library: libSQL
#include "TSQLObjectData.h"

TSQLObjectData

class description - header file - source file - inheritance tree (.pdf)

class TSQLObjectData : public TObject

Inheritance Chart:

TObject

TSQLObjectData


    protected:

           Bool_t ExtractBlobValues()
      const char* GetClassFieldName(Int_t n)
            Int_t GetNumClassFields()
           Bool_t ShiftBlobRow()

    public:

                      TSQLObjectData()
                      TSQLObjectData(TSQLClassInfo* sqlinfo, Long64_t objid, TSQLResult* classdata, TSQLRow* classrow, TSQLResult* blobdata, TSQLStatement* blobstmt)
                      TSQLObjectData(const TSQLObjectData&)
              virtual ~TSQLObjectData()
                 void AddUnpack(const char* tname, const char* value)
                 void AddUnpackInt(const char* tname, Int_t value)
       static TClass* Class()
          const char* GetBlobPrefixName() const
          const char* GetBlobTypeName() const
       TSQLClassInfo* GetInfo() const
          const char* GetLocatedField() const
             Long64_t GetObjId() const
          const char* GetValue() const
      virtual TClass* IsA() const
               Bool_t IsBlobData() const
               Bool_t LocateColumn(const char* colname, Bool_t isblob = kFALSE)
               Bool_t PrepareForRawData()
                 void ShiftToNextValue()
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)
               Bool_t VerifyDataType(const char* tname, Bool_t errormsg = kTRUE)

Data Members


    protected:

      TSQLClassInfo* fInfo            !
            Long64_t fObjId           !
              Bool_t fOwner           !
         TSQLResult* fClassData       !
         TSQLResult* fBlobData        !
      TSQLStatement* fBlobStmt        !
               Int_t fLocatedColumn   !
               Int_t fLocatedBlob     !
            TSQLRow* fClassRow        !
            TSQLRow* fBlobRow         !
         const char* fLocatedField    !
         const char* fLocatedValue    !
              Bool_t fCurrentBlob     !
         const char* fBlobPrefixName  ! name prefix in current blob row
         const char* fBlobTypeName    ! name type (without prefix) in current blob row
          TObjArray* fUnpack          !

Class Description

________________________________________________________________________

 TSQLObjectData is used in TBufferSQL2 class in reading procedure.
 It contains data, request from database table for one specifc
 object for one specific class. For instance, when data for
 class TH1 required, requests will be done to
 TH1_ver4 and TH1_raw4 tables and result of these requests
 will be kept in single TSQLObjectData instance.

________________________________________________________________________

TSQLObjectData()

 default contrsuctor

TSQLObjectData(TSQLClassInfo* sqlinfo, Long64_t objid, TSQLResult* classdata, TSQLRow* classrow, TSQLResult* blobdata, TSQLStatement* blobstmt)

 normal contrsuctor,

~TSQLObjectData()

 destructor of TSQLObjectData object

Int_t GetNumClassFields()

 return number of columns in class table result

const char* GetClassFieldName(Int_t n)

 get name of class table column

Bool_t LocateColumn(const char* colname, Bool_t isblob)

 locate column of that name in results

Bool_t ShiftBlobRow()

 shift cursor to next blob value

Bool_t ExtractBlobValues()

 extract from curent blob row value and names identifiers

void AddUnpack(const char* tname, const char* value)

 add emulated data
 this used to place version or TObject raw data, read from normal tables

void AddUnpackInt(const char* tname, Int_t value)

 emulate integer value in raw data

void ShiftToNextValue()

 shift to next column or next row in blob data

Bool_t VerifyDataType(const char* tname, Bool_t errormsg)

 checks if data type corresponds to that stored in raw table

Bool_t PrepareForRawData()

 prepare to read data from raw table

Long64_t GetObjId()

TSQLObjectData()

TSQLClassInfo* GetInfo()

Bool_t IsBlobData()

const char* GetValue()

const char* GetLocatedField()

const char* GetBlobPrefixName()

const char* GetBlobTypeName()

Author: Sergey Linev 20/11/2005
Last update: root/sql:$Name: $:$Id: TSQLObjectData.cxx,v 1.8 2006/06/22 08:21:22 brun Exp $
Copyright (C) 1995-2005, Rene Brun and Fons Rademakers. *

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