TFriendElement

class TFriendElement : public TNamed

    public:

                          TFriendElement()
                          TFriendElement(TTree* tree, const char* treename, const char* filename)
                          TFriendElement(TTree* tree, const char* treename, TFile* file)
                          TFriendElement(TTree* tree, TTree* friendtree, const char* alias)
                          TFriendElement(const TFriendElement&)
                  virtual ~TFriendElement()
           static TClass* Class()
           virtual TTree* Connect()
           virtual TTree* DisConnect()
           virtual TFile* GetFile()
           virtual TTree* GetParentTree() const
           virtual TTree* GetTree()
      virtual const char* GetTreeName() const
          virtual TClass* IsA() const
             virtual void ls(Option_t* option = "") const
          TFriendElement& operator=(const TFriendElement&)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

       TTree* fParentTree  !pointer to the parent TTree
       TTree* fTree        !pointer to the TTree described by this element
       TFile* fFile        !pointer to the file containing the friend TTree
      TString fTreeName    name of the friend TTree
       Bool_t fOwnFile     true if file is managed by this class

    public:

      static const enum TFriendElement:: kFromChain  

Class Description

                                                                      
 TFriendElement                                                       
                                                                      
 A TFriendElement TF describes a TTree object TF in a file.           
 When a TFriendElement TF is added to the the list of friends of an   
 existing TTree T, any variable from TF can be referenced in a query  
 to T.                                                                
                                                                      
 To add a TFriendElement to an existing TTree T, do:                  
       T.AddFriend("friendTreename","friendTreeFile");                
                                                                      
  See TTree::AddFriend for more information.                          
                                                                      

*-*-*-*-*-*Default constructor for a friend element*-*-*-*-*-*-*-*-*-*-*-*-*
*-*        =======================================

*-*-*-*-*-*-*-*-*-*-*-*-*Create a friend element*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ======================

 If treename is of the form "a=b", an alias called "a" is created for
 treename = "b" by default the alias name is the name of the tree.

*-*-*-*-*-*-*-*-*-*-*-*-*Create a friend element*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                      ======================

 If treename is of the form "a=b", an alias called "a" is created for
 treename = "b" by default the alias name is the name of the tree.
 The passed TFile is managed by the user (i.e. user must delete the TFile).

 Create a friend element.

 Destructor.  Disconnect from the owning tree if needed.

 Connect file and return TTree.

 DisConnect file and TTree.

 Return pointer to TFile containing this friend TTree.

 Return pointer to friend TTree.

 List this friend element.

Inline Functions

                 TTree* GetParentTree() const
            const char* GetTreeName() const
                TClass* Class()
                TClass* IsA() const
                   void ShowMembers(TMemberInspector& insp, char* parent)
                   void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)
         TFriendElement TFriendElement(const TFriendElement&)
        TFriendElement& operator=(const TFriendElement&)