art::DeferredProductGetter Class Reference

#include "DeferredProductGetter.h"

Inheritance diagram for art::DeferredProductGetter:

Public Member Functions
	DeferredProductGetter (cet::exempt_ptr< Principal const > groupFinder, ProductID pid)
bool	isReady () const override
EDProduct const *	getIt () const override
EDProduct const *	anyProduct () const override
EDProduct const *	uniqueProduct () const override
EDProduct const *	uniqueProduct (TypeID const &) const override
bool	resolveProduct (TypeID const &) const override
bool	resolveProductIfAvailable (TypeID const &) const override

Private Member Functions
cet::exempt_ptr< EDProductGetter const >	resolveGetter_ () const
cet::exempt_ptr< EDProductGetter const >	maybeResolveGetter_ () const

Private Attributes
cet::exempt_ptr< Principal const >	groupFinder_
ProductID const	pid_
cet::exempt_ptr< EDProductGetter const >	realGetter_

Detailed Description

Definition at line 10 of file DeferredProductGetter.h.

Constructor & Destructor Documentation

art::DeferredProductGetter::DeferredProductGetter	(	cet::exempt_ptr< Principal const >	groupFinder,
		ProductID	pid
	)

Definition at line 7 of file DeferredProductGetter.cc.

  : groupFinder_(groupFinder), pid_(pid), realGetter_()
{}

Member Function Documentation

art::EDProduct const * art::DeferredProductGetter::anyProduct ( ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 20 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->anyProduct();
}

art::EDProduct const * art::DeferredProductGetter::getIt ( ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 14 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->getIt();
}

bool art::DeferredProductGetter::isReady ( ) const

inlineoverridevirtual

Implements art::EDProductGetter.

Definition at line 33 of file DeferredProductGetter.h.

References maybeResolveGetter_(), and realGetter_.

{
  return (maybeResolveGetter_() != nullptr) && realGetter_->isReady();
}

cet::exempt_ptr< art::EDProductGetter const > art::DeferredProductGetter::maybeResolveGetter_ ( ) const

private

Definition at line 63 of file DeferredProductGetter.cc.

References groupFinder_, pid_, and realGetter_.

Referenced by isReady(), and resolveGetter_().

{
  if (realGetter_) {
    return realGetter_;
  } else if ((realGetter_ =
                groupFinder_->getByProductID(pid_).result().get())) {
    return realGetter_;
  } else {
    return cet::exempt_ptr<EDProductGetter const>();
  }
}

cet::exempt_ptr< art::EDProductGetter const > art::DeferredProductGetter::resolveGetter_ ( ) const

private

Definition at line 50 of file DeferredProductGetter.cc.

References maybeResolveGetter_(), pid_, and art::errors::ProductNotFound.

Referenced by anyProduct(), getIt(), resolveProduct(), resolveProductIfAvailable(), and uniqueProduct().

{
  auto result = maybeResolveGetter_();
  if (!result) {
    throw Exception(errors::ProductNotFound)
      << "Product corresponding to ProductID " << pid_
      << " not found: possible attempt to resolve a Ptr before its product has "
         "been committed.\n";
  }
  return result;
}

bool art::DeferredProductGetter::resolveProduct ( TypeID const &  tid ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 38 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->resolveProduct(tid);
}

bool art::DeferredProductGetter::resolveProductIfAvailable ( TypeID const &  tid ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 44 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->resolveProductIfAvailable(tid);
}

art::EDProduct const * art::DeferredProductGetter::uniqueProduct ( ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 26 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->uniqueProduct();
}

art::EDProduct const * art::DeferredProductGetter::uniqueProduct ( TypeID const &  tid ) const

overridevirtual

Implements art::EDProductGetter.

Definition at line 32 of file DeferredProductGetter.cc.

References resolveGetter_().

{
  return resolveGetter_()->uniqueProduct(tid);
}

Member Data Documentation

cet::exempt_ptr<Principal const> art::DeferredProductGetter::groupFinder_

private

Definition at line 27 of file DeferredProductGetter.h.

Referenced by maybeResolveGetter_().

ProductID const art::DeferredProductGetter::pid_

private

Definition at line 28 of file DeferredProductGetter.h.

Referenced by maybeResolveGetter_(), and resolveGetter_().

cet::exempt_ptr<EDProductGetter const> art::DeferredProductGetter::realGetter_

mutableprivate

Definition at line 29 of file DeferredProductGetter.h.

Referenced by isReady(), and maybeResolveGetter_().

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

• art/Framework/Principal/DeferredProductGetter.h
• art/Framework/Principal/DeferredProductGetter.cc