art::Sampled< T > Class Template Reference

#include <fwd.h>

Public Types
using	const_iterator = typename container_t::const_iterator

Public Member Functions
	Sampled ()=default
	Sampled (InputTag const &tag) noexcept(false)
bool	empty () const
InputTag const &	originalInputTag () const
cet::exempt_ptr< T const >	get (std::string const &dataset, RunID const &id) const
cet::exempt_ptr< T const >	get (std::string const &dataset, SubRunID const &id) const
void	insert (std::string const &dataset, SubRunID const &id, T &&value)

Static Public Member Functions
static short	Class_Version ()

Private Types
using	container_t = std::map< std::string, std::map< SubRunID, T >>

Private Attributes
InputTag	tag_ {}
container_t	products_ {}

Detailed Description

template<typename T>
class art::Sampled< T >

Definition at line 38 of file fwd.h.

Member Typedef Documentation

template<typename T>

using art::Sampled< T >::const_iterator = typename container_t::const_iterator

Definition at line 75 of file Sampled.h.

template<typename T>

using art::Sampled< T >::container_t = std::map<std::string, std::map<SubRunID, T>>

private

Definition at line 72 of file Sampled.h.

Constructor & Destructor Documentation

template<typename T>

art::Sampled< T >::Sampled ( )

default

template<typename T >

art::Sampled< T >::Sampled ( InputTag const &  tag )

explicitnoexcept

Definition at line 117 of file Sampled.h.

                                                         : tag_{tag}
  {
    // Due to Ptr reseeding issues, Assns or Ptr types (or
    // containers thereof) are not supported.  This checking cannot
    // be done at compile time because creating a Wrapper requires a
    // Sampled instantiation, even if that instantiation will never
    // be used.
    auto const type_name = cet::demangle_symbol(typeid(*this).name());
    if (type_name.find("art::Assns") != std::string::npos ||
        type_name.find("art::Ptr") != std::string::npos) {
      throw Exception{errors::LogicError}
        << "An attempt was made to create the type "
        << cet::demangle_symbol(typeid(T).name())
        << ".\n"
           "This is not allowed.  Please contact artists@fnal.gov for "
           "guidance.";
    }
  }

Member Function Documentation

template<typename T>

static short art::Sampled< T >::Class_Version ( )

inlinestatic

Definition at line 99 of file Sampled.h.

    {
      return 10;
    }

template<typename T >

bool art::Sampled< T >::empty

(

)

const

Definition at line 145 of file Sampled.h.

  {
    return products_.empty();
  }

template<typename T >

cet::exempt_ptr< T const > art::Sampled< T >::get	(	std::string const &	dataset,
		RunID const &	id
	)		const

Definition at line 152 of file Sampled.h.

  {
    return get(dataset, SubRunID::invalidSubRun(id));
  }

template<typename T >

cet::exempt_ptr< T const > art::Sampled< T >::get	(	std::string const &	dataset,
		SubRunID const &	id
	)		const

Definition at line 159 of file Sampled.h.

  {
    cet::exempt_ptr<T const> result{nullptr};
    auto dataset_it = products_.find(dataset);
    if (dataset_it == products_.cend()) {
      return result;
    }

    auto const& ids = dataset_it->second;
    auto id_it = ids.find(id);
    if (id_it == ids.cend()) {
      return result;
    }

    return cet::make_exempt_ptr(&id_it->second);
  }

template<typename T>

void art::Sampled< T >::insert ( std::string const &  dataset, SubRunID const &  id, T &&  value  )

inline

Definition at line 92 of file Sampled.h.

    {
      products_[dataset].emplace(id, std::forward<T>(value));
    }

template<typename T >

InputTag const & art::Sampled< T >::originalInputTag

(

)

const

Definition at line 138 of file Sampled.h.

  {
    return tag_;
  }

Member Data Documentation

template<typename T>

container_t art::Sampled< T >::products_ {}

private

Definition at line 106 of file Sampled.h.

template<typename T>

InputTag art::Sampled< T >::tag_ {}

private

Definition at line 105 of file Sampled.h.

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

• canvas/canvas/Persistency/Common/fwd.h
• canvas/canvas/Persistency/Common/Sampled.h