ROOT 6.14/05 Reference Guide |
This class is a small helper class to implement reading a data member on an object stored in a TTree.
TTreeFormula now relies on a variety of TFormLeafInfo classes to handle the reading of the information. Here is the list of theses classes:
The following method are available from the TFormLeafInfo interface:
Definition at line 49 of file TFormLeafInfo.h.
Classes | |
struct | GetValueHelper |
struct | GetValueHelper< Long64_t > |
struct | GetValueHelper< LongDouble_t > |
struct | GetValueHelper< ULong64_t > |
struct | ReadValueHelper |
struct | ReadValueHelper< Long64_t > |
struct | ReadValueHelper< LongDouble_t > |
struct | ReadValueHelper< ULong64_t > |
Public Member Functions | |
TFormLeafInfo (TClass *classptr=0, Long_t offset=0, TStreamerElement *element=0) | |
Constructor. More... | |
TFormLeafInfo (const TFormLeafInfo &orig) | |
Constructor. More... | |
virtual | ~TFormLeafInfo () |
Delete this object and all its content. More... | |
virtual void | AddOffset (Int_t offset, TStreamerElement *element) |
Increase the offset of this element. More... | |
virtual TFormLeafInfo * | DeepCopy () const |
Make a complete copy of this FormLeafInfo and all its content. More... | |
virtual Int_t | GetArrayLength () |
Return the current length of the array. More... | |
virtual TClass * | GetClass () const |
Get the class of the underlying data. More... | |
virtual Int_t | GetCounterValue (TLeaf *leaf) |
Return the size of the underlying array for the current entry in the TTree. More... | |
virtual void * | GetLocalValuePointer (TLeaf *leaf, Int_t instance=0) |
returns the address of the value pointed to by the TFormLeafInfo. More... | |
virtual void * | GetLocalValuePointer (char *from, Int_t instance=0) |
returns the address of the value pointed to by the TFormLeafInfo. More... | |
Int_t | GetMultiplicity () |
Reminder of the meaning of fMultiplicity: More... | |
Int_t | GetNdata (TLeaf *leaf) |
virtual Int_t | GetNdata () |
Get the number of element in the entry. More... | |
char * | GetObjectAddress (TLeafElement *leaf, Int_t &instance) |
Returns the the location of the object pointed to. More... | |
virtual Int_t | GetPrimaryIndex () |
Method for multiple variable dimensions. More... | |
virtual Int_t | GetSize (Int_t index) |
For the current entry, and the value 'index' for the main array, return the size of the secondary variable dimension of the 'array'. More... | |
virtual Int_t | GetSumOfSizes () |
Total all the elements that are available for the current entry for the secondary variable dimension. More... | |
template<typename T > | |
T | GetTypedValue (TLeaf *leaf, Int_t instance=0) |
virtual void * | GetValuePointer (TLeaf *leaf, Int_t instance=0) |
returns the address of the value pointed to by the serie of TFormLeafInfo. More... | |
virtual void * | GetValuePointer (char *from, Int_t instance=0) |
returns the address of the value pointed to by the TFormLeafInfo. More... | |
virtual Int_t | GetVarDim () |
Return the index of the dimension which varies for each elements of an enclosing array (typically a TClonesArray) More... | |
virtual Int_t | GetVirtVarDim () |
Return the virtual index (for this expression) of the dimension which varies for each elements of an enclosing array (typically a TClonesArray) More... | |
virtual Bool_t | HasCounter () const |
Return true if any of underlying data has a array size counter. More... | |
virtual Bool_t | IsInteger () const |
Return true if the underlying data is an integral value. More... | |
virtual Bool_t | IsReference () const |
virtual Bool_t | IsString () const |
Return true if the underlying data is a string. More... | |
virtual void | LoadSizes (TBranch *branch) |
Load the current array sizes. More... | |
TFormLeafInfo & | operator= (const TFormLeafInfo &orig) |
Exception safe assignment operator. More... | |
virtual Int_t | ReadCounterValue (char *where) |
Return the size of the underlying array for the current entry in the TTree. More... | |
template<typename T > | |
T | ReadTypedValue (char *where, Int_t instance=0) |
virtual void | SetBranch (TBranch *br) |
virtual void | SetPrimaryIndex (Int_t index) |
Set the primary index value. More... | |
virtual void | SetSecondaryIndex (Int_t index) |
Set the primary index value. More... | |
virtual void | SetSize (Int_t index, Int_t val) |
Set the current size of the arrays. More... | |
void | Swap (TFormLeafInfo &other) |
virtual Bool_t | Update () |
We reloading all cached information in case the underlying class information has changed (for example when changing from the 'emulated' class to the real class. More... | |
virtual void | UpdateSizes (TArrayI *garr) |
Set the current sizes of the arrays. More... | |
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 Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. 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... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. More... | |
Public Attributes | |
DECLARE_GETVAL | |
DECLARE_READVAL | |
TClass * | fClass |
TString | fClassName |
TFormLeafInfo * | fCounter |
Descriptor of the data pointed to. More... | |
TStreamerElement * | fElement |
Offset of the data pointed inside the class fClass. More... | |
TString | fElementName |
TFormLeafInfo * | fNext |
Long_t | fOffset |
This is the class of the data pointed to. More... | |
Protected Attributes | |
Int_t | fMultiplicity |
Additional Inherited Members | |
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) } |
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 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 () |
#include <TFormLeafInfo.h>
TFormLeafInfo::TFormLeafInfo | ( | TClass * | classptr = 0 , |
Long_t | offset = 0 , |
||
TStreamerElement * | element = 0 |
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) |
Constructor.
