TRefTable

class TRefTable : public TObject

    public:

                        TRefTable()
                        TRefTable(TObject* owner, Int_t size)
                        TRefTable(const TRefTable&)
                virtual ~TRefTable()
          virtual Int_t Add(Int_t uid)
         static TClass* Class()
           virtual void Clear(Option_t* = "")
          virtual Int_t Expand(Int_t newsize)
           virtual void FillBuffer(TBuffer& b)
                  Int_t GetN() const
               TObject* GetOwner() const
               TObject* GetParent(Int_t uid) const
             TObjArray* GetParents() const
      static TRefTable* GetRefTable()
                  Int_t GetSize() const
                 UInt_t GetUID() const
        virtual TClass* IsA() const
         virtual Bool_t Notify()
             TRefTable& operator=(const TRefTable&)
           virtual void ReadBuffer(TBuffer& b)
          virtual Int_t SetParent(const TObject* parent)
            static void SetRefTable(TRefTable* table)
           virtual void SetUID(UInt_t uid)
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

                  Int_t fSize       allocated size of array fParentIDs
                  Int_t fN          current maximum number of IDs in array fParentIDs
                 Int_t* fParentIDs  [fSize] array of Parent IDs
                  Int_t fParentID   current parent ID in fParents (latest call to SetParent)
                 UInt_t fUID        !Current uid (set by TRef::GetObject)
             TObjArray* fParents    array of Parent objects  (eg TTree branch) holding the referenced objects 
               TObject* fOwner      Object owning this TRefTable
      static TRefTable* fgRefTable  Pointer to current TRefTable

Class Description

 TRefTable

 A TRefTable maintains the association between a referenced object    
 and the parent object supporting this referenced object.             
 The parent object is typically a branch of a TTree.                  
                                                                      

 Default constructor for I/O

 Create a TRefTable with initial size

 add a new uid to the table
 we add a new pair (uid,fparent) to the map
 This function is called by TObject::Streamer or TStreamerInfo::WriteBuffer

 clear all entries in the table

 expand fParentID to newsize

 fill buffer b with the fN elements in fParentdIDs
 This function is called by TBranchRef::FillLeaves

 return object corresponding to uid

 static function returning the current TRefTable

 This function is called by TRef::Streamer or TStreamerInfo::ReadBuffer
 when reading a reference.
 This function, in turns, notifies the TRefTable owner for action.
 eg, when the owner is a TBranchRef, TBranchRef::Notify is called
 to read the branch containing the referenced object.

 fill buffer b with the fN elements in fParentdIDs
 This function is called by TBranchRef::ReadLeaves

 Set Current parent object
 The parent object is typically a branch of a Tree.
 This function is called by TBranchElement::Fill

 static function setting the current TRefTable

Inline Functions

              Int_t GetSize() const
              Int_t GetN() const
           TObject* GetOwner() const
         TObjArray* GetParents() const
             UInt_t GetUID() const
               void SetUID(UInt_t uid)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
          TRefTable TRefTable(const TRefTable&)
         TRefTable& operator=(const TRefTable&)