TemplateArchive Class Reference
[Modules]

Utility class that manages reading and writing template histograms to a ROOT file. More...

#include <TemplateArchive.h>

List of all members.

Public Member Functions
	TemplateArchive (const char *filename, const char *option)
	constructor to make separate template files
	TemplateArchive (TDirectory *dir)
	constructor to use a directory in an existing file
	~TemplateArchive ()
	Empty destructor.
const char *	GetName () const
TTemplate *	GetTemplate (const char *template_name)
	Gets the template histogram of the given name and returns it.
TTemplate *	GetTemplate (const IDs::channel &channel)
	Gets the template histogram of the given name and returns it.
void	SaveTemplate (const TTemplate *hTemplate)
	Takes the given histogram and saves it to the ROOT file.
Private Attributes
TFile *	fTemplateFile
	The ROOT file that contains the templates.
TDirectory *	fDirectory

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Detailed Description

Utility class that manages reading and writing template histograms to a ROOT file.

Author:

Andrew Edmonds

Ben Krikler

Definition at line 18 of file TemplateArchive.h.

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Constructor & Destructor Documentation

TemplateArchive::TemplateArchive	(	const char *	filename,
		const char *	option
	)

constructor to make separate template files

Given a file name and a standard ROOT TFile option (e.g. "READ", "RECREATE" etc.) and opens the ROOT file ready for reading and writing

Definition at line 8 of file TemplateArchive.cpp.

References fDirectory, and fTemplateFile.

                                                                         {
  TDirectory* tmp=gDirectory;
  fTemplateFile = new TFile(filename, option);
  fDirectory=TDirectory::CurrentDirectory();
  tmp->cd();
}

TemplateArchive::TemplateArchive

(

TDirectory *

dir

)

constructor to use a directory in an existing file

Definition at line 15 of file TemplateArchive.cpp.

References fDirectory.

                                               :fTemplateFile(NULL){
  fDirectory=dir;
}

TemplateArchive::~TemplateArchive

(

)

Empty destructor.

Definition at line 19 of file TemplateArchive.cpp.

References fTemplateFile.

                                  {
  if(fTemplateFile) fTemplateFile->Close();
}

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Member Function Documentation

const char* TemplateArchive::GetName

(

)

const [inline]

Definition at line 44 of file TemplateArchive.h.

References fTemplateFile.

Referenced by TemplateFitAPGenerator::TemplateFitAPGenerator().

{return fTemplateFile?fTemplateFile->GetName(): "";}

TTemplate * TemplateArchive::GetTemplate

(

const IDs::channel &

channel

)

Gets the template histogram of the given name and returns it.

Definition at line 23 of file TemplateArchive.cpp.

References GetTemplate(), and TTemplate::MakeName().

                                                            {
  return GetTemplate(TTemplate::MakeName(ch).c_str());
}

TTemplate * TemplateArchive::GetTemplate

(

const char *

template_name

)

Gets the template histogram of the given name and returns it.

Definition at line 29 of file TemplateArchive.cpp.

References fDirectory, and fTemplateFile.

Referenced by GetTemplate(), TemplateConvolveAPGenerator::TemplateConvolveAPGenerator(), and TemplateFitAPGenerator::TemplateFitAPGenerator().

                                                                 {

  TTemplate* hTemplate = NULL;
  fDirectory->GetObject(template_name, hTemplate);
  if(!hTemplate) {
   cout<< "TemplateArchive::GetTemplate: ERROR: Unable to find a template called '"
       <<template_name<<"' in file '"<<fTemplateFile->GetName()<<"'"<<endl;
  }
  return hTemplate;
}

void TemplateArchive::SaveTemplate

(

const TTemplate *

hTemplate

)

Takes the given histogram and saves it to the ROOT file.

Definition at line 42 of file TemplateArchive.cpp.

References fDirectory.

Referenced by TemplateCreator::AfterLastEntry().

                                                             {

  TDirectory* oldDir = TDirectory::CurrentDirectory(); // should be the directory we were already in
  if (hTemplate) {
    fDirectory->cd();
    hTemplate->Write();
  }
  oldDir->cd(); // go back to the old directory
}

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Member Data Documentation

TDirectory* TemplateArchive::fDirectory [private]

Definition at line 24 of file TemplateArchive.h.

Referenced by GetTemplate(), SaveTemplate(), and TemplateArchive().

TFile* TemplateArchive::fTemplateFile [private]

The ROOT file that contains the templates.

Definition at line 23 of file TemplateArchive.h.

Referenced by GetName(), GetTemplate(), TemplateArchive(), and ~TemplateArchive().

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

• rootana/src/TAP_generators/template_fitting/TemplateArchive.h
• rootana/src/TAP_generators/template_fitting/TemplateArchive.cpp