Definition at line 74 of file TFormLeafInfo.cxx.
TFormLeafInfo::TFormLeafInfo | ( | const TFormLeafInfo & | orig | ) |
Constructor.
Definition at line 88 of file TFormLeafInfo.cxx.
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Delete this object and all its content.
Definition at line 135 of file TFormLeafInfo.cxx.
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virtual |
Increase the offset of this element.
This intended to be the offset from the start of the object to which the data member belongs.
Definition at line 145 of file TFormLeafInfo.cxx.
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virtual |
Make a complete copy of this FormLeafInfo and all its content.
Reimplemented in TFormLeafInfoTTree, TFormLeafInfoCast, TFormLeafInfoMultiVarDimClones, TFormLeafInfoMultiVarDimCollection, TFormLeafInfoMultiVarDimDirect, TFormLeafInfoMultiVarDim, TFormLeafInfoMethod, TFormLeafInfoPointer, TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoClones, TFormLeafInfoCollectionObject, TFormLeafInfoNumerical, TFormLeafInfoDirect, and TFormLeafInfoReference.
Definition at line 127 of file TFormLeafInfo.cxx.
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Return the current length of the array.
Reimplemented in TFormLeafInfoMultiVarDimClones, and TFormLeafInfoMultiVarDimCollection.
Definition at line 158 of file TFormLeafInfo.cxx.
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virtual |
Get the class of the underlying data.
Reimplemented in TFormLeafInfoMethod, and TFormLeafInfoReference.
Definition at line 173 of file TFormLeafInfo.cxx.
Return the size of the underlying array for the current entry in the TTree.
Reimplemented in TFormLeafInfoCollection, TFormLeafInfoClones, TFormLeafInfoCollectionObject, and TFormLeafInfoReference.
Definition at line 575 of file TFormLeafInfo.cxx.
returns the address of the value pointed to by the TFormLeafInfo.
Reimplemented in TFormLeafInfoTTree, TFormLeafInfoMethod, TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoClones, TFormLeafInfoCollectionObject, TFormLeafInfoDirect, and TFormLeafInfoReference.
Definition at line 603 of file TFormLeafInfo.cxx.
returns the address of the value pointed to by the TFormLeafInfo.
Reimplemented in TFormLeafInfoMethod, TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoClones, TFormLeafInfoCollectionObject, TFormLeafInfoDirect, and TFormLeafInfoReference.
Definition at line 641 of file TFormLeafInfo.cxx.
Int_t TFormLeafInfo::GetMultiplicity | ( | ) |
Reminder of the meaning of fMultiplicity:
Definition at line 314 of file TFormLeafInfo.cxx.
Definition at line 320 of file TFormLeafInfo.cxx.
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virtual |
Get the number of element in the entry.
Reimplemented in TFormLeafInfoCast.
Definition at line 332 of file TFormLeafInfo.cxx.
char * TFormLeafInfo::GetObjectAddress | ( | TLeafElement * | leaf, |
Int_t & | instance | ||
) |
Returns the the location of the object pointed to.
Modify instance if the object is part of an array.
Definition at line 184 of file TFormLeafInfo.cxx.
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virtual |
Method for multiple variable dimensions.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 418 of file TFormLeafInfo.cxx.
For the current entry, and the value 'index' for the main array, return the size of the secondary variable dimension of the 'array'.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 448 of file TFormLeafInfo.cxx.
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virtual |
Total all the elements that are available for the current entry for the secondary variable dimension.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 458 of file TFormLeafInfo.cxx.
Definition at line 135 of file TFormLeafInfo.h.
returns the address of the value pointed to by the serie of TFormLeafInfo.
