Class for serializing object to and from JavaScript Object Notation (JSON) format.

It creates such object representation, which can be directly used in JavaScript ROOT (JSROOT) for drawing.

TBufferJSON implements TBuffer interface, therefore most of ROOT and user classes can be converted into JSON. There are certain limitations for classes with custom streamers, which should be equipped specially for this purposes (see TCanvas::Streamer() as example).

To perform conversion into JSON, one should use TBufferJSON::ToJSON method:

TH1 *h1 = new TH1I("h1", "title", 100, 0, 10);
h1->FillRandom("gaus",10000);
TString json = TBufferJSON::ToJSON(h1);

To reconstruct object from the JSON string, one should do:

TH1 *hnew = nullptr;
TBufferJSON::FromJSON(hnew, json);
if (hnew) hnew->Draw("hist");

JSON data does not include stored class version, therefore schema evolution (reading of older class versions) is not supported. JSON should not be used as persistent storage for object data - only for live applications.

Definition at line 27 of file TBufferJSON.h.

Public Member Functions
	TBufferJSON (TBuffer::EMode mode=TBuffer::kWrite)
	Creates buffer object to serialize data into json. More...

virtual	~TBufferJSON ()
	destroy buffer More...

virtual void	ClassBegin (const TClass *, Version_t=-1)
	Should be called in the beginning of custom class streamer. More...

virtual void	ClassEnd (const TClass *)
	Should be called at the end of custom streamer See TBufferJSON::ClassBegin for more details. More...

virtual void	ClassMember (const char name, const char typeName=nullptr, Int_t arrsize1=-1, Int_t arrsize2=-1)
	Method indicates name and typename of class member, which should be now streamed in custom streamer Following combinations are supported: More...

virtual void	DecrementLevel (TVirtualStreamerInfo *)
	Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and decrease level in json structure. More...

virtual TVirtualStreamerInfo *	GetInfo ()
	Return current streamer info element. More...

virtual void	IncrementLevel (TVirtualStreamerInfo *)
	Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and indent new level in json structure. More...

virtual Int_t	ReadArray (Bool_t *&b)
	Read array of Bool_t from buffer. More...

virtual Int_t	ReadArray (Char_t *&c)
	Read array of Char_t from buffer. More...

virtual Int_t	ReadArray (UChar_t *&c)
	Read array of UChar_t from buffer. More...

virtual Int_t	ReadArray (Short_t *&h)
	Read array of Short_t from buffer. More...

virtual Int_t	ReadArray (UShort_t *&h)
	Read array of UShort_t from buffer. More...

virtual Int_t	ReadArray (Int_t *&i)
	Read array of Int_t from buffer. More...

virtual Int_t	ReadArray (UInt_t *&i)
	Read array of UInt_t from buffer. More...

virtual Int_t	ReadArray (Long_t *&l)
	Read array of Long_t from buffer. More...

virtual Int_t	ReadArray (ULong_t *&l)
	Read array of ULong_t from buffer. More...

virtual Int_t	ReadArray (Long64_t *&l)
	Read array of Long64_t from buffer. More...

virtual Int_t	ReadArray (ULong64_t *&l)
	Read array of ULong64_t from buffer. More...

virtual Int_t	ReadArray (Float_t *&f)
	Read array of Float_t from buffer. More...

virtual Int_t	ReadArray (Double_t *&d)
	Read array of Double_t from buffer. More...

virtual void	ReadBaseClass (void start, TStreamerBase elem)
	Read data of base class. More...

virtual void	ReadBool (Bool_t &b)
	Reads Bool_t value from buffer. More...

virtual void	ReadChar (Char_t &c)
	Reads Char_t value from buffer. More...

virtual void	ReadCharP (Char_t *c)
	Reads array of characters from buffer. More...

virtual void	ReadCharStar (char *&s)
	Reads a char* string. More...

virtual TClass *	ReadClass (const TClass cl=nullptr, UInt_t objTag=nullptr)
	suppressed function of TBuffer More...

virtual void	ReadDouble (Double_t &d)
	Reads Double_t value from buffer. More...

virtual void	ReadFastArray (Bool_t *b, Int_t n)
	read array of Bool_t from buffer More...

virtual void	ReadFastArray (Char_t *c, Int_t n)
	read array of Char_t from buffer More...

virtual void	ReadFastArray (UChar_t *c, Int_t n)
	read array of UChar_t from buffer More...

virtual void	ReadFastArray (Short_t *h, Int_t n)
	read array of Short_t from buffer More...

virtual void	ReadFastArray (UShort_t *h, Int_t n)
	read array of UShort_t from buffer More...

virtual void	ReadFastArray (Int_t *i, Int_t n)
	read array of Int_t from buffer More...

virtual void	ReadFastArray (UInt_t *i, Int_t n)
	read array of UInt_t from buffer More...

virtual void	ReadFastArray (Long_t *l, Int_t n)
	read array of Long_t from buffer More...

virtual void	ReadFastArray (ULong_t *l, Int_t n)
	read array of ULong_t from buffer More...

virtual void	ReadFastArray (Long64_t *l, Int_t n)
	read array of Long64_t from buffer More...

virtual void	ReadFastArray (ULong64_t *l, Int_t n)
	read array of ULong64_t from buffer More...

virtual void	ReadFastArray (Float_t *f, Int_t n)
	read array of Float_t from buffer More...

virtual void	ReadFastArray (Double_t *d, Int_t n)
	read array of Double_t from buffer More...

virtual void	ReadFastArray (void start, const TClass cl, Int_t n=1, TMemberStreamer s=nullptr, const TClass onFileClass=nullptr)
	Read an array of 'n' objects from the I/O buffer. More...

virtual void	ReadFastArray (void *startp, const TClass cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer s=nullptr, const TClass onFileClass=nullptr)
	redefined here to avoid warning message from gcc More...

virtual void	ReadFastArrayString (Char_t *c, Int_t n)
	read array of Char_t from buffer More...

virtual void	ReadFloat (Float_t &f)
	Reads Float_t value from buffer. More...

virtual void	ReadInt (Int_t &i)
	Reads Int_t value from buffer. More...

virtual void	ReadLong (Long_t &l)
	Reads Long_t value from buffer. More...

virtual void	ReadLong64 (Long64_t &l)
	Reads Long64_t value from buffer. More...

virtual void *	ReadObjectAny (const TClass *clCast)
	Read object from buffer. Only used from TBuffer. More...

virtual void	ReadShort (Short_t &s)
	Reads Short_t value from buffer. More...

virtual Int_t	ReadStaticArray (Bool_t *b)
	Read array of Bool_t from buffer. More...

virtual Int_t	ReadStaticArray (Char_t *c)
	Read array of Char_t from buffer. More...

virtual Int_t	ReadStaticArray (UChar_t *c)
	Read array of UChar_t from buffer. More...

virtual Int_t	ReadStaticArray (Short_t *h)
	Read array of Short_t from buffer. More...

virtual Int_t	ReadStaticArray (UShort_t *h)
	Read array of UShort_t from buffer. More...

virtual Int_t	ReadStaticArray (Int_t *i)
	Read array of Int_t from buffer. More...

virtual Int_t	ReadStaticArray (UInt_t *i)
	Read array of UInt_t from buffer. More...

virtual Int_t	ReadStaticArray (Long_t *l)
	Read array of Long_t from buffer. More...

virtual Int_t	ReadStaticArray (ULong_t *l)
	Read array of ULong_t from buffer. More...

virtual Int_t	ReadStaticArray (Long64_t *l)
	Read array of Long64_t from buffer. More...

virtual Int_t	ReadStaticArray (ULong64_t *l)
	Read array of ULong64_t from buffer. More...

virtual Int_t	ReadStaticArray (Float_t *f)
	Read array of Float_t from buffer. More...

virtual Int_t	ReadStaticArray (Double_t *d)
	Read array of Double_t from buffer. More...

virtual void	ReadStdString (std::string *s)
	Reads a std::string. More...

virtual void	ReadTString (TString &s)
	Reads a TString. More...

virtual void	ReadUChar (UChar_t &c)
	Reads UChar_t value from buffer. More...

virtual void	ReadUInt (UInt_t &i)
	Reads UInt_t value from buffer. More...

virtual void	ReadULong (ULong_t &l)
	Reads ULong_t value from buffer. More...

virtual void	ReadULong64 (ULong64_t &l)
	Reads ULong64_t value from buffer. More...

virtual void	ReadUShort (UShort_t &s)
	Reads UShort_t value from buffer. More...

virtual Version_t	ReadVersion (UInt_t start=nullptr, UInt_t bcnt=nullptr, const TClass *cl=nullptr)
	read version value from buffer More...

void	SetCompact (int level)

virtual void	SetStreamerElementNumber (TStreamerElement *elem, Int_t comp_type)
	Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and add/verify next element of json structure This calls allows separate data, correspondent to one class member, from another. More...

virtual void	SkipObjectAny ()
	Skip any kind of object from buffer. More...

virtual void	StreamObject (void obj, const TClass cl, const TClass *onFileClass=nullptr)
	stream object to/from buffer More...

virtual void	WriteArray (const Bool_t *b, Int_t n)
	Write array of Bool_t to buffer. More...

virtual void	WriteArray (const Char_t *c, Int_t n)
	Write array of Char_t to buffer. More...

virtual void	WriteArray (const UChar_t *c, Int_t n)
	Write array of UChar_t to buffer. More...

virtual void	WriteArray (const Short_t *h, Int_t n)
	Write array of Short_t to buffer. More...

virtual void	WriteArray (const UShort_t *h, Int_t n)
	Write array of UShort_t to buffer. More...

virtual void	WriteArray (const Int_t *i, Int_t n)
	Write array of Int_ to buffer. More...

virtual void	WriteArray (const UInt_t *i, Int_t n)
	Write array of UInt_t to buffer. More...

virtual void	WriteArray (const Long_t *l, Int_t n)
	Write array of Long_t to buffer. More...

virtual void	WriteArray (const ULong_t *l, Int_t n)
	Write array of ULong_t to buffer. More...

virtual void	WriteArray (const Long64_t *l, Int_t n)
	Write array of Long64_t to buffer. More...

virtual void	WriteArray (const ULong64_t *l, Int_t n)
	Write array of ULong64_t to buffer. More...

virtual void	WriteArray (const Float_t *f, Int_t n)
	Write array of Float_t to buffer. More...

virtual void	WriteArray (const Double_t *d, Int_t n)
	Write array of Double_t to buffer. More...

virtual void	WriteBool (Bool_t b)
	Writes Bool_t value to buffer. More...

virtual void	WriteChar (Char_t c)
	Writes Char_t value to buffer. More...

virtual void	WriteCharP (const Char_t *c)
	Writes array of characters to buffer. More...

virtual void	WriteCharStar (char *s)
	Writes a char*. More...

virtual void	WriteClass (const TClass *cl)
	suppressed function of TBuffer More...

