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TChainElement.h
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1// @(#)root/tree:$Id$
2// Author: Rene Brun 11/02/97
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#ifndef ROOT_TChainElement
12#define ROOT_TChainElement
13
14
15//////////////////////////////////////////////////////////////////////////
16// //
17// TChainElement //
18// //
19// Describes a component of a TChain. //
20// //
21//////////////////////////////////////////////////////////////////////////
22
23
24#include "TNamed.h"
25
26class TBranch;
27
28class TChainElement : public TNamed {
29
30 // TChainElement status bits
33 };
34
35protected:
36 Long64_t fEntries; ///< Number of entries in the tree of this chain element
37 Int_t fNPackets; ///< Number of packets
38 Int_t fPacketSize; ///< Number of events in one packet for parallel root
39 Int_t fStatus; ///< branch status when used as a branch
40 void *fBaddress; ///<! branch address when used as a branch
41 TString fBaddressClassName; ///<! Name of the class pointed to by fBaddress
42 UInt_t fBaddressType; ///<! Type of the value pointed to by fBaddress
43 Bool_t fBaddressIsPtr : 1; ///<! True if the address is a pointer to an address
44 Bool_t fDecomposedObj : 1; ///<! True if the address needs the branch in MakeClass/DecomposedObj mode.
45 Bool_t fCheckedType : 1; ///<! True if the branch type and the address type have been checked.
46 char *fPackets; ///<! Packet descriptor string
47 TBranch **fBranchPtr; ///<! Address of user branch pointer (to updated upon loading a file)
48 Int_t fLoadResult; ///<! Return value of TChain::LoadTree(); 0 means success
49
50public:
52 TChainElement(const char *title, const char *filename);
53 virtual ~TChainElement();
54 virtual void CreatePackets();
55 virtual void *GetBaddress() const {return fBaddress;}
56 virtual const char *GetBaddressClassName() const { return fBaddressClassName; }
57 virtual Bool_t GetBaddressIsPtr() const { return fBaddressIsPtr; }
58 virtual UInt_t GetBaddressType() const { return fBaddressType; }
59 virtual TBranch **GetBranchPtr() const { return fBranchPtr; }
60 virtual Long64_t GetEntries() const {return fEntries;}
61 Int_t GetLoadResult() const { return fLoadResult; }
64 virtual char *GetPackets() const {return fPackets;}
65 virtual Int_t GetPacketSize() const {return fPacketSize;}
66 virtual Int_t GetStatus() const {return fStatus;}
68 virtual void ls(Option_t *option="") const;
69 virtual void SetBaddress(void *add) {fBaddress = add;}
70 virtual void SetBaddressClassName(const char* clname) { fBaddressClassName = clname; }
71 virtual void SetBaddressIsPtr(Bool_t isptr) { fBaddressIsPtr = isptr; }
73 virtual void SetBranchPtr(TBranch **ptr) { fBranchPtr = ptr; }
76 void SetLoadResult(Int_t result) { fLoadResult = result; }
77 virtual void SetLookedUp(Bool_t y = kTRUE);
79 virtual void SetPacketSize(Int_t size = 100);
80 virtual void SetStatus(Int_t status) {fStatus = status;}
81
82 ClassDef(TChainElement,2); //A chain element
83};
84
85#endif
86
int Int_t
Definition: RtypesCore.h:43
unsigned int UInt_t
Definition: RtypesCore.h:44
bool Bool_t
Definition: RtypesCore.h:61
long long Long64_t
Definition: RtypesCore.h:71
const Bool_t kTRUE
Definition: RtypesCore.h:89
const char Option_t
Definition: RtypesCore.h:64
#define ClassDef(name, id)
Definition: Rtypes.h:322
#define BIT(n)
Definition: Rtypes.h:83
int type
Definition: TGX11.cxx:120
A TTree is a list of TBranches.
Definition: TBranch.h:91
A TChainElement describes a component of a TChain.