Reimplemented in TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoClones, and TFormLeafInfoCollectionObject.
Definition at line 619 of file TFormLeafInfo.cxx.
returns the address of the value pointed to by the TFormLeafInfo.
Reimplemented in TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoClones, and TFormLeafInfoCollectionObject.
Definition at line 630 of file TFormLeafInfo.cxx.
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virtual |
Return the index of the dimension which varies for each elements of an enclosing array (typically a TClonesArray)
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 428 of file TFormLeafInfo.cxx.
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virtual |
Return the virtual index (for this expression) of the dimension which varies for each elements of an enclosing array (typically a TClonesArray)
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 438 of file TFormLeafInfo.cxx.
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virtual |
Return true if any of underlying data has a array size counter.
Reimplemented in TFormLeafInfoCollection, and TFormLeafInfoReference.
Definition at line 341 of file TFormLeafInfo.cxx.
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virtual |
Return true if the underlying data is an integral value.
Reimplemented in TFormLeafInfoMethod, and TFormLeafInfoReference.
Definition at line 374 of file TFormLeafInfo.cxx.
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inlinevirtual |
Reimplemented in TFormLeafInfoReference.
Definition at line 101 of file TFormLeafInfo.h.
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virtual |
Return true if the underlying data is a string.
Reimplemented in TFormLeafInfoMethod, TFormLeafInfoNumerical, and TFormLeafInfoReference.
Definition at line 351 of file TFormLeafInfo.cxx.
Load the current array sizes.
Reimplemented in TFormLeafInfoMultiVarDimClones, TFormLeafInfoMultiVarDimCollection, and TFormLeafInfoMultiVarDim.
Definition at line 467 of file TFormLeafInfo.cxx.
TFormLeafInfo & TFormLeafInfo::operator= | ( | const TFormLeafInfo & | orig | ) |
Exception safe assignment operator.
Definition at line 98 of file TFormLeafInfo.cxx.
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virtual |
Return the size of the underlying array for the current entry in the TTree.
Reimplemented in TFormLeafInfoCollection, TFormLeafInfoClones, and TFormLeafInfoReference.
Definition at line 588 of file TFormLeafInfo.cxx.
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inline |
Definition at line 126 of file TFormLeafInfo.h.
Reimplemented in TFormLeafInfoReference.
Definition at line 113 of file TFormLeafInfo.h.
Set the primary index value.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 475 of file TFormLeafInfo.cxx.
Set the primary index value.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 483 of file TFormLeafInfo.cxx.
Set the current size of the arrays.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 491 of file TFormLeafInfo.cxx.
void TFormLeafInfo::Swap | ( | TFormLeafInfo & | other | ) |
Definition at line 107 of file TFormLeafInfo.cxx.
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virtual |
We reloading all cached information in case the underlying class information has changed (for example when changing from the 'emulated' class to the real class.
Reimplemented in TFormLeafInfoTTree, TFormLeafInfoCast, TFormLeafInfoMultiVarDim, TFormLeafInfoMethod, TFormLeafInfoCollectionSize, TFormLeafInfoCollection, TFormLeafInfoNumerical, and TFormLeafInfoReference.
Definition at line 509 of file TFormLeafInfo.cxx.
Set the current sizes of the arrays.
Reimplemented in TFormLeafInfoMultiVarDim.
Definition at line 499 of file TFormLeafInfo.cxx.
TFormLeafInfo::DECLARE_GETVAL |
Definition at line 118 of file TFormLeafInfo.h.
TFormLeafInfo::DECLARE_READVAL |
Definition at line 119 of file TFormLeafInfo.h.
TClass* TFormLeafInfo::fClass |
Definition at line 62 of file TFormLeafInfo.h.
TString TFormLeafInfo::fClassName |
Definition at line 70 of file TFormLeafInfo.h.
TFormLeafInfo* TFormLeafInfo::fCounter |
Descriptor of the data pointed to.
Definition at line 68 of file TFormLeafInfo.h.
TStreamerElement* TFormLeafInfo::fElement |
Offset of the data pointed inside the class fClass.
Definition at line 65 of file TFormLeafInfo.h.
TString TFormLeafInfo::fElementName |
Definition at line 71 of file TFormLeafInfo.h.
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protected |
Definition at line 74 of file TFormLeafInfo.h.
TFormLeafInfo* TFormLeafInfo::fNext |
Definition at line 69 of file TFormLeafInfo.h.
Long_t TFormLeafInfo::fOffset |
This is the class of the data pointed to.
Definition at line 64 of file TFormLeafInfo.h.