virtual void	WriteDouble (Double_t d)
	Writes Double_t value to buffer. More...

virtual void	WriteFastArray (const Bool_t *b, Int_t n)
	Write array of Bool_t to buffer. More...

virtual void	WriteFastArray (const Char_t *c, Int_t n)
	Write array of Char_t to buffer. More...

virtual void	WriteFastArray (const UChar_t *c, Int_t n)
	Write array of UChar_t to buffer. More...

virtual void	WriteFastArray (const Short_t *h, Int_t n)
	Write array of Short_t to buffer. More...

virtual void	WriteFastArray (const UShort_t *h, Int_t n)
	Write array of UShort_t to buffer. More...

virtual void	WriteFastArray (const Int_t *i, Int_t n)
	Write array of Int_t to buffer. More...

virtual void	WriteFastArray (const UInt_t *i, Int_t n)
	Write array of UInt_t to buffer. More...

virtual void	WriteFastArray (const Long_t *l, Int_t n)
	Write array of Long_t to buffer. More...

virtual void	WriteFastArray (const ULong_t *l, Int_t n)
	Write array of ULong_t to buffer. More...

virtual void	WriteFastArray (const Long64_t *l, Int_t n)
	Write array of Long64_t to buffer. More...

virtual void	WriteFastArray (const ULong64_t *l, Int_t n)
	Write array of ULong64_t to buffer. More...

virtual void	WriteFastArray (const Float_t *f, Int_t n)
	Write array of Float_t to buffer. More...

virtual void	WriteFastArray (const Double_t *d, Int_t n)
	Write array of Double_t to buffer. More...

virtual void	WriteFastArray (void start, const TClass cl, Int_t n=1, TMemberStreamer *s=nullptr)
	Recall TBuffer function to avoid gcc warning message. More...

virtual Int_t	WriteFastArray (void *startp, const TClass cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=nullptr)
	Recall TBuffer function to avoid gcc warning message. More...

virtual void	WriteFastArrayString (const Char_t *c, Int_t n)
	Write array of Char_t to buffer. More...

virtual void	WriteFloat (Float_t f)
	Writes Float_t value to buffer. More...

virtual void	WriteInt (Int_t i)
	Writes Int_t value to buffer. More...

virtual void	WriteLong (Long_t l)
	Writes Long_t value to buffer. More...

virtual void	WriteLong64 (Long64_t l)
	Writes Long64_t value to buffer. More...

virtual void	WriteShort (Short_t s)
	Writes Short_t value to buffer. More...

virtual void	WriteStdString (const std::string *s)
	Writes a std::string. More...

virtual void	WriteTString (const TString &s)
	Writes a TString. More...

virtual void	WriteUChar (UChar_t c)
	Writes UChar_t value to buffer. More...

virtual void	WriteUInt (UInt_t i)
	Writes UInt_t value to buffer. More...

virtual void	WriteULong (ULong_t l)
	Writes ULong_t value to buffer. More...

virtual void	WriteULong64 (ULong64_t l)
	Writes ULong64_t value to buffer. More...

virtual void	WriteUShort (UShort_t s)
	Writes UShort_t value to buffer. More...

virtual UInt_t	WriteVersion (const TClass *cl, Bool_t useBcnt=kFALSE)
	Ignored in TBufferJSON. More...

Public Member Functions inherited from TBufferText
virtual	~TBufferText ()
	destructor More...

virtual Int_t	ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void *object)
	Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...

virtual Int_t	ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void start_collection, void end_collection)
	Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...

virtual Int_t	ApplySequenceVecPtr (const TStreamerInfoActions::TActionSequence &sequence, void start_collection, void end_collection)
	Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...

virtual Int_t	CheckByteCount (UInt_t, UInt_t, const TClass *)

virtual Int_t	CheckByteCount (UInt_t, UInt_t, const char *)

virtual Int_t	ReadArrayDouble32 (Double_t &d, TStreamerElement ele=nullptr)
	Read array of Double32_t from buffer. More...

virtual Int_t	ReadArrayFloat16 (Float_t &f, TStreamerElement ele=nullptr)
	Read array of Float16_t from buffer. More...

virtual Int_t	ReadBuf (void *, Int_t)

virtual Int_t	ReadClassBuffer (const TClass , void , const TClass *=nullptr)
	Deserialize information from a buffer into an object. More...

virtual Int_t	ReadClassBuffer (const TClass , void , Int_t, UInt_t, UInt_t, const TClass *=nullptr)
	Deserialize information from a buffer into an object. More...

virtual Int_t	ReadClassEmulated (const TClass , void , const TClass *=nullptr)

virtual void	ReadDouble32 (Double_t d, TStreamerElement ele=nullptr)
	read a Double32_t from the buffer More...

virtual void	ReadFastArrayDouble32 (Double_t d, Int_t n, TStreamerElement ele=nullptr)
	read array of Double32_t from buffer More...

virtual void	ReadFastArrayFloat16 (Float_t f, Int_t n, TStreamerElement ele=nullptr)
	read array of Float16_t from buffer More...

virtual void	ReadFastArrayWithFactor (Float_t *ptr, Int_t n, Double_t factor, Double_t minvalue)
	read array of Float16_t from buffer More...

virtual void	ReadFastArrayWithFactor (Double_t *ptr, Int_t n, Double_t factor, Double_t minvalue)
	read array of Double32_t from buffer More...

virtual void	ReadFastArrayWithNbits (Float_t *ptr, Int_t n, Int_t nbits)
	read array of Float16_t from buffer More...

virtual void	ReadFastArrayWithNbits (Double_t *ptr, Int_t n, Int_t nbits)
	read array of Double32_t from buffer More...

virtual void	ReadFloat16 (Float_t f, TStreamerElement ele=nullptr)
	read a Float16_t from the buffer More...

virtual TObject *	ReadObject (const TClass *)

virtual Int_t	ReadStaticArrayDouble32 (Double_t d, TStreamerElement ele=nullptr)
	Read array of Double32_t from buffer. More...

virtual Int_t	ReadStaticArrayFloat16 (Float_t f, TStreamerElement ele=nullptr)
	Read array of Float16_t from buffer. More...

virtual char *	ReadString (char *, Int_t)

virtual Version_t	ReadVersionForMemberWise (const TClass *=nullptr)

virtual Version_t	ReadVersionNoCheckSum (UInt_t , UInt_t )

virtual void	ReadWithFactor (Float_t *ptr, Double_t factor, Double_t minvalue)
	Read a Double32_t from the buffer when the factor and minimun value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...

virtual void	ReadWithFactor (Double_t *ptr, Double_t factor, Double_t minvalue)
	Read a Double32_t from the buffer when the factor and minimun value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...

virtual void	ReadWithNbits (Float_t *ptr, Int_t nbits)
	Read a Float16_t from the buffer when the number of bits is specified (explicitly or not) see comments about Float16_t encoding at TBufferFile::WriteFloat16(). More...

virtual void	ReadWithNbits (Double_t *ptr, Int_t nbits)
	Read a Double32_t from the buffer when the number of bits is specified (explicitly or not) see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...

virtual void	SetByteCount (UInt_t, Bool_t=kFALSE)

virtual void	SkipVersion (const TClass *cl=nullptr)
	Skip class version from I/O buffer. More...

virtual void	StreamObject (void obj, const std::type_info &typeinfo, const TClass onFileClass=nullptr)
	stream object to/from buffer More...

virtual void	StreamObject (void obj, const char className, const TClass *onFileClass=nullptr)
	stream object to/from buffer More...

virtual void	StreamObject (TObject *obj)

virtual void	WriteArrayDouble32 (const Double_t d, Int_t n, TStreamerElement ele=nullptr)
	Write array of Double32_t to buffer. More...

virtual void	WriteArrayFloat16 (const Float_t f, Int_t n, TStreamerElement ele=nullptr)
	Write array of Float16_t to buffer. More...

virtual void	WriteBaseClass (void start, TStreamerBase elem)
	Write data of base class. More...

virtual void	WriteBuf (const void *, Int_t)

virtual Int_t	WriteClassBuffer (const TClass cl, void pointer)
	Function called by the Streamer functions to serialize object at p to buffer b. More...

virtual void	WriteDouble32 (Double_t d, TStreamerElement ele=nullptr)
	write a Double32_t to the buffer More...

virtual void	WriteFastArrayDouble32 (const Double_t d, Int_t n, TStreamerElement ele=nullptr)
	Write array of Double32_t to buffer. More...

virtual void	WriteFastArrayFloat16 (const Float_t d, Int_t n, TStreamerElement ele=nullptr)
	Write array of Float16_t to buffer. More...

virtual void	WriteFloat16 (Float_t f, TStreamerElement ele=nullptr)
	write a Float16_t to the buffer More...

virtual void	WriteString (const char *)

virtual UInt_t	WriteVersionMemberWise (const TClass *, Bool_t=kFALSE)

Public Member Functions inherited from TBufferIO
virtual	~TBufferIO ()
	destructor More...

virtual Bool_t	CheckObject (const TObject *obj)
	Check if the specified object is already in the buffer. More...

virtual Bool_t	CheckObject (const void obj, const TClass ptrClass)
	Check if the specified object of the specified class is already in the buffer. More...

virtual void	ForceWriteInfo (TVirtualStreamerInfo *info, Bool_t force)
	force writing the TStreamerInfo to the file More...

virtual void	ForceWriteInfoClones (TClonesArray *a)
	Make sure TStreamerInfo is not optimized, otherwise it will not be possible to support schema evolution in read mode. More...

virtual Int_t	GetBufferDisplacement () const

virtual TProcessID *	GetLastProcessID (TRefTable *reftable) const
	Return the last TProcessID in the file. More...

virtual Int_t	GetMapCount () const

virtual void	GetMappedObject (UInt_t tag, void &ptr, TClass &ClassPtr) const
	Retrieve the object stored in the buffer's object map at 'tag' Set ptr and ClassPtr respectively to the address of the object and a pointer to its TClass. More...

virtual UShort_t	GetPidOffset () const

virtual UInt_t	GetTRefExecId ()
	Return the exec id stored in the current TStreamerInfo element. More...

virtual Int_t	GetVersionOwner () const
	Return the version number of the owner file. More...

virtual void	InitMap ()
	Create the fMap container and initialize them with the null object. More...

virtual void	MapObject (const TObject *obj, UInt_t offset=1)
	Add object to the fMap container. More...

virtual void	MapObject (const void obj, const TClass cl, UInt_t offset=1)
	Add object to the fMap container. More...

virtual Int_t	ReadClones (TClonesArray *a, Int_t nobjects, Version_t objvers)
	Interface to TStreamerInfo::ReadBufferClones. More...

virtual TProcessID *	ReadProcessID (UShort_t pidf)
	The TProcessID with number pidf is read from file. More...

virtual void	Reset ()
	Reset buffer object. Resets map and buffer offset. More...

virtual void	ResetMap ()
	Delete existing fMap and reset map counter. More...

virtual void	SetBufferDisplacement ()

virtual void	SetBufferDisplacement (Int_t skipped)

virtual void	SetPidOffset (UShort_t offset)
	This offset is used when a key (or basket) is transfered from one file to the other. More...

virtual void	SetReadParam (Int_t mapsize)
	Set the initial size of the map used to store object and class references during reading. More...

virtual void	SetWriteParam (Int_t mapsize)
	Set the initial size of the hashtable used to store object and class references during writing. More...

virtual void	TagStreamerInfo (TVirtualStreamerInfo *info)
	Mark the classindex of the current file as using this TStreamerInfo. More...

virtual Int_t	WriteClones (TClonesArray *a, Int_t nobjects)
	Interface to TStreamerInfo::WriteBufferClones. More...

virtual void	WriteObject (const TObject *obj, Bool_t cacheReuse=kTRUE)
	Write object to I/O buffer. More...

virtual Int_t	WriteObjectAny (const void obj, const TClass ptrClass, Bool_t cacheReuse=kTRUE)
	Write object to I/O buffer. More...

virtual UShort_t	WriteProcessID (TProcessID *pid)
	Check if the ProcessID pid is already in the file. More...

