TGo4TreeSource Class Reference

Raw event source which reads entries from a root TTree. More...

#include <TGo4TreeSource.h>

Inheritance diagram for TGo4TreeSource:

Public Member Functions
	TGo4TreeSource ()
	TGo4TreeSource (const char *name)
	TGo4TreeSource (TGo4TreeSourceParameter *par)
virtual	~TGo4TreeSource ()
Bool_t	BuildEvent (TGo4EventElement *dest) override
	Fill the destination event dest from the tree.
Public Member Functions inherited from TGo4EventSource
	TGo4EventSource ()
	TGo4EventSource (const char *name)
virtual	~TGo4EventSource ()
virtual Bool_t	CheckEventClass (TClass *cl)
	Check that event class is supported by event source.
void	Clear (Option_t *opt="") override
virtual const char *	GetActiveName () const
	Access to the name of the currently active source.
Int_t	GetCreateStatus () const
	Status value of server/file open.
const char *	GetErrMess () const
	Status/ error message of the last event.
Int_t	GetEventStatus () const
	Status of the last event.

Private Member Functions
Int_t	Open ()

Private Attributes
TBranch *	fxBranch {nullptr}
	The branch representing our source.
TGo4MainTree *	fxSingletonTree {nullptr}
	Reference to external tree singleton wrapper instance.
TTree *	fxTree {nullptr}
	Reference to external root tree singleton.

Additional Inherited Members
Static Public Attributes inherited from TGo4EventSource
static const Int_t	fgiTIMEOUTDEFAULT =1
	Default timeout in seconds for event input.
Protected Types inherited from TGo4EventSource
enum	{ fguTXTLEN = 256 }
	text length More...
Protected Member Functions inherited from TGo4EventSource
void	SetCreateStatus (Int_t status)
	Status value of event source init (file/server open).
void	SetErrMess (const char *txt)
	To be used for modification of the message by the event source implementation.
void	SetEventStatus (Int_t status)
	Status of the last event.
void	ThrowEOF (Int_t creastat, Int_t errstat, const char *message,...)
	EOF thrower.
void	ThrowError (Int_t creastat, Int_t errstat, const char *message,...)
	Exception thrower.

Detailed Description

Raw event source which reads entries from a root TTree.

We use one single tree for all generations of events, which is kept by the go4 maintree class.

Author

J. Adamczewski

Since

1/2001

Definition at line 33 of file TGo4TreeSource.h.

Constructor & Destructor Documentation

TGo4TreeSource() [1/3]

TGo4TreeSource::TGo4TreeSource

(

)

Definition at line 40 of file TGo4TreeSource.cxx.

References TGo4EventSource::TGo4EventSource(), and GO4TRACE.

TGo4TreeSource() [2/3]

TGo4TreeSource::TGo4TreeSource

(

const char *

name

)

Definition at line 25 of file TGo4TreeSource.cxx.

References TGo4EventSource::TGo4EventSource(), GO4TRACE, and Open().

~TGo4TreeSource()

TGo4TreeSource::~TGo4TreeSource ( )

virtual

Definition at line 46 of file TGo4TreeSource.cxx.

References fxBranch, fxSingletonTree, and GO4TRACE.

TGo4TreeSource() [3/3]

TGo4TreeSource::TGo4TreeSource

(

TGo4TreeSourceParameter *

par

)

Definition at line 32 of file TGo4TreeSource.cxx.

References TGo4EventSource::TGo4EventSource(), GO4TRACE, and Open().

Member Function Documentation

BuildEvent()

Bool_t TGo4TreeSource::BuildEvent ( TGo4EventElement * dest )

overridevirtual

Fill the destination event dest from the tree.

If end of tree is reached, the current event counter is reset and a kFALSE value is returned.

Reimplemented from TGo4EventSource.

Definition at line 83 of file TGo4TreeSource.cxx.

References fxBranch, fxSingletonTree, GO4TRACE, and TGo4EventSource::ThrowError().

Open()

Int_t TGo4TreeSource::Open ( )

private

Definition at line 63 of file TGo4TreeSource.cxx.

References TGo4Log::Debug(), fxBranch, fxSingletonTree, fxTree, GO4TRACE, TGo4MainTree::Instance(), and TGo4EventSource::ThrowError().

Referenced by TGo4TreeSource(), and TGo4TreeSource().

Field Documentation

fxBranch

TBranch* TGo4TreeSource::fxBranch {nullptr}

private

The branch representing our source.

Definition at line 59 of file TGo4TreeSource.h.

Referenced by ~TGo4TreeSource(), BuildEvent(), and Open().

fxSingletonTree

TGo4MainTree* TGo4TreeSource::fxSingletonTree {nullptr}

private

Reference to external tree singleton wrapper instance.

Is initialized once at the start and used to access the singleton member functions.

Definition at line 53 of file TGo4TreeSource.h.

Referenced by ~TGo4TreeSource(), BuildEvent(), and Open().

fxTree

TTree* TGo4TreeSource::fxTree {nullptr}

private

Reference to external root tree singleton.

Definition at line 56 of file TGo4TreeSource.h.

Referenced by Open().

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

• Go4EventServer/TGo4TreeSource.h
• Go4EventServer/TGo4TreeSource.cxx