Definition: TChainElement.h:28
virtual ~TChainElement()
Default destructor for a chain element.
void SetLoadResult(Int_t result)
Definition: TChainElement.h:76
Long64_t fEntries
Number of entries in the tree of this chain element.
Definition: TChainElement.h:36
void SetCheckedType(Bool_t m)
Definition: TChainElement.h:74
virtual void SetBaddressClassName(const char *clname)
Definition: TChainElement.h:70
virtual Long64_t GetEntries() const
Definition: TChainElement.h:60
virtual char * GetPackets() const
Definition: TChainElement.h:64
void SetDecomposedObj(Bool_t m)
Definition: TChainElement.h:75
Int_t fPacketSize
Number of events in one packet for parallel root.
Definition: TChainElement.h:38
virtual void SetLookedUp(Bool_t y=kTRUE)
Set/Reset the looked-up bit.
TBranch ** fBranchPtr
! Address of user branch pointer (to updated upon loading a file)
Definition: TChainElement.h:47
virtual void SetPacketSize(Int_t size=100)
Set number of entries per packet for parallel root.
Int_t fNPackets
Number of packets.
Definition: TChainElement.h:37
char * fPackets
! Packet descriptor string
Definition: TChainElement.h:46
virtual void SetStatus(Int_t status)
Definition: TChainElement.h:80
Int_t fLoadResult
! Return value of TChain::LoadTree(); 0 means success
Definition: TChainElement.h:48
Bool_t fCheckedType
! True if the branch type and the address type have been checked.
Definition: TChainElement.h:45
virtual UInt_t GetBaddressType() const
Definition: TChainElement.h:58
virtual void SetNumberEntries(Long64_t n)
Definition: TChainElement.h:78
virtual TBranch ** GetBranchPtr() const
Definition: TChainElement.h:59
Bool_t fDecomposedObj
! True if the address needs the branch in MakeClass/DecomposedObj mode.
Definition: TChainElement.h:44
Int_t fStatus
branch status when used as a branch
Definition: TChainElement.h:39
virtual Int_t GetPacketSize() const
Definition: TChainElement.h:65
virtual void SetBaddress(void *add)
Definition: TChainElement.h:69
TChainElement()
Default constructor for a chain element.
virtual void CreatePackets()
Initialize the packet descriptor string.
virtual void SetBranchPtr(TBranch **ptr)
Definition: TChainElement.h:73
Int_t GetLoadResult() const
Definition: TChainElement.h:61
virtual Int_t GetStatus() const
Definition: TChainElement.h:66
UInt_t fBaddressType
! Type of the value pointed to by fBaddress
Definition: TChainElement.h:42
Bool_t GetCheckedType() const
Definition: TChainElement.h:62
TString fBaddressClassName
! Name of the class pointed to by fBaddress
Definition: TChainElement.h:41
Bool_t GetDecomposedObj() const
Definition: TChainElement.h:63
virtual Bool_t HasBeenLookedUp()
Definition: TChainElement.h:67
virtual Bool_t GetBaddressIsPtr() const
Definition: TChainElement.h:57
virtual void * GetBaddress() const
Definition: TChainElement.h:55
virtual void ls(Option_t *option="") const
List files in the chain.
virtual void SetBaddressType(UInt_t type)
Definition: TChainElement.h:72
void * fBaddress
! branch address when used as a branch
Definition: TChainElement.h:40
Bool_t fBaddressIsPtr
! True if the address is a pointer to an address
Definition: TChainElement.h:43
virtual const char * GetBaddressClassName() const
Definition: TChainElement.h:56
virtual void SetBaddressIsPtr(Bool_t isptr)
Definition: TChainElement.h:71
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
Definition: TObject.h:187
EStatusBits
Definition: TObject.h:57
Basic string class.
Definition: TString.h:131
Double_t y[n]
Definition: legend1.C:17
const Int_t n
Definition: legend1.C:16
auto * m
Definition: textangle.C:8