DerivationFramework::ExpressionParserHelper Class Reference

Helper class for using ExpressionParsing::ExpressionParser. More...

#include <ExpressionParserHelper.h>

Collaboration diagram for DerivationFramework::ExpressionParserHelper:

Public Member Functions
	ExpressionParserHelper (ServiceHandle< StoreGateSvc > &evtStore)
	Default constructor. More...
ExpressionParsing::ExpressionParser &	parser ()
	Return a reference to the expression parser. More...

Private Attributes
ExpressionParsing::SGxAODProxyLoader	m_xaodLoader
	The xAOD proxy loader. More...
ExpressionParsing::SGNTUPProxyLoader	m_ntupLoader
	The ntuple variable proxy loader. More...
ExpressionParsing::MultipleProxyLoader	m_proxyLoader
	The multiple proxy loader. More...
ExpressionParsing::ExpressionParser	m_parser
	The main expression parser object. More...

Detailed Description

Helper class for using ExpressionParsing::ExpressionParser.

Since the correct memory management for ExpressionParsing::ExpressionParser is not so trivial, instead of implementing that individually in every DF class that uses it, would not be a too good design. Instead each DF class should migrate to using this helper class to avoid memory leaks coming from the expression parsing code.

Author

Attila Krasznahorkay Attil.nosp@m.a.Kr.nosp@m.aszna.nosp@m.hork.nosp@m.ay@ce.nosp@m.rn.c.nosp@m.h

Definition at line 31 of file ExpressionParserHelper.h.

Constructor & Destructor Documentation

ExpressionParserHelper()

DerivationFramework::ExpressionParserHelper::ExpressionParserHelper ( ServiceHandle< StoreGateSvc > &  evtStore )

inline

Default constructor.

Definition at line 35 of file ExpressionParserHelper.h.

         : m_xaodLoader( evtStore ), m_ntupLoader( evtStore ),
       m_proxyLoader({&m_xaodLoader, &m_ntupLoader}), m_parser( &m_proxyLoader ) {
      }

Member Function Documentation

parser()

ExpressionParsing::ExpressionParser& DerivationFramework::ExpressionParserHelper::parser ( )

inline

Return a reference to the expression parser.

Definition at line 41 of file ExpressionParserHelper.h.

                                                  {
         return m_parser;
      }

Member Data Documentation

m_ntupLoader

ExpressionParsing::SGNTUPProxyLoader DerivationFramework::ExpressionParserHelper::m_ntupLoader

private

The ntuple variable proxy loader.

Definition at line 49 of file ExpressionParserHelper.h.

m_parser

ExpressionParsing::ExpressionParser DerivationFramework::ExpressionParserHelper::m_parser

private

The main expression parser object.

Definition at line 53 of file ExpressionParserHelper.h.

m_proxyLoader

ExpressionParsing::MultipleProxyLoader DerivationFramework::ExpressionParserHelper::m_proxyLoader

private

The multiple proxy loader.

Definition at line 51 of file ExpressionParserHelper.h.

m_xaodLoader

ExpressionParsing::SGxAODProxyLoader DerivationFramework::ExpressionParserHelper::m_xaodLoader

private

The xAOD proxy loader.

Definition at line 47 of file ExpressionParserHelper.h.

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

• ExpressionParserHelper.h