TGo4EventElement Class Reference

#include <TGo4EventElement.h>

Inheritance diagram for TGo4EventElement:

Public Member Functions
	TGo4EventElement ()
	TGo4EventElement (const char *name)
	TGo4EventElement (const char *aName, const char *aTitle, Short_t aBaseCat=0)
virtual	~TGo4EventElement (void)
void	SetValid (Bool_t on)
Bool_t	IsValid () const
void	SetEventSource (TGo4EventSource *src)
void	SetParent (TGo4EventElement *par)
TGo4EventElement *	GetParent () const
TGo4EventSource *	GetEventSource () const
Bool_t	CheckEventSource (const char *classname)
virtual Int_t	Fill ()
virtual Int_t	Init ()
virtual void	PrintEvent ()
virtual void	makeBranch (TBranch *parent)
virtual void	deactivate ()
virtual void	activate ()
virtual void	Clear (Option_t *t="")
virtual void	clearAll (Int_t)
virtual Bool_t	isComposed ()
virtual Short_t	getId ()
virtual void	setDebug (Bool_t debug)
virtual TGo4EventElement &	operator[] (Int_t)
virtual void	Print (Option_t *option="") const
virtual void	synchronizeWithTree (TTree *tree, TGo4EventElement **var_ptr=0)
virtual Int_t	activateBranch (TBranch *branch, Int_t index=0, TGo4EventElement **var_ptr=0)

Protected Attributes
Short_t	fIdentifier
Bool_t	fDebug

Private Attributes
Bool_t	fbIsValid
TGo4EventElement *	fxParent
TGo4EventSource *	fxEventSource

Detailed Description

Definition at line 36 of file TGo4EventElement.h.

Constructor & Destructor Documentation

TGo4EventElement::TGo4EventElement

(

)

Definition at line 23 of file TGo4EventElement.cxx.

                                   :
   TNamed("Go4Element","This is a Go4 EventElement"),
   fbIsValid(kTRUE),
   fxParent(0),
   fxEventSource(0),
   fIdentifier(-1),
   fDebug(kFALSE)
{
}

TGo4EventElement::TGo4EventElement

(

const char *

name

)

Definition at line 33 of file TGo4EventElement.cxx.

                                                   :
   TNamed(name,"This is a Go4 EventElement"),
   fbIsValid(kTRUE),
   fxParent(0),
   fxEventSource(0),
   fIdentifier(-1),
   fDebug(kFALSE)
{
}

TGo4EventElement::TGo4EventElement	(	const char *	aName,
		const char *	aTitle,
		Short_t	aBaseCat = 0
	)

Definition at line 43 of file TGo4EventElement.cxx.

                                                                                          :
   TNamed(aName,aTitle),
   fbIsValid(kTRUE),
   fxParent(0),
   fxEventSource(0),
   fIdentifier(aBaseCat),
   fDebug(kFALSE)
{
}

TGo4EventElement::~TGo4EventElement ( void  )

virtual

Definition at line 53 of file TGo4EventElement.cxx.

{
}

Member Function Documentation

void TGo4EventElement::activate ( )

virtual

Definition at line 168 of file TGo4EventElement.cxx.

References gTree, name, and TString.

{
   TString name=GetName();
#if ROOT_VERSION_CODE <= ROOT_VERSION(5,34,19)
   name+=".";
   gTree->SetBranchStatus(name.Data(), 1);
   name+="*";
   gTree->SetBranchStatus(name.Data(), 1);
#else
   std::cout << "-W- Could not activate() element %s in this ROOT Version, do not use!" << name.Data() << std::endl;
#endif
}

Int_t TGo4EventElement::activateBranch ( TBranch *  branch, Int_t  index = 0, TGo4EventElement **  var_ptr = 0  )

virtual

THIS WAS OLD CODE FROM TGo4FileSource

void TGo4EventElement::synchronizeWithTree(TTree *tree, TGo4EventElement** var_ptr)

