.

virtual	~RooExpensiveObjectCache ()
	Destructor.

void	clearAll ()
	Clear all cache elements.

Bool_t	clearObj (Int_t uniqueID)
	Clear cache element with given unique ID Retrieve payload object of cache element with given unique ID

const TObject *	getObj (Int_t uniqueID)
	Retrieve payload object of cache element with given unique ID

void	importCacheObjects (RooExpensiveObjectCache &other, const char *ownerName, Bool_t verbose=kFALSE)

void	print () const

Bool_t	registerObject (const char ownerName, const char objectName, TObject &cacheObject, const RooArgSet &params)
	Register object associated with given name and given associated parameters with given values in cache.

Bool_t	registerObject (const char ownerName, const char objectName, TObject &cacheObject, TIterator *paramIter)
	Register object associated with given name and given associated parameters with given values in cache.

const TObject *	retrieveObject (const char name, TClass tclass, const RooArgSet &params)
	Retrieve object from cache that was registered under given name with given parameters, if current parameter values match those that were stored in the registry for this object.

Bool_t	setObj (Int_t uniqueID, TObject *obj)
	Place new payload object in cache element with given unique ID.

Int_t	size () const

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.

virtual void	Copy (TObject &object) const
	Copy this to obj.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual const char *	GetName () const
	Returns name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object.

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

virtual ULong_t	Hash () const
	Return hash value for this object.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete[] (void *ptr)
	Operator delete [].

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static RooExpensiveObjectCache &	instance ()
	Return reference to singleton instance.

Static Public Member Functions inherited from TObject
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Attributes
std::map< TString, ExpensiveObject * >	_map

Int_t	_nextUID

Additional Inherited Members
Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

#include <RooExpensiveObjectCache.h>

Inheritance diagram for RooExpensiveObjectCache:

[legend]

Constructor & Destructor Documentation

◆ RooExpensiveObjectCache() [1/2]

RooExpensiveObjectCache::RooExpensiveObjectCache ( )

Constructor.

Definition at line 48 of file RooExpensiveObjectCache.cxx.

◆ RooExpensiveObjectCache() [2/2]

RooExpensiveObjectCache::RooExpensiveObjectCache ( const RooExpensiveObjectCache & other )

Copy constructor.

Definition at line 57 of file RooExpensiveObjectCache.cxx.

◆ ~RooExpensiveObjectCache()

RooExpensiveObjectCache::~RooExpensiveObjectCache ( )

virtual

Destructor.

Definition at line 67 of file RooExpensiveObjectCache.cxx.

Member Function Documentation

◆ clearAll()

void RooExpensiveObjectCache::clearAll ( )

Clear all cache elements.

Definition at line 203 of file RooExpensiveObjectCache.cxx.

◆ clearObj()

Bool_t RooExpensiveObjectCache::clearObj ( Int_t uniqueID )

Clear cache element with given unique ID Retrieve payload object of cache element with given unique ID

Definition at line 170 of file RooExpensiveObjectCache.cxx.

◆ getObj()

const TObject * RooExpensiveObjectCache::getObj ( Int_t uniqueID )

Retrieve payload object of cache element with given unique ID

Definition at line 154 of file RooExpensiveObjectCache.cxx.

◆ importCacheObjects()

void RooExpensiveObjectCache::importCacheObjects	(	RooExpensiveObjectCache &	other,
		const char *	ownerName,
		Bool_t	verbose = `kFALSE`
	)

Definition at line 347 of file RooExpensiveObjectCache.cxx.

◆ instance()

RooExpensiveObjectCache & RooExpensiveObjectCache::instance ( )

static

Return reference to singleton instance.

Definition at line 80 of file RooExpensiveObjectCache.cxx.

◆ print()

void RooExpensiveObjectCache::print ( ) const

Definition at line 307 of file RooExpensiveObjectCache.cxx.

◆ registerObject() [1/2]

Bool_t RooExpensiveObjectCache::registerObject	(	const char *	ownerName,
		const char *	objectName,
		TObject &	cacheObject,
		const RooArgSet &	params
	)

Register object associated with given name and given associated parameters with given values in cache.

The cache will take ownership_of_object and is indexed under the given name (which does not need to be the name of cacheObject and with given set of dependent parameters with validity for the current values of those parameters. It can be retrieved later by callin retrieveObject()

Definition at line 93 of file RooExpensiveObjectCache.cxx.

◆ registerObject() [2/2]

Bool_t RooExpensiveObjectCache::registerObject	(	const char *	ownerName,
		const char *	objectName,
		TObject &	cacheObject,
		TIterator *	parIter
	)

Register object associated with given name and given associated parameters with given values in cache.

The cache will take ownership_of_object and is indexed under the given name (which does not need to be the name of cacheObject and with given set of dependent parameters with validity for the current values of those parameters. It can be retrieved later by callin retrieveObject()

Definition at line 110 of file RooExpensiveObjectCache.cxx.

◆ retrieveObject()

const TObject * RooExpensiveObjectCache::retrieveObject	(	const char *	name,
		TClass *	tc,
		const RooArgSet &	params
	)

Retrieve object from cache that was registered under given name with given parameters, if current parameter values match those that were stored in the registry for this object.

The return object is owned by the cache instance.

Definition at line 132 of file RooExpensiveObjectCache.cxx.

◆ setObj()

Bool_t RooExpensiveObjectCache::setObj	(	Int_t	uid,
		TObject *	obj
	)

Place new payload object in cache element with given unique ID.

Cache will take ownership of provided object!

Definition at line 187 of file RooExpensiveObjectCache.cxx.

◆ size()

Int_t RooExpensiveObjectCache::size ( ) const

inline

Definition at line 44 of file RooExpensiveObjectCache.h.

Member Data Documentation

◆ _map

std::map<TString,ExpensiveObject*> RooExpensiveObjectCache::_map

protected

Definition at line 80 of file RooExpensiveObjectCache.h.

◆ _nextUID

Int_t RooExpensiveObjectCache::_nextUID