Public Member Functions inherited from TBuffer
	TBuffer (EMode mode)
	Create an I/O buffer object. More...

	TBuffer (EMode mode, Int_t bufsiz)
	Create an I/O buffer object. More...

	TBuffer (EMode mode, Int_t bufsiz, void *buf, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=0)
	Create an I/O buffer object. More...

virtual	~TBuffer ()
	Delete an I/O buffer object. More...

void	AutoExpand (Int_t size_needed)
	Automatically calculate a new size and expand the buffer to fit at least size_needed. More...

char *	Buffer () const

Int_t	BufferSize () const

void	DetachBuffer ()

void	Expand (Int_t newsize, Bool_t copy=kTRUE)
	Expand (or shrink) the I/O buffer to newsize bytes. More...

Int_t	GetBufferVersion () const

TObject *	GetParent () const
	Return pointer to parent of this buffer. More...

ReAllocCharFun_t	GetReAllocFunc () const
	Return the reallocation method currently used. More...

Bool_t	IsReading () const

Bool_t	IsWriting () const

Int_t	Length () const

virtual TVirtualArray *	PeekDataCache () const
	Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members. More...

virtual TVirtualArray *	PopDataCache ()
	Pop and Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members. More...

virtual void	PushDataCache (TVirtualArray *)
	Push a new data cache area onto the list of area to be used for temporarily store 'missing' data members. More...

virtual void	ReadStdString (std::string &s)

void	SetBuffer (void *buf, UInt_t bufsiz=0, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=0)
	Sets a new buffer in an existing TBuffer object. More...

void	SetBufferOffset (Int_t offset=0)

void	SetParent (TObject *parent)
	Set parent owning this buffer. More...

void	SetReadMode ()
	Set buffer in read mode. More...

void	SetReAllocFunc (ReAllocCharFun_t reallocfunc=0)
	Set which memory reallocation method to use. More...

void	SetWriteMode ()
	Set buffer in write mode. More...

template<class T >
Int_t	WriteObject (const T *objptr, Bool_t cacheReuse=kTRUE)

virtual void	WriteStdString (std::string &s)

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...

	TObject (const TObject &object)
	TObject copy ctor. More...

virtual	~TObject ()
	TObject destructor. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

ULong_t	CheckedHash ()
	Checked and record whether for this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method. More...

virtual void	Copy (TObject &object) const
	Copy this to obj. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. More...

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

void	SetBit (UInt_t f)

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

Static Public Member Functions
static TObject *	ConvertFromJSON (const char *str)
	Read TObject-based class from JSON, produced by ConvertToJSON() method. More...

static void *	ConvertFromJSONAny (const char str, TClass *cl=nullptr)
	Read object from JSON, produced by ConvertToJSON() method. More...

static TString	ConvertToJSON (const TObject obj, Int_t compact=0, const char member_name=nullptr)
	Converts object, inherited from TObject class, to JSON string Lower digit of compact parameter define formatting rules. More...

static TString	ConvertToJSON (const void obj, const TClass cl, Int_t compact=0, const char *member_name=nullptr)
	Converts any type of object to JSON string One should provide pointer on object and its class name Lower digit of compact parameter define formatting rules. More...

static TString	ConvertToJSON (const void obj, TDataMember member, Int_t compact=0, Int_t arraylen=-1)
	Converts selected data member into json Parameter ptr specifies address in memory, where data member is located compact parameter defines compactness of produced JSON (from 0 to 3) arraylen (when specified) is array length for this data member, //[fN] case. More...

static Int_t	ExportToFile (const char filename, const TObject obj, const char *option=nullptr)
	Convert object into JSON and store in text file Returns size of the produce file Used in TObject::SaveAs() More...

static Int_t	ExportToFile (const char filename, const void obj, const TClass cl, const char option=nullptr)
	Convert object into JSON and store in text file Returns size of the produce file. More...

template<class T >
static Bool_t	FromJSON (T &obj, const char json)

template<class T >
static TString	ToJSON (const T obj, Int_t compact=0, const char member_name=nullptr)

Static Public Member Functions inherited from TBufferText
static void	CompactFloatString (char *buf, unsigned len)
	method compress float string, excluding exp and/or move float point More...

static const char *	ConvertDouble (Double_t v, char *buf, unsigned len, Bool_t not_optimize=kFALSE)
	convert float to string with configured format More...

static const char *	ConvertFloat (Float_t v, char *buf, unsigned len, Bool_t not_optimize=kFALSE)
	convert float to string with configured format More...

static const char *	GetDoubleFormat ()
	return current printf format for double members, default "%.14e" More...

static const char *	GetFloatFormat ()
	return current printf format for float members, default "%e" More...

static void	SetDoubleFormat (const char *fmt="%.14e")
	set printf format for double members, default "%.14e" use it after SetFloatFormat, which also overwrites format for doubles More...

static void	SetFloatFormat (const char *fmt="%e")
	set printf format for float/double members, default "%e" to change format only for doubles, use SetDoubleFormat More...

Static Public Member Functions inherited from TBufferIO
static Int_t	GetGlobalReadParam ()
	Get default read map size. More...

static Int_t	GetGlobalWriteParam ()
	Get default write map size. More...

static void	SetGlobalReadParam (Int_t mapsize)
	Set the initial size of the map used to store object and class references during reading. More...

static void	SetGlobalWriteParam (Int_t mapsize)
	Set the initial size of the map used to store object and class references during reading. More...

Static Public Member Functions inherited from TBuffer
static TClass *	GetClass (const std::type_info &typeinfo)
	Forward to TROOT::GetClass(). More...

static TClass *	GetClass (const char *className)
	Forward to TROOT::GetClass(). More...

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Member Functions
void	AppendOutput (const char line0, const char line1=nullptr)
	Append two string to the output JSON, normally separate by line break. More...

void	JsonDisablePostprocessing ()
	disable post-processing of the code More...

void	JsonPushValue ()
	If value exists, push in the current stack for post-processing. More...

template<typename T >
R__ALWAYS_INLINE Int_t	JsonReadArray (T *value)
	Read static array from JSON - not used. More...

template<typename T >
R__ALWAYS_INLINE void	JsonReadBasic (T &value)
	Template function to read basic value from JSON. More...

void	JsonReadCollection (TCollection obj, const TClass objClass)
	read content of ROOT collection More...

template<typename T >
R__ALWAYS_INLINE void	JsonReadFastArray (T *arr, Int_t arrsize, bool asstring=false)
	Template method to read array from the JSON. More...

void *	JsonReadObject (void obj, const TClass objClass=nullptr, TClass **readClass=nullptr)
	Read object from current JSON node. More...

void	JsonReadTObjectMembers (TObject obj, void node=nullptr)

Int_t	JsonSpecialClass (const TClass *cl) const
	return non-zero value when class has special handling in JSON it is TCollection (-130), TArray (100), TString (110), std::string (120) and STL containers (1..6) More...

void	JsonStartElement (const TStreamerElement elem, const TClass base_class=nullptr)
	Start new class member in JSON structures. More...

template<typename T >
R__ALWAYS_INLINE void	JsonWriteArrayCompress (const T vname, Int_t arrsize, const char typname)

void	JsonWriteBasic (Char_t value)
	converts Char_t to string and add to json value buffer More...

void	JsonWriteBasic (Short_t value)
	converts Short_t to string and add to json value buffer More...

void	JsonWriteBasic (Int_t value)
	converts Int_t to string and add to json value buffer More...

void	JsonWriteBasic (Long_t value)
	converts Long_t to string and add to json value buffer More...

void	JsonWriteBasic (Long64_t value)
	converts Long64_t to string and add to json value buffer More...

void	JsonWriteBasic (Float_t value)
	converts Float_t to string and add to json value buffer More...

void	JsonWriteBasic (Double_t value)
	converts Double_t to string and add to json value buffer More...

void	JsonWriteBasic (Bool_t value)
	converts Bool_t to string and add to json value buffer More...

void	JsonWriteBasic (UChar_t value)
	converts UChar_t to string and add to json value buffer More...

void	JsonWriteBasic (UShort_t value)
	converts UShort_t to string and add to json value buffer More...

void	JsonWriteBasic (UInt_t value)
	converts UInt_t to string and add to json value buffer More...

void	JsonWriteBasic (ULong_t value)
	converts ULong_t to string and add to json value buffer More...

void	JsonWriteBasic (ULong64_t value)
	converts ULong64_t to string and add to json value buffer More...

void	JsonWriteCollection (TCollection obj, const TClass objClass)
	store content of ROOT collection More...

void	JsonWriteConstChar (const char value, Int_t len=-1, const char =nullptr)
	writes string value, processing all kind of special characters More...

template<typename T >
R__ALWAYS_INLINE void	JsonWriteFastArray (const T arr, Int_t arrsize, const char typname, void(TBufferJSON::method)(const T , Int_t, const char *))
	Template method to write array of arbitrary dimensions Different methods can be used for store last array dimension - either JsonWriteArrayCompress<T>() or JsonWriteConstChar() More...

TString	JsonWriteMember (const void ptr, TDataMember member, TClass *memberClass, Int_t arraylen)
	Convert single data member to JSON structures Returns string with converted member. More...

void	JsonWriteObject (const void obj, const TClass objClass, Bool_t check_map=kTRUE)
	Write object to buffer If object was written before, only pointer will be stored If check_map==kFALSE, object will be stored in any case and pointer will not be registered in the map. More...

void	PerformPostProcessing (TJSONStackObj stack, const TClass obj_cl=nullptr)
	Function is converts TObject and TString structures to more compact representation. More...

TJSONStackObj *	PopStack ()
	remove one level from stack More...

