edm::Ptr< T > Class Template Reference

#include <DataFormats/Common/interface/Ptr.h>

Public Types
typedef unsigned long	key_type
typedef T	value_type

Public Member Functions
T const *	get () const
	Returns C++ pointer to the item. More...
bool	hasProductCache () const
ProductID	id () const
	Accessor for product ID. More...
bool	isAvailable () const
bool	isNonnull () const
	Checks for non-null. More...
bool	isNull () const
	Checks for null. More...
bool	isTransient () const
	Checks if this Ptr is transient (i.e. not persistable). More...
key_type	key () const
bool	operator! () const
	Checks for null. More...
T const &	operator* () const
	Dereference operator. More...
T const *	operator-> () const
	Member dereference operator. More...
void const *	product () const
EDProductGetter const *	productGetter () const
	Accessor for product getter. More...
template<typename C >
	Ptr (Handle< C > const &handle, key_type itemKey, bool=true)
template<typename C >
	Ptr (OrphanHandle< C > const &handle, key_type itemKey, bool=true)
template<typename C >
	Ptr (C const *iProduct, key_type iItemKey, bool=true)
template<typename C >
	Ptr (TestHandle< C > const &handle, key_type itemKey, bool=true)
	Ptr (ProductID const &productID, key_type itemKey, EDProductGetter const *prodGetter)
	Ptr (ProductID const &productID, T const *item, key_type item_key)
	Ptr (ProductID const &iId)
	Ptr ()
template<typename U >
	Ptr (Ptr< U > const &iOther, typename boost::enable_if_c< boost::is_base_of< T, U >::value >::type *=0)
template<typename U >
	Ptr (Ptr< U > const &iOther, typename boost::enable_if_c< boost::is_base_of< U, T >::value >::type *=0)
RefCore const &	refCore () const
	~Ptr ()
	Destructor. More...

Static Public Member Functions
static short	Class_Version ()

Private Member Functions
void	getData_ () const
template<typename C >
T const *	getItem_ (C const *product, key_type iKey)
	Ptr (T const *item, key_type item_key)

Private Attributes
RefCore	core_
key_type	key_

Friends
class	PtrVectorBase

Detailed Description

template<class T>
class edm::Ptr< T >

Description: Persistent 'pointer' to an item in a collection where the collection is in the edm::Event

Usage: <usage>

Definition at line 51 of file AssociativeIterator.h.

Member Typedef Documentation

template<class T>

typedef unsigned long edm::Ptr< T >::key_type

Definition at line 43 of file Ptr.h.

template<class T>

typedef T edm::Ptr< T >::value_type

Definition at line 44 of file Ptr.h.

Constructor & Destructor Documentation

template<class T>

template<typename C >

edm::Ptr< T >::Ptr ( Handle< C > const &  handle, key_type  itemKey, bool  = true  )

inline

Definition at line 48 of file Ptr.h.

                                                                 :
    core_(handle.id(), getItem_(handle.product(), itemKey), 0, false), key_(itemKey) {}

template<class T>

template<typename C >

edm::Ptr< T >::Ptr ( OrphanHandle< C > const &  handle, key_type  itemKey, bool  = true  )

inline

Definition at line 53 of file Ptr.h.

                                                                       :
    core_(handle.id(), getItem_(handle.product(), itemKey), 0, false), key_(itemKey) {}

template<class T>

template<typename C >

edm::Ptr< T >::Ptr ( C const *  iProduct, key_type  iItemKey, bool  = true  )

inline

Definition at line 68 of file Ptr.h.

                                                            :
    core_(ProductID(), iProduct != 0 ? getItem_(iProduct,iItemKey) : 0, 0, true),
    key_(iProduct != 0 ? iItemKey : key_traits<key_type>::value) {}

template<class T>

template<typename C >

edm::Ptr< T >::Ptr ( TestHandle< C > const &  handle, key_type  itemKey, bool  = true  )

inline

Definition at line 76 of file Ptr.h.

                                                                     :
    core_(handle.id(), getItem_(handle.product(), itemKey), 0, true), key_(itemKey) {}

template<class T>

edm::Ptr< T >::Ptr ( ProductID const &  productID, key_type  itemKey, EDProductGetter const *  prodGetter  )

inline

Constructor for those users who do not have a product handle, but have a pointer to a product getter (such as the EventPrincipal). prodGetter will ususally be a pointer to the event principal.

