Base class for History Objects.
const CLID & clID() const override
Retrieve reference to class definition structure.
friend std::ostream & operator<<(std::ostream &lhs, const HistoryObj &rhs)
virtual std::ostream & dump(std::ostream &, bool isXML=false, int indent=0) const =0
virtual void indent(std::ostream &, int) const
virtual ~HistoryObj()=default
Interface for Versioned History Objects.