art::ServiceRegistry Class Reference

#include "ServiceRegistry.h"

Public Member Functions
	~ServiceRegistry () noexcept
	ServiceRegistry (ServiceRegistry const &)=delete
	ServiceRegistry (ServiceRegistry &&)=delete
ServiceRegistry &	operator= (ServiceRegistry const &)=delete
ServiceRegistry &	operator= (ServiceRegistry &&)=delete

Static Public Member Functions
template<typename T >
static bool	isAvailable ()

Private Member Functions
	ServiceRegistry () noexcept
void	setManager (ServicesManager *)
template<typename T >
T &	get () const

Static Private Member Functions
static ServiceRegistry &	instance () noexcept

Private Attributes
cet::exempt_ptr< ServicesManager >	manager_ {nullptr}

Friends
class	ServicesManager
template<typename T , art::ServiceScope >
class	ServiceHandle

Detailed Description

Definition at line 12 of file ServiceRegistry.h.

Constructor & Destructor Documentation

art::ServiceRegistry::~ServiceRegistry ( )

defaultnoexcept

art::ServiceRegistry::ServiceRegistry ( ServiceRegistry const &  )

delete

art::ServiceRegistry::ServiceRegistry ( ServiceRegistry &&  )

delete

art::ServiceRegistry::ServiceRegistry ( )

privatedefaultnoexcept

Referenced by isAvailable().

Member Function Documentation

template<typename T >

T& art::ServiceRegistry::get ( ) const

inlineprivate

Definition at line 46 of file ServiceRegistry.h.

References manager_, and art::errors::ServiceNotFound.

Referenced by art::ServiceHandle< art::FileTransfer >::ServiceHandle().

    {
      if (!manager_) {
        throw Exception(errors::ServiceNotFound, "Service")
          << " no ServiceRegistry has been set for this thread";
      }
      return manager_->get<T>();
    }

ServiceRegistry & art::ServiceRegistry::instance ( )

staticprivatenoexcept

Definition at line 10 of file ServiceRegistry.cc.

Referenced by isAvailable(), art::ServiceHandle< art::FileTransfer >::ServiceHandle(), and art::ServicesManager::ServicesManager().

  {
    static ServiceRegistry me;
    return me;
  }

template<typename T >

static bool art::ServiceRegistry::isAvailable ( )

inlinestatic

Definition at line 29 of file ServiceRegistry.h.

References instance(), manager_, art::errors::ServiceNotFound, ServiceRegistry(), and setManager().

    {
      if (auto& mgr = instance().manager_) {
        return mgr->isAvailable<T>();
      }
      throw Exception(errors::ServiceNotFound, "Service")
        << " no ServiceRegistry has been set for this thread";
    }

ServiceRegistry& art::ServiceRegistry::operator= ( ServiceRegistry const &  )

delete

ServiceRegistry& art::ServiceRegistry::operator= ( ServiceRegistry &&  )

delete

void art::ServiceRegistry::setManager ( ServicesManager *  mgr )

private

Definition at line 17 of file ServiceRegistry.cc.

References manager_.

Referenced by isAvailable(), and art::ServicesManager::ServicesManager().

  {
    manager_ = mgr;
  }

Friends And Related Function Documentation

template<typename T , art::ServiceScope >

friend class ServiceHandle

friend

Definition at line 18 of file ServiceRegistry.h.

friend class ServicesManager

friend

Definition at line 15 of file ServiceRegistry.h.

Member Data Documentation

cet::exempt_ptr<ServicesManager> art::ServiceRegistry::manager_ {nullptr}

private

Definition at line 55 of file ServiceRegistry.h.

Referenced by get(), isAvailable(), and setManager().

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

• art/Framework/Services/Registry/ServiceRegistry.h
• art/Framework/Services/Registry/ServiceRegistry.cc