+ virtual void validators(const std::string& theFeatureID, const std::string& theAttrID,
+ std::list<ModelAPI_Validator*>& theValidators,
+ std::list<std::list<std::string> >& theArguments) const = 0;
+
+ /// Returns registered validator by its Id
+ virtual const ModelAPI_Validator* validator(const std::string& theID) const = 0;
+
+ /// Returns true if feature and all its attributes are valid.
+ virtual bool validate(const std::shared_ptr<ModelAPI_Feature>& theFeature) const = 0;
+
+ /// register that this attribute in feature is not obligatory for the feature execution
+ /// so, it is not needed for the standard validation mechanism
+ virtual void registerNotObligatory(std::string theFeature, std::string theAttribute) = 0;
+
+ /// Returns true if the attribute in feature is not obligatory for the feature execution
+ virtual bool isNotObligatory(std::string theFeature, std::string theAttribute) = 0;
+
+ /// register that this attribute conceals in the object browser
+ /// all referenced features after execution
+ virtual void registerConcealment(std::string theFeature, std::string theAttribute) = 0;
+
+ /// Returns true that it was registered that attribute conceals the referenced result
+ virtual bool isConcealed(std::string theFeature, std::string theAttribute) = 0;
+
+ /// Register the case-attribute: this attribute is checked only if its case is selected
+ virtual void registerCase(std::string theFeature, std::string theAttribute,
+ std::string theSwitchId, std::string theCaseId) = 0;