TJSONStackObj *	PushStack (Int_t inclevel=0, void *readnode=nullptr)
	add new level to the structures stack More...

TJSONStackObj *	Stack ()

void	WorkWithClass (TStreamerInfo info, const TClass cl=nullptr)
	Prepares buffer to stream data of specified class. More...

void	WorkWithElement (TStreamerElement *elem, Int_t)
	This is call-back from streamer which indicates that class member will be streamed Name of element used in JSON. More...

virtual void	WriteObjectClass (const void actualObjStart, const TClass actualClass, Bool_t cacheReuse)
	Write object to buffer. Only used from TBuffer. More...

Protected Member Functions inherited from TBufferText
	TBufferText ()
	Default constructor. More...

	TBufferText (TBuffer::EMode mode, TObject *parent=nullptr)
	Normal constructor. More...

Protected Member Functions inherited from TBufferIO
	TBufferIO ()=default

	TBufferIO (TBuffer::EMode mode)
	constructor More...

	TBufferIO (TBuffer::EMode mode, Int_t bufsiz)
	constructor More...

	TBufferIO (TBuffer::EMode mode, Int_t bufsiz, void *buf, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=nullptr)
	constructor More...

virtual void	CheckCount (UInt_t)

Long64_t	GetObjectTag (const void *obj)
	Returns tag for specified object from objects map (if exists) Returns 0 if object not included into objects map. More...

Protected Member Functions inherited from TBuffer
	TBuffer ()

	TBuffer (const TBuffer &)

void	operator= (const TBuffer &)

Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

Int_t	Write (const char *name, Int_t opt, Int_t bufs)
	Write this object to the current directory. More...

Int_t	Write (const char *name, Int_t opt, Int_t bufs) const
	Write this object to the current directory. More...

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

void	MakeZombie ()

Static Protected Member Functions
static void *	ConvertFromJSONChecked (const char str, const TClass expectedClass)
	Read objects from JSON, one can reuse existing object. More...

Static Protected Member Functions inherited from TBufferIO
static R__ALWAYS_INLINE ULong_t	Void_Hash (const void *ptr)
	Return hash value for provided object. More...

Protected Attributes
TString	fArraySepar
	! depending from compression level, ", " or "," More...

Int_t	fCompact
	! 0 - no any compression, 1 - no spaces in the begin, 2 - no new lines, 3 - no spaces at all More...

unsigned	fJsonrCnt
	! counter for all objects, used for referencing More...

TString	fNumericLocale
	! stored value of setlocale(LC_NUMERIC), which should be recovered at the end More...

TString	fOutBuffer
	! main output buffer for json code More...

TString *	fOutput
	! current output buffer for json code More...

TString	fSemicolon
	! depending from compression level, " : " or ":" More...

std::deque< TJSONStackObj * >	fStack
	! hierarchy of currently streamed element More...

TString	fValue
	! buffer for current value More...

Protected Attributes inherited from TBufferIO
TExMap *	fClassMap {nullptr}
	Map containing object,class pairs for reading. More...

Int_t	fDisplacement {0}
	Value to be added to the map offsets. More...

TExMap *	fMap {nullptr}
	Map containing object,offset pairs for reading/writing. More...

Int_t	fMapCount {0}
	Number of objects or classes in map. More...

Int_t	fMapSize {0}
	Default size of map. More...

UShort_t	fPidOffset {0}
	Offset to be added to the pid index in this key/buffer. More...

Protected Attributes inherited from TBuffer
char *	fBufCur

char *	fBuffer

char *	fBufMax

Int_t	fBufSize

CacheList_t	fCacheStack
	Realloc function to be used when extending the buffer. More...

Bool_t	fMode

TObject *	fParent

ReAllocCharFun_t	fReAllocFunc

Int_t	fVersion

Additional Inherited Members
Public Types inherited from TBufferIO
enum	{ kMapSize = 503 }

enum	EStatusBits { kNotDecompressed = BIT(15), kTextBasedStreaming = BIT(18), kUser1 = BIT(21), kUser2 = BIT(22), kUser3 = BIT(23) }

Public Types inherited from TBuffer
enum	{ kInitialSize = 1024, kMinimalSize = 128 }

enum	EMode { kRead = 0, kWrite = 1 }

enum	EStatusBits { kIsOwner = BIT(16), kCannotHandleMemberWiseStreaming = BIT(17) }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000, kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

Protected Types inherited from TBufferIO
enum	{ kNullTag = 0 }

Protected Types inherited from TBuffer
typedef std::vector< TVirtualArray * >	CacheList_t

Static Protected Attributes inherited from TBufferText
static const char *	fgDoubleFmt = "%.14e"
	! printf argument for doubles, either "%f" or "%e" or "%10f" and so on More...

static const char *	fgFloatFmt = "%e"
	! printf argument for floats, either "%f" or "%e" or "%10f" and so on More...

Static Protected Attributes inherited from TBufferIO
static Int_t	fgMapSize = kMapSize
	Default map size for all TBuffer objects. More...

#include <TBufferJSON.h>

Inheritance diagram for TBufferJSON:

[legend]

Constructor & Destructor Documentation

◆ TBufferJSON()

TBufferJSON::TBufferJSON ( TBuffer::EMode mode = TBuffer::kWrite )

Creates buffer object to serialize data into json.

Definition at line 368 of file TBufferJSON.cxx.

◆ ~TBufferJSON()

TBufferJSON::~TBufferJSON ( )

virtual

destroy buffer

Definition at line 389 of file TBufferJSON.cxx.

Member Function Documentation

◆ AppendOutput()

void TBufferJSON::AppendOutput	(	const char *	line0,
		const char *	line1 = `nullptr`
	)

protected

Append two string to the output JSON, normally separate by line break.

Definition at line 947 of file TBufferJSON.cxx.

◆ ClassBegin()

void TBufferJSON::ClassBegin	(	const TClass *	cl,
		Version_t	= `-1`
	)

virtual

Should be called in the beginning of custom class streamer.

Informs buffer data about class which will be streamed now.

ClassBegin(), ClassEnd() and ClassMember() should be used in custom class streamers to specify which kind of data are now streamed. Such information is used to correctly convert class data to JSON. Without that functions calls classes with custom streamers cannot be used with TBufferJSON

Implements TBuffer.

Definition at line 1840 of file TBufferJSON.cxx.

◆ ClassEnd()

void TBufferJSON::ClassEnd ( const TClass * )

virtual

Should be called at the end of custom streamer See TBufferJSON::ClassBegin for more details.

Implements TBuffer.

Definition at line 1849 of file TBufferJSON.cxx.

◆ ClassMember()

void TBufferJSON::ClassMember	(	const char *	name,
		const char *	typeName = `nullptr`,
		Int_t	arrsize1 = `-1`,
		Int_t	arrsize2 = `-1`
	)

virtual

Method indicates name and typename of class member, which should be now streamed in custom streamer Following combinations are supported:

name = "ClassName", typeName = 0 or typename==ClassName This is a case, when data of parent class "ClassName" should be streamed. For instance, if class directly inherited from TObject, custom streamer should include following code:
b.ClassMember("TObject");
TObject::Streamer(b);
Basic data type
b.ClassMember("fInt","Int_t");
b >> fInt;
Array of basic data types
b.ClassMember("fArr","Int_t", 5);
b.ReadFastArray(fArr, 5);
Object as data member
b.ClassMember("fName","TString");
fName.Streamer(b);
Pointer on object as data member
b.ClassMember("fObj","TObject*");
b.StreamObject(fObj);

arrsize1 and arrsize2 arguments (when specified) indicate first and second dimension of array. Can be used for array of basic types. See ClassBegin() method for more details.

Implements TBuffer.

Definition at line 1891 of file TBufferJSON.cxx.

◆ ConvertFromJSON()

TObject * TBufferJSON::ConvertFromJSON ( const char * str )

static

Read TObject-based class from JSON, produced by ConvertToJSON() method.

If object does not inherit from TObject class, return 0.

Definition at line 717 of file TBufferJSON.cxx.

◆ ConvertFromJSONAny()

void * TBufferJSON::ConvertFromJSONAny	(	const char *	str,
		TClass **	cl = `nullptr`
	)

static

Read object from JSON, produced by ConvertToJSON() method.

In class pointer (if specified) read class is returned One must specify expected object class, if it is TArray or STL container

Definition at line 740 of file TBufferJSON.cxx.

◆ ConvertFromJSONChecked()

void * TBufferJSON::ConvertFromJSONChecked	(	const char *	str,
		const TClass *	expectedClass
	)

staticprotected

Read objects from JSON, one can reuse existing object.

Definition at line 770 of file TBufferJSON.cxx.

◆ ConvertToJSON() [1/3]

TString TBufferJSON::ConvertToJSON	(	const TObject *	obj,
		Int_t	compact = `0`,
		const char *	member_name = `nullptr`
	)

static

Converts object, inherited from TObject class, to JSON string Lower digit of compact parameter define formatting rules.

0 - no any compression, human-readable form
1 - exclude spaces in the begin
2 - remove newlines
3 - exclude spaces as much as possible

Second digit of compact parameter defines algorithm for arrays compression

0 - no compression, standard JSON array
1 - exclude leading, trailing zeros, required JSROOT v5
2 - check values repetition and empty gaps, required JSROOT v5

Maximal compression achieved when compact parameter equal to 23 When member_name specified, converts only this data member

Definition at line 414 of file TBufferJSON.cxx.

◆ ConvertToJSON() [2/3]

TString TBufferJSON::ConvertToJSON	(	const void *	obj,
		const TClass *	cl,
		Int_t	compact = `0`,
		const char *	member_name = `nullptr`
	)

static

Converts any type of object to JSON string One should provide pointer on object and its class name Lower digit of compact parameter define formatting rules.

0 - no any compression, human-readable form
1 - exclude spaces in the begin
2 - remove newlines
3 - exclude spaces as much as possible

Second digit of compact parameter defines algorithm for arrays compression

0 - no compression, standard JSON array
1 - exclude leading, trailing zeros, required JSROOT v5
2 - check values repetition and empty gaps, required JSROOT v5

Maximal compression achieved when compact parameter equal to 23 When member_name specified, converts only this data member

Definition at line 467 of file TBufferJSON.cxx.

◆ ConvertToJSON() [3/3]

TString TBufferJSON::ConvertToJSON	(	const void *	obj,
		TDataMember *	member,
		Int_t	compact = `0`,
		Int_t	arraylen = `-1`
	)

static

Converts selected data member into json Parameter ptr specifies address in memory, where data member is located compact parameter defines compactness of produced JSON (from 0 to 3) arraylen (when specified) is array length for this data member, //[fN] case.

Definition at line 530 of file TBufferJSON.cxx.

◆ DecrementLevel()

void TBufferJSON::DecrementLevel ( TVirtualStreamerInfo * info )

virtual

Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and decrease level in json structure.

