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TSelector Class Reference

A TSelector object is used by the TTree::Draw, TTree::Scan, TTree::Process to navigate in a TTree and make selections.

It contains the following main methods:

WARNING when a selector is used with a TChain:

in the Process, ProcessCut, ProcessFill function, you must use the pointer to the current Tree to call GetEntry(entry). entry is always the local entry number in the current tree. Assuming that fChain is the pointer to the TChain being processed, use fChain->GetTree()->GetEntry(entry);

Definition at line 39 of file TSelector.h.

Public Types

enum  EAbort { kContinue, kAbortProcess, kAbortFile }
 
- Public Types inherited from TObject
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 

Public Member Functions

 TSelector ()
 
virtual ~TSelector ()
 Selector destructor. More...
 
virtual int Version () const
 
virtual void Init (TTree *)
 
virtual void Begin (TTree *)
 
virtual void SlaveBegin (TTree *)
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
virtual const char * GetOption () const
 
virtual Long64_t GetStatus () const
 
virtual Int_t GetEntry (Long64_t, Int_t=0)
 
virtual Bool_t ProcessCut (Long64_t)
 
virtual void ProcessFill (Long64_t)
 
virtual Bool_t Process (Long64_t)
 
virtual void SetOption (const char *option)
 
virtual void SetObject (TObject *obj)
 
virtual void SetInputList (TList *input)
 
virtual void SetStatus (Long64_t status)
 
virtual TListGetInputList () const
 
virtual TListGetOutputList () const
 
virtual void SlaveTerminate ()
 
virtual void Terminate ()
 
virtual void Abort (const char *why, EAbort what=kAbortProcess)
 Abort processing. More...
 
virtual EAbort GetAbort () const
 
virtual void ResetAbort ()
 
- Public Member Functions inherited from TObject
 TObject ()
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual ~TObject ()
 TObject destructor. 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...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (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 TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. 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 TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetIconName () const
 Returns mime type 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 const char * GetTitle () const
 Returns title of object. 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...
 
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...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
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 IsSortable () const
 
Bool_t IsOnHeap () const
 
Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. 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...
 
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...
 
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 UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. 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...
 
voidoperator new (size_t sz)
 
voidoperator new[] (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz, void *vp)
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. 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)
 
void ResetBit (UInt_t f)
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
void InvertBit (UInt_t f)
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. 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...
 
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...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 

Static Public Member Functions

static TSelectorGetSelector (const char *filename)
 The code in filename is loaded (interpreted or compiled, see below), filename must contain a valid class implementation derived from TSelector. More...
 
static Bool_t IsStandardDraw (const char *selec)
 Find out if this is a standard selection used for Draw actions (either TSelectorDraw, TProofDraw or deriving from them). More...
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 

Protected Attributes

Long64_t fStatus
 
EAbort fAbort
 
TString fOption
 
TObjectfObject
 
TListfInput
 Current object if processing object (vs. TTree) More...
 
TSelectorListfOutput
 

Private Member Functions

 TSelector (const TSelector &)
 List of objects created during processing. More...
 
TSelectoroperator= (const TSelector &)
 

Additional Inherited Members

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

#include <TSelector.h>

Inheritance diagram for TSelector:
[legend]

Member Enumeration Documentation

Enumerator
kContinue 
kAbortProcess 
kAbortFile 

Definition at line 42 of file TSelector.h.

Constructor & Destructor Documentation

TSelector::TSelector ( const TSelector )
private

List of objects created during processing.

TSelector::TSelector ( )
TSelector::~TSelector ( )
virtual

Selector destructor.

Definition at line 100 of file TSelector.cxx.

Member Function Documentation

void TSelector::Abort ( const char *  why,
EAbort  what = kAbortProcess 
)
virtual

Abort processing.

If what = kAbortProcess, the Process() loop will be aborted. If what = kAbortFile, the current file in a chain will be aborted and the processing will continue with the next file, if there is no next file then Process() will be aborted. Abort() can also be called from Begin(), SlaveBegin(), Init() and Notify(). After abort the SlaveTerminate() and Terminate() are always called. The abort flag can be checked in these methods using GetAbort().

Reimplemented in TSelectorCint, and TPySelector.

Definition at line 114 of file TSelector.cxx.

Referenced by TPySelector::Abort(), TSelectorDraw::Begin(), and TSelVerifyDataSet::SlaveBegin().

virtual void TSelector::Begin ( TTree )
inlinevirtual
virtual EAbort TSelector::GetAbort ( ) const
inlinevirtual

Reimplemented in TSelectorCint.

Definition at line 80 of file TSelector.h.

