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

#include </builds/gaudi/Gaudi/GaudiAlg/include/GaudiAlg/GetData.h>

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

Public Types
typedef Getter::Type	Type
typedef Getter::return_type	return_type
	the actual return type More...

Public Member Functions
template<class COMMON >
return_type	operator() (const COMMON &common, IDataProviderSvc *service, std::string_view location, std::string_view location2) const
	the only one essential method More...

Private Types
typedef GetData< TYPE >	Getter
	the actual data getter More...

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..nosp@m.Bely.nosp@m.aev@n.nosp@m.ikhe.nosp@m.f.nl

Date

2008-07-22

Definition at line 393 of file GetData.h.

Member Typedef Documentation

Getter

template<class TYPE , class TYPE2 >

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

private

the actual data getter

Definition at line 397 of file GetData.h.

return_type

template<class TYPE , class TYPE2 >

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

the actual return type

Definition at line 403 of file GetData.h.

Type

template<class TYPE , class TYPE2 >

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

Definition at line 401 of file GetData.h.

Member Function Documentation

operator()()

template<class TYPE , class TYPE2 >

template<class COMMON >

return_type Gaudi::Utils::GetOrCreateData< TYPE, TYPE2 >::operator() ( const COMMON &  common, IDataProviderSvc *  service, std::string_view  location, std::string_view  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 414 of file GetData.h.

                                                               {
        SmartDataPtr<TYPE> obj( service, std::string{ location } );
        if ( !obj ) {
          auto o = std::make_unique<TYPE2>();
          auto r = o.get();
          common.put( service, std::move( o ), location2 );
          if ( common.msgLevel( MSG::DEBUG ) ) {
            common.debug() << "The object of type '" << System::typeinfoName( typeid( *r ) )
                           << "' has been created from TS at address '" << location2 << "'" << endmsg;
          }
          return r;
        }
        auto ret = obj.ptr();
        common.Assert( !( !ret ), std::string{ "get():: No valid data at '" }.append( location ).append( "\'" ) );
        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:

• GaudiAlg/include/GaudiAlg/GetData.h