class RooMultiCatIter: public TIterator

RooMultiCatIter iterators over all state permutations of a list of categories. It serves as the state iterator for a RooSuperCategory or a RooMultiCategory. Since this iterator only constructs state labels and does not change the value of its input categories, it is not required that its inputs are LValues. For cases where all inputs are LValues (such as for RooSuperCategory) the values of the input can be changes by assigning the super category the string label generated by this iterator

Function Members (Methods)

public:

	RooMultiCatIter(const RooMultiCatIter& other)
	RooMultiCatIter(const RooArgSet& catList, const char* rangeName = 0)
virtual	~RooMultiCatIter()
static TClass*	Class()
virtual const TCollection*	GetCollection() const
virtual Option_t*	TIterator::GetOption() const
virtual TClass*	IsA() const
virtual TObject*	Next()
virtual bool	operator!=(const TIterator& aIter) const
TObject*	TIterator::operator()()
virtual TObject*	operator*() const
RooMultiCatIter&	operator=(const RooMultiCatIter&)
virtual void	Reset()
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

protected:

TObjString*	compositeLabel()
void	initialize(const RooArgSet& catList)
virtual TIterator&	operator=(const TIterator&)

Data Members

protected:

RooArgSet	_catList	Set of categories iterated over
RooAbsCategoryLValue**	_catPtrList	Array of pointers to original categories
TObjString	_compositeLabel
TObject*	_curItem	Current item returned by Next()
Int_t	_curIter	Current location of master iterator
RooCatType*	_curTypeList	List of current types
TIterator**	_iterList	Array of category type iterators
Int_t	_nIter	Number of categories/iterators in use
TString	_rangeName	Range name (optional)

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

RooMultiCatIter(const RooArgSet& catList, const char* rangeName = 0)

 Construct iterator over all permutations of states of categories in catList.
 If rangeName is not null, iteration is restricted to states that are selected
 in the given range name

RooMultiCatIter(const RooMultiCatIter& other)

 Copy constructor

void initialize(const RooArgSet& catList)

 Build iterator array for given catList

~RooMultiCatIter()

 Destructor

const TCollection* GetCollection() const

 Dummy implementation, always returns zero

TObjString* compositeLabel()

 Construct string with composite object
 label corresponding to the state name
 of a RooMultiCategory or RooSuperCategory
 constructed from this set of input categories

TObject* Next()

 Iterator increment operator

void Reset()

 Rewind master iterator

TObject * operator*() const

 Return current item (dummy)

bool operator!=(const TIterator& aIter) const

 Comparison operator to other iterator
 Returns true if both iterator iterate over the
 same set of input categories and are not at the
 same sequential position

TIterator& operator=(const TIterator&)

{ return *this ; }