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Reference Guide
List of all members | Public Types | Public Member Functions | Static Public Member Functions | Protected Attributes | Private Member Functions | List of all members
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 33 of file TSelector.h.

Public Types

enum  EAbort { kContinue, kAbortProcess, kAbortFile }
 
- 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)
}
 

Public Member Functions

 TSelector ()
 Default selector ctor. More...
 
virtual ~TSelector ()
 Selector destructor. More...
 
virtual void Abort (const char *why, EAbort what=kAbortProcess)
 Abort processing. More...
 
virtual void Begin (TTree *)
 
virtual EAbort GetAbort () const
 
virtual Int_t GetEntry (Long64_t, Int_t=0)
 
virtual TListGetInputList () const
 
virtual const char * GetOption () const
 
virtual TListGetOutputList () const
 
virtual Long64_t GetStatus () const
 
virtual void ImportOutput (TList *output)
 Imports the content of 'output' in the internal output list. More...
 
virtual void Init (TTree *)
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
virtual Bool_t Process (Long64_t)
 
virtual Bool_t ProcessCut (Long64_t)
 
virtual void ProcessFill (Long64_t)
 
virtual void ResetAbort ()
 
virtual void SetInputList (TList *input)
 
virtual void SetObject (TObject *obj)
 
virtual void SetOption (const char *option)
 
virtual void SetStatus (Long64_t status)
 
virtual void SlaveBegin (TTree *)
 
virtual void SlaveTerminate ()
 
virtual void Terminate ()
 
virtual int Version () const
 
- 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 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 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 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 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 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...
 
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...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (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...
 

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 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 Attributes

EAbort fAbort
 Abort status. More...
 
TListfInput
 List of objects available during processing. More...
 
TObjectfObject
 ! Current object if processing object (vs. TTree) More...
 
TString fOption
 Option given to TTree::Process. More...
 
TSelectorListfOutput
 ! List of objects created during processing More...
 
Long64_t fStatus
 Selector status. More...
 

Private Member Functions

 TSelector (const TSelector &)
 
TSelectoroperator= (const TSelector &)
 

Additional Inherited Members

- 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 <TSelector.h>

Inheritance diagram for TSelector:
[legend]

Member Enumeration Documentation

Enumerator
kContinue 
kAbortProcess 
kAbortFile 

Definition at line 36 of file TSelector.h.

Constructor & Destructor Documentation

TSelector::TSelector ( const TSelector )
private
TSelector::TSelector ( )

Default selector ctor.

Definition at line 89 of file TSelector.cxx.

TSelector::~TSelector ( )
virtual

Selector destructor.

Definition at line 102 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 TPySelector.

Definition at line 116 of file TSelector.cxx.

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

Definition at line 75 of file TSelector.h.

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

Reimplemented in TSelectorEntries, TPySelector, and RooProofDriverSelector.

Definition at line 61 of file TSelector.h.

virtual TList* TSelector::GetInputList ( ) const
inlinevirtual

Definition at line 70 of file TSelector.h.

virtual const char* TSelector::GetOption ( ) const
inlinevirtual

Reimplemented from TObject.

Definition at line 59 of file TSelector.h.

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 142 of file TSelector.cxx.

virtual Long64_t TSelector::GetStatus ( ) const
inlinevirtual

Definition at line 60 of file TSelector.h.

void TSelector::ImportOutput ( TList output)
virtual

Imports the content of 'output' in the internal output list.

Existing content in the output list is discarded (unless found also in 'output'). In particular, if 'output' is nullptr or empty, reset the internal list. On return, the content of 'output' is cleared to avoid double deletion issues. (The caller is responsible of 'output' as container: its content is transferred under the selector ownership).

Definition at line 270 of file TSelector.cxx.

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 237 of file TSelector.cxx.

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, h1analysisTreeReader, TSelEventGen, TSelectorEntries, TSelHandleDataSet, TPySelector, and RooProofDriverSelector.

Definition at line 58 of file TSelector.h.

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

Definition at line 300 of file TSelector.cxx.

void TSelector::ProcessFill ( Long64_t  )
virtual

Reimplemented in TSelectorDraw.

Definition at line 317 of file TSelector.cxx.

virtual void TSelector::ResetAbort ( )
inlinevirtual

Definition at line 76 of file TSelector.h.

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

Definition at line 69 of file TSelector.h.

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

Abort status.

Definition at line 40 of file TSelector.h.

TList* TSelector::fInput
protected

List of objects available during processing.

Definition at line 43 of file TSelector.h.

TObject* TSelector::fObject
protected

! Current object if processing object (vs. TTree)

Definition at line 42 of file TSelector.h.

TString TSelector::fOption
protected

Option given to TTree::Process.

Definition at line 41 of file TSelector.h.

TSelectorList* TSelector::fOutput
protected

! List of objects created during processing

Definition at line 44 of file TSelector.h.

Long64_t TSelector::fStatus
protected

Selector status.

Definition at line 39 of file TSelector.h.

Libraries for TSelector:
[legend]

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