Implements TBuffer.

Definition at line 1707 of file TBufferJSON.cxx.

◆ ExportToFile() [1/2]

Int_t TBufferJSON::ExportToFile	(	const char *	filename,
		const TObject *	obj,
		const char *	option = `nullptr`
	)

static

Convert object into JSON and store in text file Returns size of the produce file Used in TObject::SaveAs()

Definition at line 557 of file TBufferJSON.cxx.

◆ ExportToFile() [2/2]

Int_t TBufferJSON::ExportToFile	(	const char *	filename,
		const void *	obj,
		const TClass *	cl,
		const char *	option = `nullptr`
	)

static

Convert object into JSON and store in text file Returns size of the produce file.

Definition at line 637 of file TBufferJSON.cxx.

◆ FromJSON()

template<class T >

static Bool_t TBufferJSON::FromJSON	(	T *&	obj,
		const char *	json
	)

inlinestatic

Definition at line 53 of file TBufferJSON.h.

◆ GetInfo()

TVirtualStreamerInfo * TBufferJSON::GetInfo ( )

virtual

Return current streamer info element.

Implements TBuffer.

Definition at line 1738 of file TBufferJSON.cxx.

◆ IncrementLevel()

void TBufferJSON::IncrementLevel ( TVirtualStreamerInfo * info )

virtual

Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and indent new level in json structure.

This call indicates, that TStreamerInfo functions starts streaming object data of correspondent class

Implements TBuffer.

Definition at line 1655 of file TBufferJSON.cxx.

◆ JsonDisablePostprocessing()

void TBufferJSON::JsonDisablePostprocessing ( )

protected

disable post-processing of the code

Definition at line 1027 of file TBufferJSON.cxx.

◆ JsonPushValue()

void TBufferJSON::JsonPushValue ( )

protected

If value exists, push in the current stack for post-processing.

Definition at line 2183 of file TBufferJSON.cxx.

◆ JsonReadArray()

template<typename T >

R__ALWAYS_INLINE Int_t TBufferJSON::JsonReadArray ( T * value )

protected

Read static array from JSON - not used.

Definition at line 2297 of file TBufferJSON.cxx.

◆ JsonReadBasic()

template<typename T >

R__ALWAYS_INLINE void TBufferJSON::JsonReadBasic ( T & value )

protected

Template function to read basic value from JSON.

Definition at line 3150 of file TBufferJSON.cxx.

◆ JsonReadCollection()

void TBufferJSON::JsonReadCollection	(	TCollection *	obj,
		const TClass *	objClass
	)

protected

read content of ROOT collection

Definition at line 1359 of file TBufferJSON.cxx.

◆ JsonReadFastArray()

template<typename T >

R__ALWAYS_INLINE void TBufferJSON::JsonReadFastArray	(	T *	arr,
		Int_t	arrsize,
		bool	asstring = `false`
	)

protected

Template method to read array from the JSON.

Definition at line 2411 of file TBufferJSON.cxx.

◆ JsonReadObject()

void * TBufferJSON::JsonReadObject	(	void *	obj,
		const TClass *	objClass = `nullptr`,
		TClass **	readClass = `nullptr`
	)

protected

Read object from current JSON node.

Definition at line 1451 of file TBufferJSON.cxx.

◆ JsonReadTObjectMembers()

void TBufferJSON::JsonReadTObjectMembers	(	TObject *	obj,
		void *	node = `nullptr`
	)

protected

Definition at line 1632 of file TBufferJSON.cxx.

◆ JsonSpecialClass()

Int_t TBufferJSON::JsonSpecialClass ( const TClass * cl ) const

protected

return non-zero value when class has special handling in JSON it is TCollection (-130), TArray (100), TString (110), std::string (120) and STL containers (1..6)

Definition at line 1036 of file TBufferJSON.cxx.

◆ JsonStartElement()

void TBufferJSON::JsonStartElement	(	const TStreamerElement *	elem,
		const TClass *	base_class = `nullptr`
	)

protected

Start new class member in JSON structures.

Definition at line 969 of file TBufferJSON.cxx.

◆ JsonWriteArrayCompress()

template<typename T >

R__ALWAYS_INLINE void TBufferJSON::JsonWriteArrayCompress	(	const T *	vname,
		Int_t	arrsize,
		const char *	typname
	)

protected

Definition at line 2674 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [1/13]

void TBufferJSON::JsonWriteBasic ( Char_t value )

protected

converts Char_t to string and add to json value buffer

Definition at line 3483 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [2/13]

void TBufferJSON::JsonWriteBasic ( Short_t value )

protected

converts Short_t to string and add to json value buffer

Definition at line 3493 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [3/13]

void TBufferJSON::JsonWriteBasic ( Int_t value )

protected

converts Int_t to string and add to json value buffer

Definition at line 3503 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [4/13]

void TBufferJSON::JsonWriteBasic ( Long_t value )

protected

converts Long_t to string and add to json value buffer

Definition at line 3513 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [5/13]

void TBufferJSON::JsonWriteBasic ( Long64_t value )

protected

converts Long64_t to string and add to json value buffer

Definition at line 3523 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [6/13]

void TBufferJSON::JsonWriteBasic ( Float_t value )

protected

converts Float_t to string and add to json value buffer

Definition at line 3531 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [7/13]

void TBufferJSON::JsonWriteBasic ( Double_t value )

protected

converts Double_t to string and add to json value buffer

Definition at line 3544 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [8/13]

void TBufferJSON::JsonWriteBasic ( Bool_t value )

protected

converts Bool_t to string and add to json value buffer

Definition at line 3557 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [9/13]

void TBufferJSON::JsonWriteBasic ( UChar_t value )

protected

converts UChar_t to string and add to json value buffer

Definition at line 3565 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [10/13]

void TBufferJSON::JsonWriteBasic ( UShort_t value )

protected

converts UShort_t to string and add to json value buffer

Definition at line 3575 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [11/13]

void TBufferJSON::JsonWriteBasic ( UInt_t value )

protected

converts UInt_t to string and add to json value buffer

Definition at line 3585 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [12/13]

void TBufferJSON::JsonWriteBasic ( ULong_t value )

protected

converts ULong_t to string and add to json value buffer

Definition at line 3595 of file TBufferJSON.cxx.

◆ JsonWriteBasic() [13/13]

void TBufferJSON::JsonWriteBasic ( ULong64_t value )

protected

converts ULong64_t to string and add to json value buffer

Definition at line 3605 of file TBufferJSON.cxx.

◆ JsonWriteCollection()

void TBufferJSON::JsonWriteCollection	(	TCollection *	obj,
		const TClass *	objClass
	)

protected

store content of ROOT collection

Definition at line 1286 of file TBufferJSON.cxx.

◆ JsonWriteConstChar()

void TBufferJSON::JsonWriteConstChar	(	const char *	value,
		Int_t	len = `-1`,
		const char *	= `nullptr`
	)

protected

writes string value, processing all kind of special characters

Definition at line 3613 of file TBufferJSON.cxx.

◆ JsonWriteFastArray()

template<typename T >

R__ALWAYS_INLINE void TBufferJSON::JsonWriteFastArray	(	const T *	arr,
		Int_t	arrsize,
		const char *	typname,
		void(TBufferJSON::)(const T , Int_t, const char *)	method
	)

protected

Template method to write array of arbitrary dimensions Different methods can be used for store last array dimension - either JsonWriteArrayCompress<T>() or JsonWriteConstChar()

Definition at line 2877 of file TBufferJSON.cxx.

◆ JsonWriteMember()

TString TBufferJSON::JsonWriteMember	(	const void *	ptr,
		TDataMember *	member,
		TClass *	memberClass,
		Int_t	arraylen
	)

protected

Convert single data member to JSON structures Returns string with converted member.

Definition at line 800 of file TBufferJSON.cxx.

◆ JsonWriteObject()

void TBufferJSON::JsonWriteObject	(	const void *	obj,
		const TClass *	objClass,
		Bool_t	check_map = `kTRUE`
	)

protected

Write object to buffer If object was written before, only pointer will be stored If check_map==kFALSE, object will be stored in any case and pointer will not be registered in the map.

Definition at line 1074 of file TBufferJSON.cxx.

◆ PerformPostProcessing()

void TBufferJSON::PerformPostProcessing	(	TJSONStackObj *	stack,
		const TClass *	obj_cl = `nullptr`
	)

protected

Function is converts TObject and TString structures to more compact representation.

Definition at line 1987 of file TBufferJSON.cxx.

◆ PopStack()

TJSONStackObj * TBufferJSON::PopStack ( )

protected

remove one level from stack

Definition at line 934 of file TBufferJSON.cxx.

◆ PushStack()

TJSONStackObj * TBufferJSON::PushStack	(	Int_t	inclevel = `0`,
		void *	readnode = `nullptr`
	)

protected

add new level to the structures stack

Definition at line 920 of file TBufferJSON.cxx.

◆ ReadArray() [1/13]

Int_t TBufferJSON::ReadArray ( Bool_t *& b )

virtual

Read array of Bool_t from buffer.

Implements TBuffer.

Definition at line 2192 of file TBufferJSON.cxx.

◆ ReadArray() [2/13]

Int_t TBufferJSON::ReadArray ( Char_t *& c )

virtual

Read array of Char_t from buffer.

Implements TBuffer.

Definition at line 2200 of file TBufferJSON.cxx.

◆ ReadArray() [3/13]

Int_t TBufferJSON::ReadArray ( UChar_t *& c )

virtual

Read array of UChar_t from buffer.

Implements TBuffer.

Definition at line 2208 of file TBufferJSON.cxx.

◆ ReadArray() [4/13]

Int_t TBufferJSON::ReadArray ( Short_t *& h )

virtual

Read array of Short_t from buffer.

Implements TBuffer.

Definition at line 2216 of file TBufferJSON.cxx.

◆ ReadArray() [5/13]

Int_t TBufferJSON::ReadArray ( UShort_t *& h )

virtual

Read array of UShort_t from buffer.

Implements TBuffer.

Definition at line 2224 of file TBufferJSON.cxx.

◆ ReadArray() [6/13]

Int_t TBufferJSON::ReadArray ( Int_t *& i )

virtual

Read array of Int_t from buffer.

Implements TBuffer.

Definition at line 2232 of file TBufferJSON.cxx.

◆ ReadArray() [7/13]

Int_t TBufferJSON::ReadArray ( UInt_t *& i )

virtual

Read array of UInt_t from buffer.

Implements TBuffer.

Definition at line 2240 of file TBufferJSON.cxx.

◆ ReadArray() [8/13]

Int_t TBufferJSON::ReadArray ( Long_t *& l )

virtual

Read array of Long_t from buffer.

Implements TBuffer.

Definition at line 2248 of file TBufferJSON.cxx.

