DataFormats_MuonReco::dictionary::edm::HandleExceptionFactory Class Reference

#include "DataFormats/Common/interface/HandleExceptionFactory.h"

Public Member Functions
	HandleExceptionFactory ()
virtual std::shared_ptr < cms::Exception >	make () const =0
virtual	~HandleExceptionFactory ()

Detailed Description

Description: Creates an cms::Exception for an edm::Handle

Usage: When a data product is requested which is not available, the edm::Handle<> will hold an edm::HandleExceptionFactory which is used to manufacture the exception which will be thrown if the Handle is dereferenced. Using a factory over having the cms::Exception already in the Handle is faster for the case where code calls Handle::isValid before dereferencing.

Definition at line 41 of file classes.h.

Constructor & Destructor Documentation

DataFormats_MuonReco::dictionary::edm::HandleExceptionFactory::HandleExceptionFactory

(

)

virtual DataFormats_MuonReco::dictionary::edm::HandleExceptionFactory::~HandleExceptionFactory ( )

virtual

Member Function Documentation

virtual std::shared_ptr<cms::Exception> DataFormats_MuonReco::dictionary::edm::HandleExceptionFactory::make ( ) const

pure virtual