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1// @(#)root/tree:$Id$
2// Author: Rene Brun 14/01/2001
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 *************************************************************************/
12#ifndef ROOT_TLeafElement
13#define ROOT_TLeafElement
17// //
18// TLeafElement //
19// //
20// A TLeaf for a general object derived from TObject. //
21// //
24#include <atomic>
26#include "TDataType.h"
27#include "TLeaf.h"
28#include "TBranchElement.h"
30class TMethodCall;
32class TLeafElement : public TLeaf {
35 char *fAbsAddress; ///<! Absolute leaf Address
36 Int_t fID; ///< element serial number in fInfo
37 Int_t fType; ///< leaf type
38 mutable std::atomic<DeserializeType> fDeserializeTypeCache{ DeserializeType::kInvalid }; ///<! Cache of the type of deserialization.
39 mutable std::atomic<EDataType> fDataTypeCache{EDataType::kOther_t}; ///<! Cache of the EDataType of deserialization.
42 Int_t GetOffsetHeaderSize() const override {return 1;}
46 TLeafElement(TBranch *parent, const char *name, Int_t id, Int_t type);
47 ~TLeafElement() override;
50 virtual Int_t *GenerateOffsetArrayBase(Int_t /*base*/, Int_t /*events*/) { return nullptr; }
51 DeserializeType GetDeserializeType() const override;
53 Int_t GetID() const { return fID; }
54 TString GetFullName() const override;
55 Int_t GetLen() const override { return ((TBranchElement*)fBranch)->GetNdata()*fLen; }
56 TMethodCall *GetMethodCall(const char *name);
57 Int_t GetMaximum() const override { return ((TBranchElement*)fBranch)->GetMaximum(); }
58 Int_t GetNdata() const override { return ((TBranchElement*)fBranch)->GetNdata()*fLen; }
59 const char *GetTypeName() const override { return ((TBranchElement*)fBranch)->GetTypeName(); }
61 Double_t GetValue(Int_t i=0) const override { return ((TBranchElement*)fBranch)->GetValue(i, fLen, kFALSE);}
62 Long64_t GetValueLong64(Int_t i = 0) const override { return ((TBranchElement*)fBranch)->GetTypedValue<Long64_t>(i, fLen, kFALSE); }
63 LongDouble_t GetValueLongDouble(Int_t i = 0) const override { return ((TBranchElement*)fBranch)->GetTypedValue<LongDouble_t>(i, fLen, kFALSE); }
64 template<typename T> T GetTypedValueSubArray(Int_t i=0, Int_t j=0) const {return ((TBranchElement*)fBranch)->GetTypedValue<T>(i, j, kTRUE);}
66 bool ReadBasketFast(TBuffer&, Long64_t) override;
68 void *GetValuePointer() const override { return ((TBranchElement*)fBranch)->GetValuePointer(); }
69 Bool_t IncludeRange(TLeaf *) override;
70 Bool_t IsOnTerminalBranch() const override;
71 void PrintValue(Int_t i=0) const override {((TBranchElement*)fBranch)->PrintValue(i);}
72 void SetLeafCount(TLeaf *leaf) override { fLeafCount = leaf; }
74 ClassDefOverride(TLeafElement,1); //A TLeaf for a general object derived from TObject.
bool Bool_t
Definition RtypesCore.h:63
int Int_t
Definition RtypesCore.h:45
constexpr Bool_t kFALSE
Definition RtypesCore.h:101
long double LongDouble_t
Definition RtypesCore.h:61
long long Long64_t
Definition RtypesCore.h:80
constexpr Bool_t kTRUE
Definition RtypesCore.h:100
#define ClassDefOverride(name, id)
Definition Rtypes.h:341
@ kOther_t
Definition TDataType.h:32
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char Pixmap_t Pixmap_t PictureAttributes_t attr const char char ret_data h unsigned char height h Atom_t Int_t ULong_t ULong_t unsigned char prop_list Atom_t Atom_t Atom_t Time_t type
char name[80]
Definition TGX11.cxx:110
A Branch for the case of an object.
A TTree is a list of TBranches.
Definition TBranch.h:93
Buffer base class used for serializing objects.
Definition TBuffer.h:43
A TLeaf for the general case when using the branches created via a TStreamerInfo (i....
void PrintValue(Int_t i=0) const override
T GetTypedValueSubArray(Int_t i=0, Int_t j=0) const
Int_t GetID() const
Bool_t IsOnTerminalBranch() const override
Return true if this leaf is does not have any sub-branch/leaf.
TMethodCall * GetMethodCall(const char *name)
Returns pointer to method corresponding to name name is a string with the general form "method(list o...
Bool_t IncludeRange(TLeaf *) override
Copy/set fMinimum and fMaximum to include/be wide than those of the parameter.
char * fAbsAddress
! Absolute leaf Address
std::atomic< DeserializeType > fDeserializeTypeCache
! Cache of the type of deserialization.
Int_t GetMaximum() const override
const char * GetTypeName() const override
~TLeafElement() override
Default destructor for a LeafObject.
LongDouble_t GetValueLongDouble(Int_t i=0) const override
bool ReadBasketFast(TBuffer &, Long64_t) override
Deserialize N events from an input buffer.
Int_t fType
leaf type
void * GetValuePointer() const override
Int_t GetLen() const override
Return the number of effective elements of this leaf, for the current entry.
std::atomic< EDataType > fDataTypeCache
! Cache of the EDataType of deserialization.
virtual Int_t * GenerateOffsetArrayBase(Int_t, Int_t)
Double_t GetValue(Int_t i=0) const override
Int_t GetNdata() const override
Int_t fID
element serial number in fInfo
void SetLeafCount(TLeaf *leaf) override
Set the leaf count of this leaf.
Int_t GetOffsetHeaderSize() const override
TString GetFullName() const override
Return the full name (including the parent's branch names) of the leaf.
Bool_t CanGenerateOffsetArray() override
DeserializeType GetDeserializeType() const override
Determine if this TLeafElement supports bulk IO.
Long64_t GetValueLong64(Int_t i=0) const override
Default constructor for LeafObject.
A TLeaf describes individual elements of a TBranch See TBranch structure in TTree.
Definition TLeaf.h:57
Int_t fLenType
Number of bytes for this data type.
Definition TLeaf.h:73
Int_t fLen
Number of fixed length elements in the leaf's data.
Definition TLeaf.h:72
Definition TLeaf.h:99
TBranch * fBranch
! Pointer to supporting branch (we do not own the branch)
Definition TLeaf.h:78
TLeaf * fLeafCount
Pointer to Leaf count if variable length (we do not own the counter)
Definition TLeaf.h:77
Method or function calling interface.
Definition TMethodCall.h:37
Basic string class.
Definition TString.h:139