WriterRoot Class Reference

Detailed Description

GenEvent I/O serialization for root files.

If HepMC was compiled with path to ROOT available, this class can be used for root writing in the same manner as with HepMC::WriterAscii class.

Examples

convert_example.cc, and rootIO_example_write.cc.

Definition at line 35 of file WriterRoot.h.

#include <WriterRoot.h>

Inheritance diagram for WriterRoot:

Collaboration diagram for WriterRoot:

Public Member Functions
	WriterRoot (const std::string &filename, shared_ptr< GenRunInfo > run=shared_ptr< GenRunInfo >())
	Default constructor.
void	write_event (const GenEvent &evt)
	Write event to file.
void	write_run_info ()
	Write the GenRunInfo object to file.
void	close ()
	Close file stream.
bool	failed ()
	Get stream error state flag.
void	set_run_info (shared_ptr< GenRunInfo > run)
	Set the global GenRunInfo object.
shared_ptr< GenRunInfo >	run_info () const
	Get the global GenRunInfo object.

Private Attributes
TFile *	m_file
	File handler.
int	m_events_count
	Events count. Needed to generate unique object name.
shared_ptr< GenRunInfo >	m_run_info
	The global GenRunInfo object.

Constructor & Destructor Documentation

WriterRoot()

WriterRoot	(	const std::string &	filename,
		shared_ptr< GenRunInfo >	run = shared_ptr<GenRunInfo>() )

Default constructor.

Warning

If file exists, it will be overwritten

Definition at line 19 of file WriterRoot.cc.

References ERROR, m_events_count, m_file, Writer::run_info(), Writer::set_run_info(), and write_run_info().

Member Function Documentation

close()

void close ( )

virtual

Close file stream.

Implements Writer.

Examples

rootIO_example_write.cc.

Definition at line 73 of file WriterRoot.cc.

References m_file.

failed()

bool failed ( )

virtual

Get stream error state flag.

Implements Writer.

Definition at line 77 of file WriterRoot.cc.

References m_file.

run_info()

shared_ptr< GenRunInfo > run_info ( ) const

inlineinherited

Get the global GenRunInfo object.

Definition at line 44 of file Writer.h.

References m_run_info.

set_run_info()

void set_run_info ( shared_ptr< GenRunInfo > run )

inlineinherited

Set the global GenRunInfo object.

Definition at line 39 of file Writer.h.

References m_run_info.

write_event()

void write_event ( const GenEvent & evt )

virtual

Write event to file.

Parameters

[in]

evt

Event to be serialized

Implements Writer.

Examples

rootIO_example_write.cc.

Definition at line 32 of file WriterRoot.cc.

References ERROR, m_events_count, m_file, GenEvent::run_info(), Writer::run_info(), Writer::set_run_info(), WARNING, GenEvent::write_data(), and write_run_info().

write_run_info()

void write_run_info

(

)

Write the GenRunInfo object to file.

Definition at line 59 of file WriterRoot.cc.

References ERROR, m_file, and Writer::run_info().

Field Documentation

m_events_count

int m_events_count

private

Events count. Needed to generate unique object name.

Definition at line 70 of file WriterRoot.h.

m_file

TFile* m_file

private

File handler.

Definition at line 69 of file WriterRoot.h.

m_run_info

shared_ptr<GenRunInfo> m_run_info

privateinherited

The global GenRunInfo object.

Definition at line 51 of file Writer.h.

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

• WriterRoot.h
• WriterRoot.cc