RootHistCnv::RHistogramCnv< T, S, Q > Class Template Reference

Generic converter to save/read AIDA_ROOT histograms using ROOT. More...

#include <RHistogramCnv.h>

Inheritance diagram for RootHistCnv::RHistogramCnv< T, S, Q >:

Collaboration diagram for RootHistCnv::RHistogramCnv< T, S, Q >:

List of all members.

Classes
struct	TTH
Public Member Functions
virtual StatusCode	createObj (IOpaqueAddress *pAddr, DataObject *&refpObj)
	Create the transient representation of an object.
virtual StatusCode	updateObj (IOpaqueAddress *, DataObject *)
	Update the transient object from the other representation.
virtual TObject *	createPersistent (DataObject *pObj)
	Create the persistent representation of the histogram object.
	RHistogramCnv (ISvcLocator *svc)
	Standard constructor.
virtual	~RHistogramCnv ()
Static Public Member Functions
static const CLID &	classID ()
	Inquire class type.

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Detailed Description

template<typename T, typename S, typename Q>
class RootHistCnv::RHistogramCnv< T, S, Q >

Generic converter to save/read AIDA_ROOT histograms using ROOT.

This converter shortcuts the AIDA binding and takes advantage of the underlying implementation of transient histograms using ROOT.

Note: THxY::Copy cannot be used - only THxY::Add !

Author:

Markus Frank

Definition at line 30 of file RHistogramCnv.h.

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Constructor & Destructor Documentation

template<typename T , typename S , typename Q >

RootHistCnv::RHistogramCnv< T, S, Q >::RHistogramCnv

(

ISvcLocator *

svc )

[inline]

Standard constructor.

Definition at line 88 of file RHistogramCnv.h.

: RConverter(classID(), svc) {}

template<typename T , typename S , typename Q >

virtual RootHistCnv::RHistogramCnv< T, S, Q >::~RHistogramCnv

(

)

[inline, virtual]

Definition at line 89 of file RHistogramCnv.h.

{}

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Member Function Documentation

const CLID & RootHistCnv::RootHistCnvH3DCnv::classID

(

)

[static]

Inquire class type.

Definition at line 5 of file RHistogramCnv.cpp.

{

template<typename T , typename S , typename Q >

virtual StatusCode RootHistCnv::RHistogramCnv< T, S, Q >::createObj	(	IOpaqueAddress *	pAddr,
		DataObject *&	refpObj
	)		[inline, virtual]

Create the transient representation of an object.

Reimplemented from Converter.

Definition at line 36 of file RHistogramCnv.h.

                                                                              {
      refpObj = ROOT::Reflex::PluginService::CreateWithId<DataObject*>(objType());
      RootObjAddress *r = dynamic_cast<RootObjAddress*>(pAddr);
      Q* h = dynamic_cast<Q*>(refpObj);
      if ( r && h )   {
        // Need to flip representation .... clumsy for the time being, because
        // THXY constructor has no "generic" copy constructor
        std::auto_ptr<T> p(new T());
        S *s = dynamic_cast<S*>(r->tObj());
        if ( s && p.get() )  {
          TTH<S>* casted = (TTH<S>*)s;
          TArray* a = dynamic_cast<TArray*>(s);
          casted->CopyH(*p);
          if ( 0 != a )  {
            p->Set(a->GetSize());
            p->Reset();
            p->Add(s);
            h->adoptRepresentation(p.release());
            return StatusCode::SUCCESS;
          }
        }
      }
      return error("Cannot create histogram - invalid address.");
    }

template<typename T , typename S , typename Q >

virtual TObject* RootHistCnv::RHistogramCnv< T, S, Q >::createPersistent

(

DataObject *

pObj )

[inline, virtual]

Create the persistent representation of the histogram object.

Reimplemented from RootHistCnv::RConverter.

Definition at line 65 of file RHistogramCnv.h.

                                                          {
      Q* h = dynamic_cast<Q*>(pObj);
      if ( 0 != h ) {
        T *r = dynamic_cast<T*>(h->representation());
        if ( r )   {
          T* c = new T();
          TArray* a = dynamic_cast<TArray*>(r);
          ((TTH<S>*)r)->CopyH(*c);
          if ( 0 != a )  {
            c->Set(a->GetSize());
            c->Reset();
            c->Add(r);
            c->SetName(pObj->registry()->name().c_str()+1);
            return c;
          }
        }
      }
      error("Histogram object is invalid!");
      return 0;
    }

template<typename T , typename S , typename Q >

virtual StatusCode RootHistCnv::RHistogramCnv< T, S, Q >::updateObj	(	IOpaqueAddress *	,
		DataObject *
	)		[inline, virtual]

Update the transient object from the other representation.

Reimplemented from Converter.

Definition at line 61 of file RHistogramCnv.h.

                                                                                       {
      return StatusCode::SUCCESS;
    }

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

• /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/RootHistCnv/src/RHistogramCnv.h
• /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/RootHistCnv/src/RHistogramCnv.cpp