Definition at line 82 of file Ptr.h.

                                                                                         :
    core_(productID, 0, mustBeNonZero(prodGetter, "Ptr", productID), false), key_(itemKey) {
    }

template<class T>

edm::Ptr< T >::Ptr ( ProductID const &  productID, T const *  item, key_type  item_key  )

inline

Constructor for use in the various X::fillView(...) functions or for extracting a persistent Ptr from a PtrVector. It is an error (not diagnosable at compile- or run-time) to call this constructor with a pointer to a T unless the pointed-to T object is already in a collection of type C stored in the Event. The given ProductID must be the id of the collection in the Event.

Definition at line 93 of file Ptr.h.

                                                                      :
    core_(productID, item, 0, false),
    key_(item_key) {
    }

template<class T>

edm::Ptr< T >::Ptr ( ProductID const &  iId )

inlineexplicit

Constructor that creates an invalid ("null") Ptr that is associated with a given product (denoted by that product's ProductID).

Definition at line 102 of file Ptr.h.

                                       :
    core_(iId, 0, 0, false),
    key_(key_traits<key_type>::value)
    { }

template<class T>

edm::Ptr< T >::Ptr ( )

inline

Definition at line 107 of file Ptr.h.

         :
    core_(),
    key_(key_traits<key_type>::value)
    {}

template<class T>

template<typename U >

edm::Ptr< T >::Ptr ( Ptr< U > const &  iOther, typename boost::enable_if_c< boost::is_base_of< T, U >::value >::type *  = 0  )

inline

Definition at line 113 of file Ptr.h.

                                                                                              :
    core_(iOther.id(),
          (iOther.hasProductCache() ? static_cast<T const*>(iOther.get()): static_cast<T const*>(0)),
          iOther.productGetter(),
          iOther.isTransient()),
    key_(iOther.key()) {
    }

template<class T>

template<typename U >

edm::Ptr< T >::Ptr ( Ptr< U > const &  iOther, typename boost::enable_if_c< boost::is_base_of< U, T >::value >::type *  = 0  )

inlineexplicit

Definition at line 123 of file Ptr.h.

                                                                                              :
    core_(iOther.id(),
          dynamic_cast<T const*>(iOther.get()),
          0,
          iOther.isTransient()),
    key_(iOther.key()) {
    }

template<class T>

edm::Ptr< T >::~Ptr ( )

inline

Destructor.

Definition at line 132 of file Ptr.h.

{}

template<class T>

edm::Ptr< T >::Ptr ( T const *  item, key_type  item_key  )

inlineprivate

Constructor for extracting a transient Ptr from a PtrVector.

Definition at line 185 of file Ptr.h.

                                          :
    core_(ProductID(), item, 0, true),
    key_(item_key) {
    }

Member Function Documentation

template<class T>

static short edm::Ptr< T >::Class_Version ( )

inlinestatic

Definition at line 179 of file Ptr.h.

:
    //Ptr(Ptr const&); // stop default

template<class T>

T const* edm::Ptr< T >::get ( void  ) const

inline

Returns C++ pointer to the item.

Definition at line 143 of file Ptr.h.

Referenced by Options.Options::__getitem__(), betterConfigParser.BetterConfigParser::__updateDict(), pat::Jet::cacheCaloTowers(), pat::Jet::cachePFCandidates(), edm::FwdPtr< T >::get(), pat::EventHypothesis::getAs(), reco::CaloJet::getCaloConstituent(), pat::Jet::getCaloConstituent(), betterConfigParser.BetterConfigParser::getCompares(), MultipleAlgoIterator::getEt(), ReflectedIterator::getEt(), ParametrizedSubtractor::getEt(), MultipleAlgoIterator::getEta(), ReflectedIterator::getEta(), ParametrizedSubtractor::getEta(), betterConfigParser.BetterConfigParser::getGeneral(), reco::PFJet::getPFConstituent(), pat::Jet::getPFConstituent(), betterConfigParser.BetterConfigParser::getResultingSection(), PileUpSubtractor::ieta(), cms::SubEventGenJetProducer::inputTowers(), VirtualJetProducer::inputTowers(), PileUpSubtractor::iphi(), pat::MET::MET(), reco::PFClusterJet::pfCluster(), EcalDigiSelector::produce(), pat::Tau::Tau(), and reco::TrackJet::track().

