- //! Returns the index of feature in the group (zero based)
- MODELAPI_EXPORT virtual int featureIndex(boost::shared_ptr<ModelAPI_Feature> theFeature) = 0;
-
- ///! Returns the vector of groups already added to the document
- MODELAPI_EXPORT virtual const std::vector<std::string>& getGroups() const = 0;
+ ///! Adds a new sub-document by the identifier, or returns existing one if it is already exist
+ virtual std::shared_ptr<ModelAPI_Document> subDocument(std::string theDocID) = 0;
+
+ ///! Returns the id of the document
+ virtual const std::string& id() const = 0;
+
+ //! Returns the object in the group by the index (started from zero)
+ //! \param theGroupID group that contains an object
+ //! \param theIndex zero-based index of feature in the group
+ //! \param theHidden if it is true, it counts also the features that are not in tree
+ virtual std::shared_ptr<ModelAPI_Object> object(const std::string& theGroupID,
+ const int theIndex,
+ const bool theHidden = false) = 0;
+
+ //! Returns the first found object in the group by the object name
+ //! \param theGroupID group that contains an object
+ //! \param theName name of the object to search
+ //! \returns null if such object is not found
+ virtual std::shared_ptr<ModelAPI_Object> objectByName(const std::string& theGroupID,
+ const std::string& theName) = 0;
+
+ //! Returns the number of objects in the group of objects
+ //! If theHidden is true, it counts also the features that are not in tree
+ virtual int size(const std::string& theGroupID, const bool theHidden = false) = 0;