RootHistCnv::RRWNTupleCnv Class Reference

Row wise NTuple converter class definition. More...

#include <RRWNTupleCnv.h>

Inheritance diagram for RootHistCnv::RRWNTupleCnv:

Collaboration diagram for RootHistCnv::RRWNTupleCnv:

List of all members.

Public Member Functions
	RRWNTupleCnv (ISvcLocator *svc)
	Standard constructor.
virtual	~RRWNTupleCnv ()
	Standard destructor.
Static Public Member Functions
static const CLID &	classID ()
	Inquire class type.
Protected Member Functions
virtual StatusCode	load (TTree *tree, INTuple *&refpObject)
	Create the transient representation of an object.
virtual StatusCode	book (const std::string &desc, INTuple *pObject, TTree *&tree)
	Book the N tuple.
virtual StatusCode	writeData (TTree *rtree, INTuple *pObject)
	Write N tuple data.
virtual StatusCode	readData (TTree *rtree, INTuple *pObject, long ievt)
	Read N tuple data.
Friends
class	CnvFactory< RRWNTupleCnv >
	Creator needs access to constructor/destructor.

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Detailed Description

Row wise NTuple converter class definition.

Author:

Charles Leggett

Definition at line 19 of file RRWNTupleCnv.h.

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Constructor & Destructor Documentation

RootHistCnv::RRWNTupleCnv::RRWNTupleCnv

(

ISvcLocator *

svc )

[inline]

Standard constructor.

Definition at line 31 of file RRWNTupleCnv.h.

                                      : RNTupleCnv(svc, classID())    {
    }

virtual RootHistCnv::RRWNTupleCnv::~RRWNTupleCnv

(

)

[inline, virtual]

Standard destructor.

Definition at line 34 of file RRWNTupleCnv.h.

                              {
    }

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Member Function Documentation

StatusCode RootHistCnv::RRWNTupleCnv::book	(	const std::string &	desc,
		INTuple *	pObject,
		TTree *&	tree
	)		[protected, virtual]

Book the N tuple.

Implements RootHistCnv::RNTupleCnv.

Definition at line 20 of file RRWNTupleCnv.cpp.

{
  MsgStream log(msgSvc(), "RRWNTupleCnv");
  const INTuple::ItemContainer& itms = nt->items();
  // Book the tree
  rtree = new TTree(desc.c_str(),nt->title().c_str());
  // Add the branches
  for (size_t length = itms.size(), i = 0; i < length; i++ )    {
    const char* itm = itms[i]->name().c_str();
    std::string tag = itm;
    tag += rootVarType( itms[i]->type() );
    // add the branch
    log << MSG::INFO << "ID " << desc << ": added branch: "
        << itm << " / " << tag << endmsg;
    rtree->Branch(itm,const_cast<void*>(itms[i]->buffer()),tag.c_str());
  }
  log << MSG::INFO << "Booked TTree with ID:" << desc
      << " \"" << nt->title() << "\"" << endmsg;
  return StatusCode::SUCCESS;
}

static const CLID& RootHistCnv::RRWNTupleCnv::classID

(

)

[inline, static]

Inquire class type.

Definition at line 26 of file RRWNTupleCnv.h.

                                    {
      return CLID_RowWiseTuple;
    }

StatusCode RootHistCnv::RRWNTupleCnv::load	(	TTree *	tree,
		INTuple *&	refpObject
	)		[protected, virtual]

Create the transient representation of an object.

Implements RootHistCnv::RNTupleCnv.

Definition at line 72 of file RRWNTupleCnv.cpp.

{
  return StatusCode::FAILURE;
}

StatusCode RootHistCnv::RRWNTupleCnv::readData	(	TTree *	rtree,
		INTuple *	pObject,
		long	ievt
	)		[protected, virtual]

Read N tuple data.

Implements RootHistCnv::RNTupleCnv.

Definition at line 63 of file RRWNTupleCnv.cpp.

{
  return StatusCode::FAILURE;
}

StatusCode RootHistCnv::RRWNTupleCnv::writeData	(	TTree *	rtree,
		INTuple *	pObject
	)		[protected, virtual]

Write N tuple data.

Implements RootHistCnv::RNTupleCnv.

Definition at line 45 of file RRWNTupleCnv.cpp.

{
  if ( 0 != rtree )   {
    // Fill the tree;
    rtree->Fill();
    // Reset the NTuple
    nt->reset();
    return StatusCode::SUCCESS;
  }
  MsgStream log(msgSvc(), "RRWNTupleCnv");
  log << MSG::ERROR << "Attempt to write invalid N-tuple.";
  if ( nt != 0 ) log << nt->title();
  log << endmsg;
  return StatusCode::FAILURE;
}

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Friends And Related Function Documentation

friend class CnvFactory< RRWNTupleCnv > [friend]

Creator needs access to constructor/destructor.

Definition at line 22 of file RRWNTupleCnv.h.

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r1/RootHistCnv/src/RRWNTupleCnv.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r1/RootHistCnv/src/RRWNTupleCnv.cpp