virtual void clear() = 0;
/// Returns number of features in the list
- ///\param theWithEmpty if it is false, returns the number of not-empty referenced objects
- virtual int size(const bool theWithEmpty = true) const = 0;
+ virtual int size() const = 0;
/// Returns the list of features and attributes (if it is reference to the attribute)
virtual std::list<std::pair<ObjectPtr, AttributePtr> > list() = 0;