TEventList

class TEventList : public TNamed

    public:

                        TEventList()
                        TEventList(const char* name, const char* title = "", Int_t initsize = 0, Int_t delta = 0)
                        TEventList(const TEventList& list)
                virtual ~TEventList()
           virtual void Add(const TEventList* list)
         static TClass* Class()
           virtual void Clear(Option_t* option = "")
         virtual Bool_t Contains(Long64_t entry)
           virtual void Enter(Long64_t entry)
            TDirectory* GetDirectory() const
       virtual Long64_t GetEntry(Int_t index) const
          virtual Int_t GetIndex(Long64_t entry) const
      virtual Long64_t* GetList() const
          virtual Int_t GetN() const
         virtual Bool_t GetReapplyCut() const
          virtual Int_t GetSize() const
           virtual void Intersect(const TEventList* list)
        virtual TClass* IsA() const
          virtual Int_t Merge(TCollection* list)
            TEventList& operator=(const TEventList& list)
           virtual void Print(Option_t* option = "") const
           virtual void Reset(Option_t* option = "")
           virtual void Resize(Int_t delta = 0)
           virtual void SetDelta(Int_t delta = 100)
           virtual void SetDirectory(TDirectory* dir)
           virtual void SetName(const char* name)
           virtual void SetReapplyCut(Bool_t apply = kFALSE)
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
           virtual void Sort()
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)
           virtual void Subtract(const TEventList* list)

Data Members

    protected:

            Int_t fN          Number of elements in the list
            Int_t fSize       Size of array
            Int_t fDelta      Increment size
           Bool_t fReapply    If true, TTree::Draw will 'reapply' the original cut
        Long64_t* fList       [fN]Array of elements
      TDirectory* fDirectory  ! Pointer to directory holding this tree

Class Description

                                                                      
 A TEventList object is a list of selected events (entries) in a TTree
                                                                      
 A TEventList is automatically generated by TTree::Draw: example      
      tree->Draw(">>elist1","x<0 && y> 0");                           
         In this example, a TEventList object named "elist1" will be  
         generated. (Previous contents are overwritten).              
      tree->Draw(">>+elist1","x<0 && y> 0");                          
         In this example, selected entries are added to the list.     
                                                                      
 The TEventList object is added to the list of objects in the current 
 directory.                                                           
 Use TTree:SetEventList(TEventList *list) to inform TTree that you    
 want to use the list as input. The following code gets a pointer to  
 the TEventList object created in the above commands:                 
     TEventList *list = (TEventList*)gDirectory->Get("elist1");       
                                                                      
 Use function Enter to enter an element in the list                   
 The function Add may be used to merge two lists.                     
 The function Subtract may be used to subtract two lists.             
 The function Reset may be used to reset a list.                      
 Use TEventList::Print(option) to print the contents.                 
      (option "all" prints all the list entries).                     
   Operators + and - correspond to functions Add and Subtract.        
 A TEventList object can be saved on a file via the Write function.   
                                                                      

*-*-*-*-*-*Default constructor for a EventList*-*-*-*-*-*-*-*-*-*-*-*-*
*-*        ==================================

*-*-*-*-*-*-*-*-*-*-*-*-*Create a EventList*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      =================

  This Eventlist is added to the list of objects in current directory

*-*-*-*-*-*-*-*-*-*-*-*-*Copy constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ================

*-*-*-*-*-*Default destructor for a EventList*-*-*-*-*-*-*-*-*-*-*-*
*-*        =================================

          Merge contents of alist with this list.
   Both alist and this list are assumed to be sorted prior to this call

 Return TRUE if list contains entry.

 Enter element entry into the list.

 Return value of entry at index in the list.
 Return -1 if index is not in the list range.

 Return index in the list of element with value entry
 array is supposed  to be sorted prior to this call.
 If match is found, function returns position of element.
 If no match found, function returns -1.

 Remove elements from this list that are NOT present in alist.

 Merge entries in all the TEventList in the collection in this event list

          Print contents of this list

          Reset number of entries in event list

          Resize list by delta entries

 Remove reference to this EventList from current directory and add
 reference to new directory dir. dir can be 0 in which case the list
 does not belong to any directory.

 Change the name of this TEventList

          Sort list entries in increasing order

 Stream an object of class TEventList.

 Remove elements from this list that are present in alist.

Inline Functions

               void Clear(Option_t* option = "")
        TDirectory* GetDirectory() const
          Long64_t* GetList() const
              Int_t GetN() const
             Bool_t GetReapplyCut() const
              Int_t GetSize() const
               void SetDelta(Int_t delta = 100)
               void SetReapplyCut(Bool_t apply = kFALSE)
        TEventList& operator=(const TEventList& list)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void StreamerNVirtual(TBuffer& b)