Referenced by TEventIterTree::GetNextEvent(), TEventIterTree::GetNextPacket(), and TTreePlayer::Process().

virtual Int_t TSelector::GetEntry ( Long64_t  ,
Int_t  = 0 
)
inlinevirtual

Reimplemented in TSelectorEntries, TPySelector, and RooProofDriverSelector.

Definition at line 67 of file TSelector.h.

virtual TList* TSelector::GetInputList ( ) const
inlinevirtual

Definition at line 75 of file TSelector.h.

Referenced by TProofPlayerLite::Process().

virtual const char* TSelector::GetOption ( ) const
inlinevirtual
virtual TList* TSelector::GetOutputList ( ) const
inlinevirtual
TSelector * TSelector::GetSelector ( const char *  filename)
static

The code in filename is loaded (interpreted or compiled, see below), filename must contain a valid class implementation derived from TSelector.

If filename is of the form file.C, the file will be interpreted. If filename is of the form file.C++, the file file.C will be compiled and dynamically loaded. The corresponding binary file and shared library will be deleted at the end of the function. If filename is of the form file.C+, the file file.C will be compiled and dynamically loaded. At next call, if file.C is older than file.o and file.so, the file.C is not compiled, only file.so is loaded.

The static function returns a pointer to a TSelector object

Definition at line 140 of file TSelector.cxx.

Referenced by TProofPlayer::AssertSelector(), TProofLite::CopyMacroToCache(), TProofPlayerLite::MakeSelector(), TTreePlayer::Process(), TProofPlayerRemote::Process(), and TProofPlayer::ReinitSelector().

virtual Long64_t TSelector::GetStatus ( ) const
inlinevirtual

Reimplemented in TSelectorCint.

Definition at line 66 of file TSelector.h.

Referenced by TProofPlayerLite::Finalize(), and TTreePlayer::Process().

virtual void TSelector::Init ( TTree )
inlinevirtual
Bool_t TSelector::IsStandardDraw ( const char *  selec)
static

Find out if this is a standard selection used for Draw actions (either TSelectorDraw, TProofDraw or deriving from them).

Definition at line 235 of file TSelector.cxx.

Referenced by ClassImp(), TProofPlayerLite::Process(), and TProofPlayer::ReinitSelector().

virtual Bool_t TSelector::Notify ( )
inlinevirtual

This method must be overridden to handle object notification.

Reimplemented from TObject.

Reimplemented in h1analysis, TSelEvent, TSelectorDraw, TProofDraw, TSelVerifyDataSet, TSelEventGen, TSelectorCint, h1analysisTreeReader, TSelHandleDataSet, TPySelector, TSelectorEntries, and RooProofDriverSelector.

Definition at line 64 of file TSelector.h.

Referenced by TEventIterTree::GetNextEvent(), TEventIterTree::GetNextPacket(), and TTreePlayer::Process().

TSelector& TSelector::operator= ( const TSelector )
private
Bool_t TSelector::Process ( Long64_t  )
virtual
Bool_t TSelector::ProcessCut ( Long64_t  )
virtual

Reimplemented in TSelectorCint.

Definition at line 260 of file TSelector.cxx.

Referenced by TTreePlayer::Process().

void TSelector::ProcessFill ( Long64_t  )
virtual

Reimplemented in TSelectorDraw, and TSelectorCint.

Definition at line 277 of file TSelector.cxx.

Referenced by TTreePlayer::Process().

virtual void TSelector::ResetAbort ( )
inlinevirtual

Reimplemented in TSelectorCint.

Definition at line 81 of file TSelector.h.

Referenced by TSelectorDraw::Begin(), and TTreePlayer::Process().

virtual void TSelector::SetInputList ( TList input)
inlinevirtual
virtual void TSelector::SetObject ( TObject obj)
inlinevirtual
virtual void TSelector::SetOption ( const char *  option)
inlinevirtual
virtual void TSelector::SetStatus ( Long64_t  status)
inlinevirtual
virtual void TSelector::SlaveBegin ( TTree )
inlinevirtual
virtual void TSelector::SlaveTerminate ( void  )
inlinevirtual
virtual void TSelector::Terminate ( void  )
inlinevirtual
virtual int TSelector::Version ( ) const
inlinevirtual

Member Data Documentation

EAbort TSelector::fAbort
protected

Definition at line 46 of file TSelector.h.

Referenced by Abort(), GetAbort(), and ResetAbort().

TList* TSelector::fInput
protected
TObject* TSelector::fObject
protected
TString TSelector::fOption
protected
TSelectorList* TSelector::fOutput
protected
Long64_t TSelector::fStatus
protected

Definition at line 45 of file TSelector.h.

Referenced by GetStatus(), TSelEventGen::Process(), and SetStatus().

Collaboration diagram for TSelector:
[legend]

The documentation for this class was generated from the following files: