art::ServiceHandle< T, SCOPE > Class Template Reference

#include "ServiceHandle.h"

Public Member Functions
	ServiceHandle ()
T *	operator-> () const
T &	operator* () const
T *	get () const

Private Attributes
T *	instance

Detailed Description

template<typename T, art::ServiceScope SCOPE>
class art::ServiceHandle< T, SCOPE >

Definition at line 39 of file ServiceHandle.h.

Constructor & Destructor Documentation

template<typename T, art::ServiceScope SCOPE>

art::ServiceHandle< T, SCOPE >::ServiceHandle ( )

inline

Definition at line 53 of file ServiceHandle.h.

                      : instance {
    &ServiceRegistry::instance().get<std::remove_const_t<T>>()
  }
  {
  }
  catch (art::Exception const& x)
  {
    throw art::Exception(art::errors::ServiceNotFound)
      << "Unable to create ServiceHandle.\n"
      << "Perhaps the FHiCL configuration does not specify the necessary "
         "service?\n"
      << "The class of the service is noted below...\n"
      << x;
  }

Member Function Documentation

template<typename T, art::ServiceScope SCOPE>

T* art::ServiceHandle< T, SCOPE >::get ( ) const

inline

Definition at line 71 of file ServiceHandle.h.

Referenced by reco_tool::CandHitDerivative::configure(), reco_tool::CandHitMorphological::configure(), art::MemoryTracker::MemoryTracker(), art::RootOutputFile::RootOutputFile(), and art::TimeTracker::TimeTracker().

  {
    return instance;
  }

template<typename T, art::ServiceScope SCOPE>

T& art::ServiceHandle< T, SCOPE >::operator* ( ) const

inline

Definition at line 69 of file ServiceHandle.h.

{ return *instance; }

template<typename T, art::ServiceScope SCOPE>

T* art::ServiceHandle< T, SCOPE >::operator-> ( ) const

inline

Definition at line 68 of file ServiceHandle.h.

{ return instance; }

Member Data Documentation

template<typename T, art::ServiceScope SCOPE>

T* art::ServiceHandle< T, SCOPE >::instance

private

Definition at line 77 of file ServiceHandle.h.

Referenced by art::ServiceHandle< art::FileTransfer >::get(), art::ServiceHandle< T, art::ServiceScope::PER_SCHEDULE >::get(), art::ServiceHandle< art::FileTransfer >::operator*(), art::ServiceHandle< T, art::ServiceScope::PER_SCHEDULE >::operator*(), art::ServiceHandle< art::FileTransfer >::operator->(), and art::ServiceHandle< T, art::ServiceScope::PER_SCHEDULE >::operator->().

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

• art/Framework/Services/Registry/ServiceHandle.h