+
+ /// Request for initialization of data model of the feature: adding all attributes
+ virtual void initAttributes() = 0;
+
+ /// Computes or recomputes the results
+ virtual void execute() = 0;
+
+ /// returns the current results of the feature
+ MODELAPI_EXPORT const std::list<boost::shared_ptr<ModelAPI_Result> >& results();
+ /// returns the first result in the list or NULL reference
+ MODELAPI_EXPORT boost::shared_ptr<ModelAPI_Result> firstResult();
+ /// sets the alone result
+ MODELAPI_EXPORT void setResult(const boost::shared_ptr<ModelAPI_Result>& theResult);
+ /// sets the result by index (zero based), results before this must be set before
+ MODELAPI_EXPORT void setResult(const boost::shared_ptr<ModelAPI_Result>& theResult,
+ const int theIndex);
+ /// removes the result from the feature
+ MODELAPI_EXPORT void removeResult(const boost::shared_ptr<ModelAPI_Result>& theResult);
+ /// removes all results from the feature
+ MODELAPI_EXPORT void eraseResults();
+ /// removes all fields from this feature: results, data, etc
+ MODELAPI_EXPORT virtual void erase();
+
+ /// Returns true if result is persistent (stored in document) and on undo-redo, save-open
+ /// it is not needed to recompute it.
+ virtual bool isPersistentResult() {return true;}
+
+ /// Returns true if this feature must not be created: this is just an action
+ /// that is not stored in the features history and data model (like "delete part").
+ virtual bool isAction()
+ {
+ return false;
+ }
+
+ /// Must return document where the new feature must be added to
+ /// By default it is current document
+ MODELAPI_EXPORT virtual boost::shared_ptr<ModelAPI_Document> documentToAdd();
+
+ /// To virtually destroy the fields of successors
+ MODELAPI_EXPORT virtual ~ModelAPI_Feature();
+
+ MODELAPI_EXPORT static boost::shared_ptr<ModelAPI_Feature> feature(ObjectPtr theObject);
+