◆ ReadArray() [9/13]

Int_t TBufferJSON::ReadArray ( ULong_t *& l )

virtual

Read array of ULong_t from buffer.

Implements TBuffer.

Definition at line 2256 of file TBufferJSON.cxx.

◆ ReadArray() [10/13]

Int_t TBufferJSON::ReadArray ( Long64_t *& l )

virtual

Read array of Long64_t from buffer.

Implements TBuffer.

Definition at line 2264 of file TBufferJSON.cxx.

◆ ReadArray() [11/13]

Int_t TBufferJSON::ReadArray ( ULong64_t *& l )

virtual

Read array of ULong64_t from buffer.

Implements TBuffer.

Definition at line 2272 of file TBufferJSON.cxx.

◆ ReadArray() [12/13]

Int_t TBufferJSON::ReadArray ( Float_t *& f )

virtual

Read array of Float_t from buffer.

Implements TBuffer.

Definition at line 2280 of file TBufferJSON.cxx.

◆ ReadArray() [13/13]

Int_t TBufferJSON::ReadArray ( Double_t *& d )

virtual

Read array of Double_t from buffer.

Implements TBuffer.

Definition at line 2288 of file TBufferJSON.cxx.

◆ ReadBaseClass()

void TBufferJSON::ReadBaseClass	(	void *	start,
		TStreamerBase *	elem
	)

virtual

Read data of base class.

Reimplemented from TBufferText.

Definition at line 3654 of file TBufferJSON.cxx.

◆ ReadBool()

void TBufferJSON::ReadBool ( Bool_t & b )

virtual

Reads Bool_t value from buffer.

Implements TBuffer.

Definition at line 3158 of file TBufferJSON.cxx.

◆ ReadChar()

void TBufferJSON::ReadChar ( Char_t & c )

virtual

Reads Char_t value from buffer.

Implements TBuffer.

Definition at line 3166 of file TBufferJSON.cxx.

◆ ReadCharP()

void TBufferJSON::ReadCharP ( Char_t * c )

virtual

Reads array of characters from buffer.

Implements TBuffer.

Definition at line 3276 of file TBufferJSON.cxx.

◆ ReadCharStar()

void TBufferJSON::ReadCharStar ( char *& s )

virtual

Reads a char* string.

Implements TBuffer.

Definition at line 3302 of file TBufferJSON.cxx.

◆ ReadClass()

TClass * TBufferJSON::ReadClass	(	const TClass *	cl = `nullptr`,
		UInt_t *	objTag = `nullptr`
	)

virtual

suppressed function of TBuffer

Implements TBuffer.

Definition at line 2108 of file TBufferJSON.cxx.

◆ ReadDouble()

void TBufferJSON::ReadDouble ( Double_t & d )

virtual

Reads Double_t value from buffer.

Implements TBuffer.

Definition at line 3264 of file TBufferJSON.cxx.

◆ ReadFastArray() [1/15]

void TBufferJSON::ReadFastArray	(	Bool_t *	b,
		Int_t	n
	)

virtual

read array of Bool_t from buffer

Implements TBuffer.

Definition at line 2473 of file TBufferJSON.cxx.

◆ ReadFastArray() [2/15]

void TBufferJSON::ReadFastArray	(	Char_t *	c,
		Int_t	n
	)

virtual

read array of Char_t from buffer

Implements TBuffer.

Definition at line 2481 of file TBufferJSON.cxx.

◆ ReadFastArray() [3/15]

void TBufferJSON::ReadFastArray	(	UChar_t *	c,
		Int_t	n
	)

virtual

read array of UChar_t from buffer

Implements TBuffer.

Definition at line 2497 of file TBufferJSON.cxx.

◆ ReadFastArray() [4/15]

void TBufferJSON::ReadFastArray	(	Short_t *	h,
		Int_t	n
	)

virtual

read array of Short_t from buffer

Implements TBuffer.

Definition at line 2505 of file TBufferJSON.cxx.

◆ ReadFastArray() [5/15]

void TBufferJSON::ReadFastArray	(	UShort_t *	h,
		Int_t	n
	)

virtual

read array of UShort_t from buffer

Implements TBuffer.

Definition at line 2513 of file TBufferJSON.cxx.

◆ ReadFastArray() [6/15]

void TBufferJSON::ReadFastArray	(	Int_t *	i,
		Int_t	n
	)

virtual

read array of Int_t from buffer

Implements TBuffer.

Definition at line 2521 of file TBufferJSON.cxx.

◆ ReadFastArray() [7/15]

void TBufferJSON::ReadFastArray	(	UInt_t *	i,
		Int_t	n
	)

virtual

read array of UInt_t from buffer

Implements TBuffer.

Definition at line 2529 of file TBufferJSON.cxx.

◆ ReadFastArray() [8/15]

void TBufferJSON::ReadFastArray	(	Long_t *	l,
		Int_t	n
	)

virtual

read array of Long_t from buffer

Implements TBuffer.

Definition at line 2537 of file TBufferJSON.cxx.

◆ ReadFastArray() [9/15]

void TBufferJSON::ReadFastArray	(	ULong_t *	l,
		Int_t	n
	)

virtual

read array of ULong_t from buffer

Implements TBuffer.

Definition at line 2545 of file TBufferJSON.cxx.

◆ ReadFastArray() [10/15]

void TBufferJSON::ReadFastArray	(	Long64_t *	l,
		Int_t	n
	)

virtual

read array of Long64_t from buffer

Implements TBuffer.

Definition at line 2553 of file TBufferJSON.cxx.

◆ ReadFastArray() [11/15]

void TBufferJSON::ReadFastArray	(	ULong64_t *	l,
		Int_t	n
	)

virtual

read array of ULong64_t from buffer

Implements TBuffer.

Definition at line 2561 of file TBufferJSON.cxx.

◆ ReadFastArray() [12/15]

void TBufferJSON::ReadFastArray	(	Float_t *	f,
		Int_t	n
	)

virtual

read array of Float_t from buffer

Implements TBuffer.

Definition at line 2569 of file TBufferJSON.cxx.

◆ ReadFastArray() [13/15]

void TBufferJSON::ReadFastArray	(	Double_t *	d,
		Int_t	n
	)

virtual

read array of Double_t from buffer

Implements TBuffer.

Definition at line 2577 of file TBufferJSON.cxx.

◆ ReadFastArray() [14/15]

void TBufferJSON::ReadFastArray	(	void *	start,
		const TClass *	cl,
		Int_t	n = `1`,
		TMemberStreamer *	s = `nullptr`,
		const TClass *	onFileClass = `nullptr`
	)

virtual

Read an array of 'n' objects from the I/O buffer.

Stores the objects read starting at the address 'start'. The objects in the array are assume to be of class 'cl'. Copied code from TBufferFile

Implements TBuffer.

Definition at line 2588 of file TBufferJSON.cxx.

◆ ReadFastArray() [15/15]

void TBufferJSON::ReadFastArray	(	void **	startp,
		const TClass *	cl,
		Int_t	n = `1`,
		Bool_t	isPreAlloc = `kFALSE`,
		TMemberStreamer *	s = `nullptr`,
		const TClass *	onFileClass = `nullptr`
	)

virtual

redefined here to avoid warning message from gcc

Implements TBuffer.

Definition at line 2628 of file TBufferJSON.cxx.

◆ ReadFastArrayString()

void TBufferJSON::ReadFastArrayString	(	Char_t *	c,
		Int_t	n
	)

virtual

read array of Char_t from buffer

Implements TBuffer.

Definition at line 2489 of file TBufferJSON.cxx.

◆ ReadFloat()

void TBufferJSON::ReadFloat ( Float_t & f )

virtual

Reads Float_t value from buffer.

Implements TBuffer.

Definition at line 3252 of file TBufferJSON.cxx.

◆ ReadInt()

void TBufferJSON::ReadInt ( Int_t & i )

virtual

Reads Int_t value from buffer.

Implements TBuffer.

Definition at line 3201 of file TBufferJSON.cxx.

◆ ReadLong()

void TBufferJSON::ReadLong ( Long_t & l )

virtual

Reads Long_t value from buffer.

Implements TBuffer.

Definition at line 3220 of file TBufferJSON.cxx.

◆ ReadLong64()

void TBufferJSON::ReadLong64 ( Long64_t & l )

virtual

Reads Long64_t value from buffer.

Implements TBuffer.

Definition at line 3236 of file TBufferJSON.cxx.

◆ ReadObjectAny()

void * TBufferJSON::ReadObjectAny ( const TClass * clCast )

virtual

Read object from buffer. Only used from TBuffer.

Implements TBuffer.

Definition at line 2154 of file TBufferJSON.cxx.

◆ ReadShort()

void TBufferJSON::ReadShort ( Short_t & s )

virtual

Reads Short_t value from buffer.

Implements TBuffer.

Definition at line 3185 of file TBufferJSON.cxx.

◆ ReadStaticArray() [1/13]

Int_t TBufferJSON::ReadStaticArray ( Bool_t * b )

virtual

Read array of Bool_t from buffer.

Implements TBuffer.

Definition at line 2306 of file TBufferJSON.cxx.

◆ ReadStaticArray() [2/13]

Int_t TBufferJSON::ReadStaticArray ( Char_t * c )

virtual

Read array of Char_t from buffer.

Implements TBuffer.

Definition at line 2314 of file TBufferJSON.cxx.

◆ ReadStaticArray() [3/13]

Int_t TBufferJSON::ReadStaticArray ( UChar_t * c )

virtual

Read array of UChar_t from buffer.

Implements TBuffer.

Definition at line 2322 of file TBufferJSON.cxx.

◆ ReadStaticArray() [4/13]

Int_t TBufferJSON::ReadStaticArray ( Short_t * h )

virtual

Read array of Short_t from buffer.

Implements TBuffer.

Definition at line 2330 of file TBufferJSON.cxx.

◆ ReadStaticArray() [5/13]

Int_t TBufferJSON::ReadStaticArray ( UShort_t * h )

virtual

Read array of UShort_t from buffer.

Implements TBuffer.

Definition at line 2338 of file TBufferJSON.cxx.

◆ ReadStaticArray() [6/13]

Int_t TBufferJSON::ReadStaticArray ( Int_t * i )

virtual

Read array of Int_t from buffer.

Implements TBuffer.

Definition at line 2346 of file TBufferJSON.cxx.

◆ ReadStaticArray() [7/13]

Int_t TBufferJSON::ReadStaticArray ( UInt_t * i )

virtual

Read array of UInt_t from buffer.

Implements TBuffer.

Definition at line 2354 of file TBufferJSON.cxx.

◆ ReadStaticArray() [8/13]

Int_t TBufferJSON::ReadStaticArray ( Long_t * l )

virtual

Read array of Long_t from buffer.

Implements TBuffer.

Definition at line 2362 of file TBufferJSON.cxx.

