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, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>
class art::ServiceHandle< T, SCOPE >

Definition at line 37 of file ServiceHandle.h.

Constructor & Destructor Documentation

template<typename T, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>

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

inline

Definition at line 44 of file ServiceHandle.h.

                        : instance {
      &ServiceRegistry::instance().get<std::remove_const_t<T>>()
    }
    {}
    catch (Exception const& x)
    {
      throw Exception(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, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>

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

inline

Definition at line 63 of file ServiceHandle.h.

    {
      return instance;
    }

template<typename T, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>

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

inline

Definition at line 60 of file ServiceHandle.h.

{ return *instance; }

template<typename T, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>

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

inline

Definition at line 58 of file ServiceHandle.h.

{ return instance; }

Member Data Documentation

template<typename T, ServiceScope SCOPE = detail::ServiceHelper<std::remove_const_t<T>>::scope_val>

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

private

Definition at line 69 of file ServiceHandle.h.

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

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