AliTreeFormulaF Class Reference

Helper class for AliTreePlayer - formatted string to query tree

Example usage

Example: Construct directory path

More...

#include <AliTreePlayer.h>

Inheritance diagram for AliTreeFormulaF:

Public Member Functions
	AliTreeFormulaF ()
	Default constructor. More...
	~AliTreeFormulaF ()
	AliTreeFormulaF (const char *name, const char *formula, TTree *tree, Int_t debug=0)
virtual Int_t	Compile (const char *expression="")
virtual char *	PrintValue (Int_t mode=0) const
virtual char *	PrintValue (Int_t mode, Int_t instance, const char *decform="9.9") const
virtual void	UpdateFormulaLeaves ()
virtual Int_t	GetNdata ()

Public Attributes
TObjArray *	fTextArray
TObjArray *	fFormatArray
	array of text inputs More...
TObjArray *	fFormulaArray
	array of format strings to draw More...
TString	fValue
	array of TFormulas More...
Int_t	fDebug
	current cache value of the formula More...

Detailed Description

Helper class for AliTreePlayer - formatted string to query tree

Example usage

Example: Construct directory path

AliExternalInfo info;TTree * tree = info.GetTree("QA.TPC","LHC15o","pass1");
formula = new AliTreeFormulaF("xxx","xxx/%d{year}/%d{period.GetName()}/%d{pass.GetName()}/%d{run}/xxx",tree);
tree->GetEntry(0);
formula->PrintValue(0,0,"")
Output: "xxx/2015/LHC15o/pass1/245683/xxx"

#### Example: Construct directory path

AliExternalInfo info;TTree * tree = info.GetTree("QA.TPC","LHC15o","pass1");
formula = new AliTreeFormulaF("xxx","<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=%d{run}\"\a>",tree);
tree->GetEntry(0);
formula->PrintValue(0,0,"")
Output: "<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=245683\"a>"

Example: Variable formatting

• Internally root formatting are used for the individual data variables. This formatting is different than standard printf formatting
• TODO - Implement own formatting also for variables -

  formula = new AliTreeFormulaF("xxx","<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=%2.1f{run}\"\a>",tree);
  Ouptut: "<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=245683.0\"a>"

  formula = new AliTreeFormulaF("xxx","<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=%0.5f{run}\"\a>",tree);
  Output: "<a href=\"https://alice-logbook.cern.ch/logbook/date_online.php?p_cont=rund&p_run=245683.00000\"a>"

  Author

  Marian Ivanov

Definition at line 74 of file AliTreePlayer.h.

Constructor & Destructor Documentation

AliTreeFormulaF::AliTreeFormulaF

(

)

Default constructor.

Definition at line 45 of file AliTreePlayer.cxx.

AliTreeFormulaF::~AliTreeFormulaF

(

)

TODO - check if not memory leak

Definition at line 62 of file AliTreePlayer.cxx.

AliTreeFormulaF::AliTreeFormulaF	(	const char *	name,
		const char *	formula,
		TTree *	tree,
		Int_t	debug = 0
	)

Parameters

name
formula
tree

Definition at line 52 of file AliTreePlayer.cxx.

Member Function Documentation

Int_t AliTreeFormulaF::Compile ( const char *  expression = "" )

virtual

Compile Formatted expression

Parameters

expression

Returns

TODO - Error handling - invalidate expression in case of the compilation error

TODO - add AliDebug

Definition at line 73 of file AliTreePlayer.cxx.

Referenced by AliTreeFormulaF().

virtual Int_t AliTreeFormulaF::GetNdata ( )

inlinevirtual

Definition at line 83 of file AliTreePlayer.h.

char * AliTreeFormulaF::PrintValue ( Int_t  mode = 0 ) const

virtual

Parameters

mode

Returns

Definition at line 117 of file AliTreePlayer.cxx.

char * AliTreeFormulaF::PrintValue ( Int_t  mode, Int_t  instance, const char *  decform = "9.9"  ) const

virtual

Overwrite TTreeFormula PrintValue

Parameters

mode
instance
decform

Returns

TODO - proper treatment of the 64bits/32 bits integer TODO - speed up evaluation caching information (e.g format type )

• get rid of the root formatting string and use sprintf formatting
• e.g using t

Definition at line 131 of file AliTreePlayer.cxx.

void AliTreeFormulaF::UpdateFormulaLeaves ( )

virtual

Definition at line 171 of file AliTreePlayer.cxx.

Member Data Documentation

Int_t AliTreeFormulaF::fDebug

current cache value of the formula

Definition at line 89 of file AliTreePlayer.h.

Referenced by Compile(), and PrintValue().

TObjArray* AliTreeFormulaF::fFormatArray

array of text inputs

Definition at line 86 of file AliTreePlayer.h.

Referenced by Compile(), PrintValue(), and ~AliTreeFormulaF().

TObjArray* AliTreeFormulaF::fFormulaArray

array of format strings to draw

Definition at line 87 of file AliTreePlayer.h.

Referenced by Compile(), PrintValue(), UpdateFormulaLeaves(), and ~AliTreeFormulaF().

TObjArray* AliTreeFormulaF::fTextArray

Definition at line 85 of file AliTreePlayer.h.

Referenced by Compile(), PrintValue(), and ~AliTreeFormulaF().

TString AliTreeFormulaF::fValue

mutable

array of TFormulas

Definition at line 88 of file AliTreePlayer.h.

Referenced by PrintValue().

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

• STAT/AliTreePlayer.h
• STAT/AliTreePlayer.cxx