TTreeSQL

class TTreeSQL : public TTree

    protected:

      virtual TBranch* BranchImp(const char* branchname, const char* classname, TClass* ptrClass, void* addobj, Int_t bufsize, Int_t splitlevel)
      virtual TBranch* BranchImp(const char* branchname, TClass* ptrClass, void* addobj, Int_t bufsize, Int_t splitlevel)
                  void CheckBasket(TBranch* tb)
                Bool_t CheckBranch(TBranch* tb)
                Bool_t CheckTable(const TString& table) const
               TString ConvertTypeName(const TString& typeName)
      virtual TBasket* CreateBasket(TBranch* br)
          virtual void CreateBranch(const TString& branchName, const TString& typeName)
               TString CreateBranches(TSQLResult* rs)
                  void CreateTable(const TString& table)
        vector<Int_t>* GetColumnIndice(TBranch* branch)
                  void Init()
                  void ResetQuery()

    public:

                       TTreeSQL(TSQLServer* server, TString DB, const TString& table)
                       TTreeSQL(const TTreeSQL&)
                       ~TTreeSQL()
         virtual Int_t Branch(TCollection* list, Int_t bufsize = 32000, Int_t splitlevel = 99, const char* name = "")
         virtual Int_t Branch(TList* list, Int_t bufsize = 32000, Int_t splitlevel = 99)
         virtual Int_t Branch(const char* folder, Int_t bufsize = 32000, Int_t splitlevel = 99)
      virtual TBranch* Branch(const char* name, void* address, const char* leaflist, Int_t bufsize)
      virtual TBranch* BranchOld(const char* name, const char* classname, void* addobj, Int_t bufsize = 32000, Int_t splitlevel = 1)
      virtual TBranch* Bronch(const char* name, const char* classname, void* addobj, Int_t bufsize = 32000, Int_t splitlevel = 99)
        static TClass* Class()
         virtual Int_t Fill()
      virtual Long64_t GetEntries() const
      virtual Long64_t GetEntriesFast() const
         virtual Int_t GetEntry(Long64_t entry = 0, Int_t getall = 0)
               TString GetTableName()
       virtual TClass* IsA() const
      virtual Long64_t LoadTree(Long64_t entry)
      virtual Long64_t PrepEntry(Long64_t entry)
          virtual void Refresh()
          virtual void ShowMembers(TMemberInspector& insp, char* parent)
          virtual void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

            Int_t fCurrentEntry   
          TString fDB             
          TString fInsertQuery    
          TString fQuery          
          TString fTable          
      TSQLResult* fResult         
         TSQLRow* fRow            
      TSQLServer* fServer         
           Bool_t fBranchChecked  

                                                                      
 TTreeSQL                                                             
                                                                      
 Implement TTree for a SQL backend                                    
                                                                      

 Constructor with an explicit TSQLServer

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 Check if the basket is properly setup

 Check if the table has a column corresponding the branch
 and that the resultset are properly setup

 Check the table exist in the database

 Convert from ROOT typename to SQL typename

 Create a TBasketSQL

 Create the column(s) in the database that correspond to the branch

 determine leaf description string

 Create the database table corresponding to this TTree.

 Initializeation routine

 Copy the information from the user object to the TTree

 Return a vector of columns index corresponding to the
 current SQL table and the branch given as argument
 Returns 0 if no columns indices is found
 Otherwise returns a pointer to a vector to be deleted by the caller

 Get the number of rows in the database

 Return the number of entries as of the last check.
 Use GetEntries for a more accurate count.

 Load the data for the entry from the database.

 Setup the tree to the load the specified entry.

 Make sure the server and result set are setup for the requested entry

  Refresh contents of this Tree and his branches from the current
  Tree status in the database
  One can call this function in case the Tree on its file is being
  updated by another process

 Reset the internal query