◆ ReadStaticArray() [9/13]

Int_t TBufferJSON::ReadStaticArray ( ULong_t * l )

virtual

Read array of ULong_t from buffer.

Implements TBuffer.

Definition at line 2370 of file TBufferJSON.cxx.

◆ ReadStaticArray() [10/13]

Int_t TBufferJSON::ReadStaticArray ( Long64_t * l )

virtual

Read array of Long64_t from buffer.

Implements TBuffer.

Definition at line 2378 of file TBufferJSON.cxx.

◆ ReadStaticArray() [11/13]

Int_t TBufferJSON::ReadStaticArray ( ULong64_t * l )

virtual

Read array of ULong64_t from buffer.

Implements TBuffer.

Definition at line 2386 of file TBufferJSON.cxx.

◆ ReadStaticArray() [12/13]

Int_t TBufferJSON::ReadStaticArray ( Float_t * f )

virtual

Read array of Float_t from buffer.

Implements TBuffer.

Definition at line 2394 of file TBufferJSON.cxx.

◆ ReadStaticArray() [13/13]

Int_t TBufferJSON::ReadStaticArray ( Double_t * d )

virtual

Read array of Double_t from buffer.

Implements TBuffer.

Definition at line 2402 of file TBufferJSON.cxx.

◆ ReadStdString()

void TBufferJSON::ReadStdString ( std::string * s )

virtual

Reads a std::string.

Implements TBuffer.

Definition at line 3294 of file TBufferJSON.cxx.

◆ ReadTString()

void TBufferJSON::ReadTString ( TString & s )

virtual

Reads a TString.

Implements TBuffer.

Definition at line 3284 of file TBufferJSON.cxx.

◆ ReadUChar()

void TBufferJSON::ReadUChar ( UChar_t & c )

virtual

Reads UChar_t value from buffer.

Implements TBuffer.

Definition at line 3177 of file TBufferJSON.cxx.

◆ ReadUInt()

void TBufferJSON::ReadUInt ( UInt_t & i )

virtual

Reads UInt_t value from buffer.

Implements TBuffer.

Definition at line 3212 of file TBufferJSON.cxx.

◆ ReadULong()

void TBufferJSON::ReadULong ( ULong_t & l )

virtual

Reads ULong_t value from buffer.

Implements TBuffer.

Definition at line 3228 of file TBufferJSON.cxx.

◆ ReadULong64()

void TBufferJSON::ReadULong64 ( ULong64_t & l )

virtual

Reads ULong64_t value from buffer.

Implements TBuffer.

Definition at line 3244 of file TBufferJSON.cxx.

◆ ReadUShort()

void TBufferJSON::ReadUShort ( UShort_t & s )

virtual

Reads UShort_t value from buffer.

Implements TBuffer.

Definition at line 3193 of file TBufferJSON.cxx.

◆ ReadVersion()

Version_t TBufferJSON::ReadVersion	(	UInt_t *	start = `nullptr`,
		UInt_t *	bcnt = `nullptr`,
		const TClass *	cl = `nullptr`
	)

virtual

read version value from buffer

Implements TBuffer.

Definition at line 2123 of file TBufferJSON.cxx.

◆ SetCompact()

void TBufferJSON::SetCompact ( int level )

Definition at line 443 of file TBufferJSON.cxx.

◆ SetStreamerElementNumber()

void TBufferJSON::SetStreamerElementNumber	(	TStreamerElement *	elem,
		Int_t	comp_type
	)

virtual

Function is called from TStreamerInfo WriteBuffer and ReadBuffer functions and add/verify next element of json structure This calls allows separate data, correspondent to one class member, from another.

Implements TBuffer.

Definition at line 1748 of file TBufferJSON.cxx.

◆ SkipObjectAny()

void TBufferJSON::SkipObjectAny ( )

virtual

Skip any kind of object from buffer.

Implements TBuffer.

Definition at line 2165 of file TBufferJSON.cxx.

◆ Stack()

TJSONStackObj* TBufferJSON::Stack ( )

inlineprotected

Definition at line 222 of file TBufferJSON.h.

◆ StreamObject()

void TBufferJSON::StreamObject	(	void *	obj,
		const TClass *	cl,
		const TClass *	onFileClass = `nullptr`
	)

virtual

stream object to/from buffer

Implements TBuffer.

Definition at line 3135 of file TBufferJSON.cxx.

◆ ToJSON()

template<class T >

static TString TBufferJSON::ToJSON	(	const T *	obj,
		Int_t	compact = `0`,
		const char *	member_name = `nullptr`
	)

inlinestatic

Definition at line 47 of file TBufferJSON.h.

◆ WorkWithClass()

void TBufferJSON::WorkWithClass	(	TStreamerInfo *	info,
		const TClass *	cl = `nullptr`
	)

protected

Prepares buffer to stream data of specified class.

Definition at line 1666 of file TBufferJSON.cxx.

◆ WorkWithElement()

void TBufferJSON::WorkWithElement	(	TStreamerElement *	elem,
		Int_t
	)

protected

This is call-back from streamer which indicates that class member will be streamed Name of element used in JSON.

Definition at line 1761 of file TBufferJSON.cxx.

◆ WriteArray() [1/13]

void TBufferJSON::WriteArray	(	const Bool_t *	b,
		Int_t	n
	)

virtual

Write array of Bool_t to buffer.

Implements TBuffer.

Definition at line 2757 of file TBufferJSON.cxx.

◆ WriteArray() [2/13]

void TBufferJSON::WriteArray	(	const Char_t *	c,
		Int_t	n
	)

virtual

Write array of Char_t to buffer.

Implements TBuffer.

Definition at line 2766 of file TBufferJSON.cxx.

◆ WriteArray() [3/13]

void TBufferJSON::WriteArray	(	const UChar_t *	c,
		Int_t	n
	)

virtual

Write array of UChar_t to buffer.

Implements TBuffer.

Definition at line 2775 of file TBufferJSON.cxx.

◆ WriteArray() [4/13]

void TBufferJSON::WriteArray	(	const Short_t *	h,
		Int_t	n
	)

virtual

Write array of Short_t to buffer.

Implements TBuffer.

Definition at line 2784 of file TBufferJSON.cxx.

◆ WriteArray() [5/13]

void TBufferJSON::WriteArray	(	const UShort_t *	h,
		Int_t	n
	)

virtual

Write array of UShort_t to buffer.

Implements TBuffer.

Definition at line 2793 of file TBufferJSON.cxx.

◆ WriteArray() [6/13]

void TBufferJSON::WriteArray	(	const Int_t *	i,
		Int_t	n
	)

virtual

Write array of Int_ to buffer.

Implements TBuffer.

Definition at line 2802 of file TBufferJSON.cxx.

◆ WriteArray() [7/13]

void TBufferJSON::WriteArray	(	const UInt_t *	i,
		Int_t	n
	)

virtual

Write array of UInt_t to buffer.

Implements TBuffer.

Definition at line 2811 of file TBufferJSON.cxx.

◆ WriteArray() [8/13]

void TBufferJSON::WriteArray	(	const Long_t *	l,
		Int_t	n
	)

virtual

Write array of Long_t to buffer.

Implements TBuffer.

Definition at line 2820 of file TBufferJSON.cxx.

◆ WriteArray() [9/13]

void TBufferJSON::WriteArray	(	const ULong_t *	l,
		Int_t	n
	)

virtual

Write array of ULong_t to buffer.

Implements TBuffer.

Definition at line 2829 of file TBufferJSON.cxx.

◆ WriteArray() [10/13]

void TBufferJSON::WriteArray	(	const Long64_t *	l,
		Int_t	n
	)

virtual

Write array of Long64_t to buffer.

Implements TBuffer.

Definition at line 2838 of file TBufferJSON.cxx.

◆ WriteArray() [11/13]

void TBufferJSON::WriteArray	(	const ULong64_t *	l,
		Int_t	n
	)

virtual

Write array of ULong64_t to buffer.

Implements TBuffer.

Definition at line 2847 of file TBufferJSON.cxx.

◆ WriteArray() [12/13]

void TBufferJSON::WriteArray	(	const Float_t *	f,
		Int_t	n
	)

virtual

Write array of Float_t to buffer.

Implements TBuffer.

Definition at line 2856 of file TBufferJSON.cxx.

◆ WriteArray() [13/13]

void TBufferJSON::WriteArray	(	const Double_t *	d,
		Int_t	n
	)

virtual

Write array of Double_t to buffer.

Implements TBuffer.

Definition at line 2865 of file TBufferJSON.cxx.

◆ WriteBool()

void TBufferJSON::WriteBool ( Bool_t b )

virtual

Writes Bool_t value to buffer.

Implements TBuffer.

Definition at line 3323 of file TBufferJSON.cxx.

◆ WriteChar()

void TBufferJSON::WriteChar ( Char_t c )

virtual

Writes Char_t value to buffer.

Implements TBuffer.

Definition at line 3332 of file TBufferJSON.cxx.

◆ WriteCharP()

void TBufferJSON::WriteCharP ( const Char_t * c )

virtual

Writes array of characters to buffer.

Implements TBuffer.

Definition at line 3440 of file TBufferJSON.cxx.

◆ WriteCharStar()

void TBufferJSON::WriteCharStar ( char * s )

virtual

Writes a char*.

Implements TBuffer.

Definition at line 3473 of file TBufferJSON.cxx.

◆ WriteClass()

void TBufferJSON::WriteClass ( const TClass * cl )

virtual

suppressed function of TBuffer

Implements TBuffer.

Definition at line 2116 of file TBufferJSON.cxx.

◆ WriteDouble()

void TBufferJSON::WriteDouble ( Double_t d )

virtual

Writes Double_t value to buffer.

Implements TBuffer.

Definition at line 3431 of file TBufferJSON.cxx.

◆ WriteFastArray() [1/15]

void TBufferJSON::WriteFastArray	(	const Bool_t *	b,
		Int_t	n
	)

virtual

Write array of Bool_t to buffer.

Implements TBuffer.

Definition at line 2914 of file TBufferJSON.cxx.

◆ WriteFastArray() [2/15]

void TBufferJSON::WriteFastArray	(	const Char_t *	c,
		Int_t	n
	)

virtual

Write array of Char_t to buffer.

Implements TBuffer.

Definition at line 2922 of file TBufferJSON.cxx.

◆ WriteFastArray() [3/15]

void TBufferJSON::WriteFastArray	(	const UChar_t *	c,
		Int_t	n
	)

virtual

Write array of UChar_t to buffer.

Implements TBuffer.

Definition at line 2938 of file TBufferJSON.cxx.

◆ WriteFastArray() [4/15]

void TBufferJSON::WriteFastArray	(	const Short_t *	h,
		Int_t	n
	)

virtual

Write array of Short_t to buffer.

Implements TBuffer.

Definition at line 2946 of file TBufferJSON.cxx.