TString topname; Bool_t masterbranch=kFALSE; TString branchName = dest->GetName(); if(!fxBranchName.Contains(".")) { fxBranchName+="."; // for master branch, add dot. Subbranch names with dot separators do not get final dot masterbranch=kTRUE; } TObjArray* blist = tree->GetListOfBranches(); TBranch* topb = (TBranch*) blist->At(0); if(topb) { topname = topb->GetName(); cout <<"Activating top branch "<<topname.Data() << endl; tree->SetBranchAddress(topname.Data(),(void**) var_ptr); topb->SetAddress(&fxTopEvent); // this will not set address of possible cloned tree. we use the set address of the tree } tree->SetBranchStatus("*",0); // note: only deactivate subleafs after address of top branch is set! tree->SetBranchStatus(topname.Data(),1); // required to process any of the subbranches! TString wildbranch = branchName; wildbranch += "*"; tree->SetBranchStatus(wildbranch.Data(),1); cout <<"Build event activates: "<<wildbranch.Data() << endl; wildbranch = branchName; if(!masterbranch) wildbranch+="."; wildbranch+="*"; tree->SetBranchStatus(wildbranch.Data(),1); cout <<"Build event activates: "<<wildbranch.Data() << endl; fbActivated = kTRUE;

Definition at line 137 of file TGo4EventElement.cxx.

References tree, and TString.

Referenced by synchronizeWithTree().

{
   if (branch==0) return 0;

   TString cad = branch->GetName();

   TTree* tree = branch->GetTree();

   if (var_ptr!=0)
      tree->SetBranchAddress(cad.Data(), (void**)var_ptr);

   tree->SetBranchStatus(cad.Data(), 1);
   cad+="*";
   tree->SetBranchStatus(cad.Data(), 1);

   return 0;
}

Bool_t TGo4EventElement::CheckEventSource

(

const char *

classname

)

Check if event source is valid. Tests the pointer for zero, and if not zero, compares classname of the event source with given string. To be used from the Fill method and from the analysis method init event classes.

Definition at line 57 of file TGo4EventElement.cxx.

{
   return kFALSE;
}

void TGo4EventElement::Clear ( Option_t *  t = "" )

virtual

Reimplemented in TProtoUnpackEvent.

Definition at line 181 of file TGo4EventElement.cxx.

Referenced by Fill(), and Init().

{
}

virtual void TGo4EventElement::clearAll ( Int_t  )

inlinevirtual

Definition at line 91 of file TGo4EventElement.h.

{}

void TGo4EventElement::deactivate ( )

virtual

Definition at line 155 of file TGo4EventElement.cxx.

References gTree, name, and TString.

{
   TString name = GetName();
#if ROOT_VERSION_CODE <= ROOT_VERSION(5,34,19)
   name+=".";
   gTree->SetBranchStatus(name.Data(), 0);
   name+="*";
   gTree->SetBranchStatus(name.Data(), 0);
#else
   std::cout << "-W- Could not deactivate() event element %s in this ROOT Version, do not use!" << name.Data() << std::endl;
#endif
}

Int_t TGo4EventElement::Fill ( )

virtual

Method called by the event owner (analysis step) to fill the event element from the set event source. Event source can be the source of the analysis step (if this is a raw event) or the event processor (if this is a reduced event). Fill method has to specify how the event source writes to the members of this event structure. Either by calling methods of the source (like myevent.a=fxEventSource->GetA(); etc ), or by direct copy to the member (like fxEventSource->FillMemoryAt(&myevent.a);)

Definition at line 197 of file TGo4EventElement.cxx.

References Clear(), fxEventSource, res, and SetValid().

{
   Clear();

   if (fxEventSource==0) { SetValid(kFALSE); return 1; }


   Int_t res =0; 
   SetValid(kFALSE);

   return res==0 ? 1 : res;
}

TGo4EventSource* TGo4EventElement::GetEventSource ( ) const

inline

Definition at line 60 of file TGo4EventElement.h.

References fxEventSource.

{ return fxEventSource; }

virtual Short_t TGo4EventElement::getId ( )

inlinevirtual

Definition at line 93 of file TGo4EventElement.h.

References fIdentifier.

{ return fIdentifier;}

TGo4EventElement* TGo4EventElement::GetParent ( ) const

inline

Definition at line 58 of file TGo4EventElement.h.

References fxParent.

{ return fxParent; }

Int_t TGo4EventElement::Init ( )

virtual

Method called on initialization of event classes. User might check the correct type of the eventsource here and assign this to a subclass pointer.

Definition at line 185 of file TGo4EventElement.cxx.

References Clear(), fxEventSource, res, and SetValid().

