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0001 // @(#)root/tree:$Id$ 0002 // Author: Fons Rademakers 30/11/99 0003 0004 /************************************************************************* 0005 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * 0006 * All rights reserved. * 0007 * * 0008 * For the licensing terms see $ROOTSYS/LICENSE. * 0009 * For the list of contributors see $ROOTSYS/README/CREDITS. * 0010 *************************************************************************/ 0011 0012 #ifndef ROOT_TTreeRow 0013 #define ROOT_TTreeRow 0014 0015 0016 ////////////////////////////////////////////////////////////////////////// 0017 // // 0018 // TTreeRow // 0019 // // 0020 // Class defining interface to a row of a TTree query result. // 0021 // Objects of this class are created by TTreeResult methods. // 0022 // // 0023 // Related classes are TTreeResult. // 0024 // // 0025 ////////////////////////////////////////////////////////////////////////// 0026 0027 #include "TSQLRow.h" 0028 0029 class TTreeRow : public TSQLRow { 0030 0031 friend class TTreeResult; 0032 friend class TTreePlayer; 0033 0034 private: 0035 Int_t fColumnCount; ///< number of columns in row 0036 Int_t *fFields; ///<[fColumnCount] index in fRow of the end of each field 0037 char *fRow; ///< string with all the fColumnCount fields 0038 TTreeRow *fOriginal; ///<! pointer to original row 0039 0040 TTreeRow(TSQLRow *original); 0041 bool IsValid(Int_t field); 0042 0043 TTreeRow(const TTreeRow&) = delete; 0044 TTreeRow &operator=(const TTreeRow&) = delete; 0045 0046 public: 0047 TTreeRow(); 0048 TTreeRow(Int_t nfields); 0049 TTreeRow(Int_t nfields, const Int_t *fields, const char *row); 0050 ~TTreeRow() override; 0051 0052 void Close(Option_t *option="") override; 0053 ULong_t GetFieldLength(Int_t field) override; 0054 const char *GetField(Int_t field) override; 0055 void SetRow(const Int_t *fields, const char *row); 0056 0057 ClassDefOverride(TTreeRow,1) // One row of a TTree query result 0058 }; 0059 0060 #endif
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