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#ifndef DataFormats_Provenance_Parentage_h
#define DataFormats_Provenance_Parentage_h
/*----------------------------------------------------------------------
Parentage: The products that were read in producing this product.
----------------------------------------------------------------------*/
#include "DataFormats/Provenance/interface/BranchID.h"
#include "DataFormats/Provenance/interface/ParentageID.h"
#include <iosfwd>
#include <vector>
/*
Parentage
definitions:
Product: The WrapperBase to which a provenance object is associated
Parents: The EDProducts used as input by the creator.
*/
namespace edm {
class Parentage {
public:
Parentage();
explicit Parentage(std::vector<BranchID> const& parents);
explicit Parentage(std::vector<BranchID>&& parents);
Parentage(Parentage const&) = default;
Parentage(Parentage&&) = default;
Parentage& operator=(Parentage const&) = default;
Parentage& operator=(Parentage&&) = default;
~Parentage() {}
ParentageID id() const;
void write(std::ostream& os) const;
std::vector<BranchID> const& parents() const { return parents_; }
std::vector<BranchID>& parentsForUpdate() { return parents_; }
void setParents(std::vector<BranchID> parents) { parents_ = std::move(parents); }
void swap(Parentage& other) { parents_.swap(other.parents_); }
void initializeTransients() { transient_.reset(); }
struct Transients {
Transients() {}
void reset() {}
};
private:
// The Branch IDs of the parents
std::vector<BranchID> parents_;
Transients transient_;
};
// Free swap function
inline void swap(Parentage& a, Parentage& b) { a.swap(b); }
inline std::ostream& operator<<(std::ostream& os, Parentage const& p) {
p.write(os);
return os;
}
// Only the 'salient attributes' are testing in equality comparison.
bool operator==(Parentage const& a, Parentage const& b);
inline bool operator!=(Parentage const& a, Parentage const& b) { return !(a == b); }
} // namespace edm
#endif
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