                         {
      return isNull() ? 0 : this->operator->();
    }

template<class T>

void edm::Ptr< T >::getData_ ( ) const

inlineprivate

Definition at line 194 of file Ptr.h.

                          {
      if(!hasProductCache() && 0 != productGetter()) {
        void const* ad = 0;
        WrapperHolder prod = productGetter()->getIt(core_.id());
        if(!prod.isValid()) {
          core_.productNotFoundException(typeid(T));
        }
        prod.setPtr(typeid(T), key_, ad);
        core_.setProductPtr(ad);
      }
    }

template<typename T >

template<typename C >

T const * edm::Ptr< T >::getItem_ ( C const *  product, key_type  iKey  )

private

Definition at line 212 of file Ptr.h.

References edm::detail::GetProduct< COLLECTION >::address().

                                                            {
    assert (iProduct != 0);
    typename C::const_iterator it = iProduct->begin();
    std::advance(it,iKey);
    T const* address = detail::GetProduct<C>::address(it);
    return address;
  }

template<class T>

bool edm::Ptr< T >::hasProductCache ( ) const

inline

Definition at line 171 of file Ptr.h.

Referenced by edm::Ptr< reco::Muon >::getData_(), edm::FwdPtr< T >::hasProductCache(), and edm::PtrVector< Candidate >::push_back().

{ return 0 != core_.productPtr(); }

template<class T>

ProductID edm::Ptr< T >::id ( void  ) const

inline

Accessor for product ID.

Definition at line 164 of file Ptr.h.

Referenced by pat::PATUserDataMerger< ObjectType, Operation >::add(), pat::Jet::cacheCaloTowers(), pat::Jet::cachePFCandidates(), ConvertedPhotonProducer::cleanCollections(), pat::PATElectronProducer::fillElectron2(), reco::CaloJet::getCaloConstituent(), pat::Jet::getCaloConstituent(), reco::PFJet::getPFConstituent(), pat::Jet::getPFConstituent(), edm::FwdPtr< T >::id(), reco::operator<<(), pat::helper::RefHelper< T >::parentOrNull(), reco::Jet::print(), TopProjector< Top, Bottom >::ptrToAncestor(), pat::helper::RefHelper< T >::recursiveLookup(), ConvertedPhotonProducer::solveAmbiguity(), and metsig::SignPFSpecificAlgo::useOriginalPtrs().

{return core_.id();}

template<class T>

bool edm::Ptr< T >::isAvailable ( ) const

inline

Checks if collection is in memory or available in the event. No type checking is done.

Definition at line 158 of file Ptr.h.

Referenced by reco::CaloJet::getCaloConstituent(), reco::PFJet::getPFConstituent(), edm::FwdPtr< T >::isAvailable(), reco::PFClusterJet::pfCluster(), and reco::TrackJet::track().

{return core_.isAvailable();}

template<class T>

bool edm::Ptr< T >::isNonnull ( ) const

inline

Checks for non-null.

Definition at line 152 of file Ptr.h.

Referenced by reco::FlavorHistoryEvent::cache(), ConversionProducer::checkTrackPair(), reco::tau::RecoTauConstructor::convertToRef(), EGEnergyCorrector::CorrectedEnergyWithError(), edm::FwdPtr< T >::get(), reco::CaloJet::getCaloConstituent(), reco::PFJet::getPFConstituent(), reco::FlavorHistory::hasMatchedJet(), reco::FlavorHistory::hasParton(), reco::FlavorHistory::hasProgenitor(), reco::FlavorHistory::hasSister(), reco::FlavorHistory::hasSisterJet(), edm::FwdPtr< T >::id(), pat::helper::RefHelper< T >::isAncestorOf(), edm::FwdPtr< T >::isNonnull(), edm::Ptr< reco::Muon >::isNull(), edm::FwdPtr< T >::key(), edm::FwdPtr< T >::operator*(), edm::FwdPtr< T >::operator->(), reco::PFCandidate::overlap(), pat::helper::RefHelper< T >::parentOrSelf(), reco::PFClusterJet::pfCluster(), reco::Jet::print(), pat::PATJetProducer::produce(), pat::PATElectronProducer::produce(), pat::helper::RefHelper< T >::recursiveLookup(), edm::FwdPtr< T >::refCore(), and reco::TrackJet::track().

{return key_traits<key_type>::value != key_;}

template<class T>

bool edm::Ptr< T >::isNull ( ) const

inline

Checks for null.