{
   Int_t res(0);
   Clear();
   SetValid(kTRUE);
   if (fxEventSource) {
   } else {
      res = 1;
   }
   return res;
}

virtual Bool_t TGo4EventElement::isComposed ( )

inlinevirtual

Definition at line 92 of file TGo4EventElement.h.

{ return kFALSE; }

Bool_t TGo4EventElement::IsValid ( ) const

inline

Returns the valid state of this event.

Definition at line 50 of file TGo4EventElement.h.

References fbIsValid.

{ return fbIsValid; }

void TGo4EventElement::makeBranch ( TBranch *  parent )

virtual

Definition at line 71 of file TGo4EventElement.cxx.

{
   // method for recursive branching algorithm

}

virtual TGo4EventElement& TGo4EventElement::operator[] ( Int_t  )

inlinevirtual

Definition at line 95 of file TGo4EventElement.h.

{ return *this; }

void TGo4EventElement::Print ( Option_t *  option = "" ) const

virtual

Definition at line 66 of file TGo4EventElement.cxx.

References PrintEvent().

{
   ((TGo4EventElement*)this) -> PrintEvent();
}

void TGo4EventElement::PrintEvent ( )

virtual

Method prints content of the event

Definition at line 62 of file TGo4EventElement.cxx.

Referenced by Print().

{
}

virtual void TGo4EventElement::setDebug ( Bool_t  debug )

inlinevirtual

Definition at line 94 of file TGo4EventElement.h.

References fDebug.

{ fDebug=debug;}

void TGo4EventElement::SetEventSource ( TGo4EventSource *  src )

inline

Setter for the event source that is currently used by the Fill method.

Definition at line 53 of file TGo4EventElement.h.

References fxEventSource.

{ fxEventSource=src; }

void TGo4EventElement::SetParent ( TGo4EventElement *  par )

inline

Setter for the parent event structure reference.

Definition at line 56 of file TGo4EventElement.h.

References fxParent, and par.

{ fxParent=par; }

void TGo4EventElement::SetValid ( Bool_t  on )

inline

Switches the valid state of this event.

Definition at line 47 of file TGo4EventElement.h.

References fbIsValid.

Referenced by Fill(), and Init().

{ fbIsValid=on; }

void TGo4EventElement::synchronizeWithTree ( TTree *  tree, TGo4EventElement **  var_ptr = 0  )

virtual

Use this method to map event structure with the Tree branch(es)

Definition at line 77 of file TGo4EventElement.cxx.

References activateBranch(), and TString.

{

   if (tree==0) return;

   TBranch* topb = 0;
   TString searchname = GetName();
   if (searchname.Length()>0) {
      searchname += ".";
      topb = tree->FindBranch(searchname.Data());
   }

   // if no appropriate branches found, use first branch for the event
   // TODO: should we check class name of the branch?
   if (topb==0) topb = (TBranch*) tree->GetListOfBranches()->First();

   Int_t index = tree->GetListOfBranches()->IndexOf(topb);

   // FIXME SL: should we activate other branches, reading not working when all branches disabled in the beginning
   // note: only deactivate subleafs _after_ address of top branch is set!
   // tree->SetBranchStatus("*",0);

   activateBranch(topb, index, var_ptr);
}

Member Data Documentation

Bool_t TGo4EventElement::fbIsValid

private

Indicates if this event is valid or not. If false, the event store will not write the event.

Definition at line 108 of file TGo4EventElement.h.

Referenced by IsValid(), and SetValid().

Bool_t TGo4EventElement::fDebug

protected

Definition at line 124 of file TGo4EventElement.h.

Referenced by setDebug().

Short_t TGo4EventElement::fIdentifier

protected

Definition at line 123 of file TGo4EventElement.h.

Referenced by getId().

TGo4EventSource* TGo4EventElement::fxEventSource

private

The external event source instance which is used to fill this event structure from the raw event. Lazy initialization as zero; the pointer is set by analysis only for top level Event Elements with subevents. Might be exchanged on the fly to switch the unpack of different subevents into the same event structure. 0..1

Definition at line 120 of file TGo4EventElement.h.

Referenced by Fill(), GetEventSource(), Init(), and SetEventSource().

TGo4EventElement* TGo4EventElement::fxParent

private

The higher level event element that owns this instance 1

Definition at line 112 of file TGo4EventElement.h.

Referenced by GetParent(), and SetParent().

---

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

• TGo4EventElement.h
• TGo4EventElement.cxx