◆ WriteFastArray() [5/15]

void TBufferJSON::WriteFastArray	(	const UShort_t *	h,
		Int_t	n
	)

virtual

Write array of UShort_t to buffer.

Implements TBuffer.

Definition at line 2954 of file TBufferJSON.cxx.

◆ WriteFastArray() [6/15]

void TBufferJSON::WriteFastArray	(	const Int_t *	i,
		Int_t	n
	)

virtual

Write array of Int_t to buffer.

Implements TBuffer.

Definition at line 2962 of file TBufferJSON.cxx.

◆ WriteFastArray() [7/15]

void TBufferJSON::WriteFastArray	(	const UInt_t *	i,
		Int_t	n
	)

virtual

Write array of UInt_t to buffer.

Implements TBuffer.

Definition at line 2970 of file TBufferJSON.cxx.

◆ WriteFastArray() [8/15]

void TBufferJSON::WriteFastArray	(	const Long_t *	l,
		Int_t	n
	)

virtual

Write array of Long_t to buffer.

Implements TBuffer.

Definition at line 2978 of file TBufferJSON.cxx.

◆ WriteFastArray() [9/15]

void TBufferJSON::WriteFastArray	(	const ULong_t *	l,
		Int_t	n
	)

virtual

Write array of ULong_t to buffer.

Implements TBuffer.

Definition at line 2986 of file TBufferJSON.cxx.

◆ WriteFastArray() [10/15]

void TBufferJSON::WriteFastArray	(	const Long64_t *	l,
		Int_t	n
	)

virtual

Write array of Long64_t to buffer.

Implements TBuffer.

Definition at line 2994 of file TBufferJSON.cxx.

◆ WriteFastArray() [11/15]

void TBufferJSON::WriteFastArray	(	const ULong64_t *	l,
		Int_t	n
	)

virtual

Write array of ULong64_t to buffer.

Implements TBuffer.

Definition at line 3002 of file TBufferJSON.cxx.

◆ WriteFastArray() [12/15]

void TBufferJSON::WriteFastArray	(	const Float_t *	f,
		Int_t	n
	)

virtual

Write array of Float_t to buffer.

Implements TBuffer.

Definition at line 3010 of file TBufferJSON.cxx.

◆ WriteFastArray() [13/15]

void TBufferJSON::WriteFastArray	(	const Double_t *	d,
		Int_t	n
	)

virtual

Write array of Double_t to buffer.

Implements TBuffer.

Definition at line 3018 of file TBufferJSON.cxx.

◆ WriteFastArray() [14/15]

void TBufferJSON::WriteFastArray	(	void *	start,
		const TClass *	cl,
		Int_t	n = `1`,
		TMemberStreamer *	s = `nullptr`
	)

virtual

Recall TBuffer function to avoid gcc warning message.

Implements TBuffer.

Definition at line 3026 of file TBufferJSON.cxx.

◆ WriteFastArray() [15/15]

Int_t TBufferJSON::WriteFastArray	(	void **	startp,
		const TClass *	cl,
		Int_t	n = `1`,
		Bool_t	isPreAlloc = `kFALSE`,
		TMemberStreamer *	s = `nullptr`
	)

virtual

Recall TBuffer function to avoid gcc warning message.

Implements TBuffer.

Definition at line 3079 of file TBufferJSON.cxx.

◆ WriteFastArrayString()

void TBufferJSON::WriteFastArrayString	(	const Char_t *	c,
		Int_t	n
	)

virtual

Write array of Char_t to buffer.

Implements TBuffer.

Definition at line 2930 of file TBufferJSON.cxx.

◆ WriteFloat()

void TBufferJSON::WriteFloat ( Float_t f )

virtual

Writes Float_t value to buffer.

Implements TBuffer.

Definition at line 3422 of file TBufferJSON.cxx.

◆ WriteInt()

void TBufferJSON::WriteInt ( Int_t i )

virtual

Writes Int_t value to buffer.

Implements TBuffer.

Definition at line 3368 of file TBufferJSON.cxx.

◆ WriteLong()

void TBufferJSON::WriteLong ( Long_t l )

virtual

Writes Long_t value to buffer.

Implements TBuffer.

Definition at line 3386 of file TBufferJSON.cxx.

◆ WriteLong64()

void TBufferJSON::WriteLong64 ( Long64_t l )

virtual

Writes Long64_t value to buffer.

Implements TBuffer.

Definition at line 3404 of file TBufferJSON.cxx.

◆ WriteObjectClass()

void TBufferJSON::WriteObjectClass	(	const void *	actualObjStart,
		const TClass *	actualClass,
		Bool_t	cacheReuse
	)

protectedvirtual

Write object to buffer. Only used from TBuffer.

Implements TBufferIO.

Definition at line 2172 of file TBufferJSON.cxx.

◆ WriteShort()

void TBufferJSON::WriteShort ( Short_t s )

virtual

Writes Short_t value to buffer.

Implements TBuffer.

Definition at line 3350 of file TBufferJSON.cxx.

◆ WriteStdString()

void TBufferJSON::WriteStdString ( const std::string * s )

virtual

Writes a std::string.

Implements TBuffer.

Definition at line 3460 of file TBufferJSON.cxx.

◆ WriteTString()

void TBufferJSON::WriteTString ( const TString & s )

virtual

Writes a TString.

Implements TBuffer.

Definition at line 3450 of file TBufferJSON.cxx.

◆ WriteUChar()

void TBufferJSON::WriteUChar ( UChar_t c )

virtual

Writes UChar_t value to buffer.

Implements TBuffer.

Definition at line 3341 of file TBufferJSON.cxx.

◆ WriteUInt()

void TBufferJSON::WriteUInt ( UInt_t i )

virtual

Writes UInt_t value to buffer.

Implements TBuffer.

Definition at line 3377 of file TBufferJSON.cxx.

◆ WriteULong()

void TBufferJSON::WriteULong ( ULong_t l )

virtual

Writes ULong_t value to buffer.

Implements TBuffer.

Definition at line 3395 of file TBufferJSON.cxx.

◆ WriteULong64()

void TBufferJSON::WriteULong64 ( ULong64_t l )

virtual

Writes ULong64_t value to buffer.

Implements TBuffer.

Definition at line 3413 of file TBufferJSON.cxx.

◆ WriteUShort()

void TBufferJSON::WriteUShort ( UShort_t s )

virtual

Writes UShort_t value to buffer.

Implements TBuffer.

Definition at line 3359 of file TBufferJSON.cxx.

◆ WriteVersion()

UInt_t TBufferJSON::WriteVersion	(	const TClass *	cl,
		Bool_t	useBcnt = `kFALSE`
	)

virtual

Ignored in TBufferJSON.

Implements TBuffer.

Definition at line 2146 of file TBufferJSON.cxx.

Member Data Documentation

◆ fArraySepar

TString TBufferJSON::fArraySepar

protected

! depending from compression level, ", " or ","

Definition at line 287 of file TBufferJSON.h.

◆ fCompact

Int_t TBufferJSON::fCompact

protected

! 0 - no any compression, 1 - no spaces in the begin, 2 - no new lines, 3 - no spaces at all

Definition at line 285 of file TBufferJSON.h.

◆ fJsonrCnt

unsigned TBufferJSON::fJsonrCnt

protected

! counter for all objects, used for referencing

Definition at line 283 of file TBufferJSON.h.

◆ fNumericLocale

TString TBufferJSON::fNumericLocale

protected

! stored value of setlocale(LC_NUMERIC), which should be recovered at the end

Definition at line 288 of file TBufferJSON.h.

◆ fOutBuffer

TString TBufferJSON::fOutBuffer

protected

! main output buffer for json code

Definition at line 280 of file TBufferJSON.h.

◆ fOutput

TString* TBufferJSON::fOutput

protected

! current output buffer for json code

Definition at line 281 of file TBufferJSON.h.

◆ fSemicolon

TString TBufferJSON::fSemicolon

protected

! depending from compression level, " : " or ":"

Definition at line 286 of file TBufferJSON.h.

◆ fStack

std::deque<TJSONStackObj *> TBufferJSON::fStack

protected

! hierarchy of currently streamed element

Definition at line 284 of file TBufferJSON.h.

◆ fValue

TString TBufferJSON::fValue

protected

! buffer for current value

Definition at line 282 of file TBufferJSON.h.

Libraries for TBufferJSON:

[legend]

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TBufferJSON()

◆ ~TBufferJSON()

Member Function Documentation

◆ AppendOutput()

◆ ClassBegin()

◆ ClassEnd()

◆ ClassMember()

◆ ConvertFromJSON()

◆ ConvertFromJSONAny()

◆ ConvertFromJSONChecked()

◆ ConvertToJSON() [1/3]

◆ ConvertToJSON() [2/3]

◆ ConvertToJSON() [3/3]

◆ DecrementLevel()

◆ ExportToFile() [1/2]

◆ ExportToFile() [2/2]

◆ FromJSON()

◆ GetInfo()

◆ IncrementLevel()

◆ JsonDisablePostprocessing()

◆ JsonPushValue()

◆ JsonReadArray()

◆ JsonReadBasic()

◆ JsonReadCollection()

◆ JsonReadFastArray()

◆ JsonReadObject()

◆ JsonReadTObjectMembers()

◆ JsonSpecialClass()

◆ JsonStartElement()

◆ JsonWriteArrayCompress()

◆ JsonWriteBasic() [1/13]

◆ JsonWriteBasic() [2/13]

◆ JsonWriteBasic() [3/13]

◆ JsonWriteBasic() [4/13]

◆ JsonWriteBasic() [5/13]

◆ JsonWriteBasic() [6/13]

◆ JsonWriteBasic() [7/13]

◆ JsonWriteBasic() [8/13]

◆ JsonWriteBasic() [9/13]

◆ JsonWriteBasic() [10/13]

◆ JsonWriteBasic() [11/13]

◆ JsonWriteBasic() [12/13]

◆ JsonWriteBasic() [13/13]

◆ JsonWriteCollection()

◆ JsonWriteConstChar()

◆ JsonWriteFastArray()

◆ JsonWriteMember()

◆ JsonWriteObject()

◆ PerformPostProcessing()

◆ PopStack()

◆ PushStack()

◆ ReadArray() [1/13]

◆ ReadArray() [2/13]

◆ ReadArray() [3/13]

◆ ReadArray() [4/13]

◆ ReadArray() [5/13]

◆ ReadArray() [6/13]

◆ ReadArray() [7/13]

◆ ReadArray() [8/13]

◆ ReadArray() [9/13]

◆ ReadArray() [10/13]

◆ ReadArray() [11/13]

◆ ReadArray() [12/13]

◆ ReadArray() [13/13]

◆ ReadBaseClass()

◆ ReadBool()

◆ ReadChar()

◆ ReadCharP()

◆ ReadCharStar()

◆ ReadClass()

◆ ReadDouble()

◆ ReadFastArray() [1/15]

◆ ReadFastArray() [2/15]