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FairDbRowStream.h
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1 #ifndef FAIRDBROWSTREAM_H
2 #define FAIRDBROWSTREAM_H
3 
4 #include <string>
5 
6 #include "FairDbFieldType.h"
7 
8 class FairDbTableMetaData;
9 
10 class FairDbRowStream
11 {
12 
13  public:
14 
15 // Constructors and destructors.
16  FairDbRowStream(const FairDbTableMetaData* metaData);
17  virtual ~FairDbRowStream();
18 
19  virtual
20  const FairDbFieldType& ColFieldType(UInt_t col) const;
21  virtual string ColName(UInt_t col) const;
22  virtual
23  const FairDbFieldType& CurColFieldType() const;
24  virtual string CurColName() const;
25  virtual UInt_t CurColNum() const { return fCurCol;}
26  Bool_t HasRowCounter() const { return fHasRowCounter; }
27  virtual UInt_t NumCols() const;
28  virtual string TableName() const;
29  virtual string TableNameTc() const;
30  virtual const FairDbTableMetaData*
31  MetaData() const { return fMetaData; }
32  // State changing member functions
33 
34  virtual void DecrementCurCol() {
35  fCurCol = (fCurCol <= 1) ? 1 : fCurCol -1;
36  }
37  // Allow IncrementCurCol to step off end (to catch attempt to read
38  // too much data)
39  virtual void IncrementCurCol() { ++fCurCol; }
40 
41  protected:
42 
43  virtual void ClearCurCol() { fCurCol = 1; }
44 
45  private:
46 
47  UShort_t fCurCol;
48  Bool_t fHasRowCounter;
49  const FairDbTableMetaData* fMetaData;
50 
51  FairDbRowStream(const FairDbRowStream&);
52  FairDbRowStream operator=(const FairDbRowStream&);
53 
54  ClassDef(FairDbRowStream,0) // I/O of a table row.
55 
56 };
57 
58 
59 #endif // FAIRDBROWSTREAM_H