Definition at line 148 of file Ptr.h.

Referenced by pat::helper::RefHelper< T >::ancestorOrSelf(), pat::helper::OverlapBySuperClusterSeed::fillOverlapsForItem(), edm::PtrVector< T >::fillView(), edm::Ptr< reco::Muon >::get(), edm::Ptr< reco::Muon >::operator!(), reco::PFCandidate::overlap(), WMuNuProducer::produce(), and metsig::SignPFSpecificAlgo::useOriginalPtrs().

{return !isNonnull(); }

template<class T>

bool edm::Ptr< T >::isTransient ( ) const

inline

Checks if this Ptr is transient (i.e. not persistable).

Definition at line 161 of file Ptr.h.

Referenced by edm::FwdPtr< T >::isTransient().

{return core_.isTransient();}

template<class T>

key_type edm::Ptr< T >::key ( ) const

inline

Definition at line 169 of file Ptr.h.

Referenced by pat::Jet::cacheCaloTowers(), pat::Jet::cachePFCandidates(), ConvertedPhotonProducer::cleanCollections(), reco::tau::RecoTauConstructor::convertToRef(), reco::CaloJet::getCaloConstituent(), pat::Jet::getCaloConstituent(), reco::PFJet::getPFConstituent(), pat::Jet::getPFConstituent(), reco::tau::isTauSignalPFCandidate(), edm::FwdPtr< T >::key(), reco::tau::RecoTauPhotonFilter::operator()(), reco::FlavorHistory::operator<(), operator<<(), reco::operator<<(), reco::FlavorHistory::operator==(), reco::FlavorHistory::operator>(), reco::RecoTauPiZero::print(), reco::Jet::print(), TriggerMatcherToHLTDebug::produce(), TopProjector< Top, Bottom >::ptrToAncestor(), edm::PtrVector< Candidate >::push_back(), and ConvertedPhotonProducer::solveAmbiguity().

{return key_;}

template<class T>

bool edm::Ptr< T >::operator! ( ) const

inline

Checks for null.

Definition at line 154 of file Ptr.h.

{return isNull();}

template<typename T >

T const & edm::Ptr< T >::operator* ( ) const

inline

Dereference operator.

Definition at line 224 of file Ptr.h.

References compareJSON::const.

                          {
    getData_();
    return *reinterpret_cast<T const*>(core_.productPtr());
  }

template<typename T >

T const * edm::Ptr< T >::operator-> ( ) const

inline

Member dereference operator.

Definition at line 233 of file Ptr.h.

References compareJSON::const.

Referenced by edm::Ptr< reco::Muon >::get().

                           {
    getData_();
    return reinterpret_cast<T const*>(core_.productPtr());
  }

template<class T>

void const* edm::Ptr< T >::product ( ) const

inline

Definition at line 176 of file Ptr.h.

{return 0;}

template<class T>

EDProductGetter const* edm::Ptr< T >::productGetter ( ) const

inline

Accessor for product getter.

Definition at line 167 of file Ptr.h.

Referenced by edm::Ptr< reco::Muon >::getData_(), and edm::FwdPtr< T >::productGetter().

{return core_.productGetter();}

template<class T>

RefCore const& edm::Ptr< T >::refCore ( ) const

inline

Definition at line 173 of file Ptr.h.

Referenced by edm::PtrVector< Candidate >::push_back(), and edm::FwdPtr< T >::refCore().

{return core_;}

Friends And Related Function Documentation

template<class T>

friend class PtrVectorBase

friend

Definition at line 40 of file Ptr.h.

Member Data Documentation

template<class T>

RefCore edm::Ptr< T >::core_

private

Definition at line 206 of file Ptr.h.

Referenced by edm::Ptr< reco::Muon >::getData_(), edm::Ptr< reco::Muon >::hasProductCache(), edm::Ptr< reco::Muon >::id(), edm::Ptr< reco::Muon >::isAvailable(), edm::Ptr< reco::Muon >::isTransient(), edm::Ptr< reco::Muon >::productGetter(), and edm::Ptr< reco::Muon >::refCore().

template<class T>

key_type edm::Ptr< T >::key_

private

Definition at line 207 of file Ptr.h.

Referenced by edm::Ptr< reco::Muon >::getData_(), edm::Ptr< reco::Muon >::isNonnull(), and edm::Ptr< reco::Muon >::key().