Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 > Struct Template Reference

Helper structure for implementation of "getOrCreate"-functions for GaudiCommon<BASE>. More...

#include <GetData.h>

Inheritance diagram for Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >:

[legend]

List of all members.

Public Types
typedef Getter::Type	Type
typedef Getter::return_type	return_type
	the actual return type
Public Member Functions
template<class COMMON>
return_type	operator() (const COMMON &common, IDataProviderSvc *service, const std::string &location, const std::string &location2) const
	the only one essential method
Private Types
typedef GetData< TYPE >	Getter
	the actual data getter

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Detailed Description

template<class TYPE, class TYPE2>
struct Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >

Helper structure for implementation of "getOrCreate"-functions for GaudiCommon<BASE>.

Author:

Vanya BELYAEV Ivan.Belyaev@nikhef.nl

Date:

2008-07-22

Definition at line 360 of file GetData.h.

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Member Typedef Documentation

template<class TYPE, class TYPE2>

typedef GetData<TYPE> Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >::Getter [private]

the actual data getter

Definition at line 365 of file GetData.h.

template<class TYPE, class TYPE2>

typedef Getter::Type Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >::Type

Definition at line 369 of file GetData.h.

template<class TYPE, class TYPE2>

typedef Getter::return_type Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >::return_type

the actual return type

Definition at line 371 of file GetData.h.

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Member Function Documentation

template<class TYPE, class TYPE2>

template<class COMMON>

return_type Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >::operator()	(	const COMMON &	common,
		IDataProviderSvc *	service,
		const std::string &	location,
		const std::string &	location2
	)			const [inline]

the only one essential method

Parameters:

	common	the actual "worker"
	service	pointer to Data Provider Service
	location	location of objects in TES

Returns:

the data

check the data

Definition at line 383 of file GetData.h.

      {
        SmartDataPtr<TYPE> obj ( service , location ) ;
        if ( !obj ) 
        {
          TYPE2* o = new TYPE2() ;
          common.put ( service , o , location2 ) ;
          if ( common.msgLevel ( MSG::DEBUG ) )
          { common.debug() << "The object of type '"
                           << System::typeinfoName(typeid(*o))
                           << "' has been created from TS at address '"
                           << location2 << "'" << endmsg ; }
          return_type _o = o ;
          return _o ;
        }
        return_type ret = obj ;
        common.Assert ( !(!ret) , "get():: No valid data at '" + location + "'"  ) ;
        if ( common.msgLevel ( MSG::DEBUG ) )
        { common.debug() << "The object of type '"
                         << System::typeinfoName(typeid(*ret))
                         << "' has been retrieved from TS at address '"
                         << location << "'" << endmsg ; }
        // return *VALID* data 
        return ret ;
        // ====================================================================
      }

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r8/GaudiAlg/GaudiAlg/GetData.h