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TTreeRow.h
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1 // @(#)root/tree:$Id$
2 // Author: Fons Rademakers 30/11/99
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #ifndef ROOT_TTreeRow
13 #define ROOT_TTreeRow
14 
15 
16 //////////////////////////////////////////////////////////////////////////
17 // //
18 // TTreeRow //
19 // //
20 // Class defining interface to a row of a TTree query result. //
21 // Objects of this class are created by TTreeResult methods. //
22 // //
23 // Related classes are TTreeResult. //
24 // //
25 //////////////////////////////////////////////////////////////////////////
26 
27 #include "TSQLRow.h"
28 
29 class TTreeRow : public TSQLRow {
30 
31 friend class TTreeResult;
32 friend class TTreePlayer;
33 
34 private:
35  Int_t fColumnCount; ///< number of columns in row
36  Int_t *fFields; ///<[fColumnCount] index in fRow of the end of each field
37  char *fRow; ///< string with all the fColumnCount fields
38  TTreeRow *fOriginal; ///<! pointer to original row
39 
40  TTreeRow(TSQLRow *original);
42 
43  TTreeRow(const TTreeRow&); // Not implemented.
44  TTreeRow &operator=(const TTreeRow&); // Not implemented.
45 
46 public:
47  TTreeRow();
48  TTreeRow(Int_t nfields);
49  TTreeRow(Int_t nfields, const Int_t *fields, const char *row);
50  virtual ~TTreeRow();
51 
52  void Close(Option_t *option="");
54  const char *GetField(Int_t field);
55  void SetRow(const Int_t *fields, const char *row);
56 
57  ClassDef(TTreeRow,1) // One row of an TTree query result
58 };
59 
60 #endif
bool
TTreeRow::SetRow
void SetRow(const Int_t *fields, const char *row)
The field and row information.
Definition: TTreeRow.cxx:157
TTreeRow::GetFieldLength
ULong_t GetFieldLength(Int_t field)
Get length in bytes of specified field.
Definition: TTreeRow.cxx:127
TTreeRow::GetField
const char * GetField(Int_t field)
Get specified field from row (0 <= field < GetFieldCount()).
Definition: TTreeRow.cxx:142
TTreeRow::~TTreeRow
virtual ~TTreeRow()
Destroy row object.
Definition: TTreeRow.cxx:89
TTreePlayer
Definition: TTreePlayer.h:37
Option_t
const typedef char Option_t
Definition: RtypesCore.h:66
TTreeRow::operator=
TTreeRow & operator=(const TTreeRow &)
TTreeRow::TTreeRow
TTreeRow()
Single row of a query result.
Definition: TTreeRow.cxx:29
TSQLRow
Definition: TSQLRow.h:30
TSQLRow.h
TTreeRow::fFields
Int_t * fFields
[fColumnCount] index in fRow of the end of each field
Definition: TTreeRow.h:42
TTreeRow::IsValid
Bool_t IsValid(Int_t field)
Check if row is open and field index within range.
Definition: TTreeRow.cxx:111
ULong_t
unsigned long ULong_t
Definition: RtypesCore.h:55
TTreeRow::Close
void Close(Option_t *option="")
Close row.
Definition: TTreeRow.cxx:98
TTreeRow::fOriginal
TTreeRow * fOriginal
! pointer to original row
Definition: TTreeRow.h:44
ClassDef
#define ClassDef(name, id)
Definition: Rtypes.h:325
TTreeRow
Definition: TTreeRow.h:29
TTreeRow::fColumnCount
Int_t fColumnCount
number of columns in row
Definition: TTreeRow.h:41
TTreeResult
Definition: TTreeResult.h:34
TTreeRow::fRow
char * fRow
string with all the fColumnCount fields
Definition: TTreeRow.h:43
int