Merge pull request #18 from dice-group/refactoring_sparql_mapping

Refactoring sparql mapping

owlapy/has.py

@@ -40,3 +40,24 @@ def operands(self) -> Iterable[_T]:
             The operands.
         """
         pass
+
+
+
+class HasFiller(Generic[_T], metaclass=ABCMeta):
+    """An interface to objects that have a filler.
+
+    Args:
+        _T: Filler type.
+    """
+    __slots__ = ()
+
+    @abstractmethod
+    def get_filler(self) -> _T:
+        """Gets the filler for this restriction. In the case of an object restriction this will be an individual, in
+        the case of a data restriction this will be a constant (data value). For quantified restriction this will be
+        a class expression or a data range.
+
+        Returns:
+            the value
+        """
+        pass

owlapy/iri.py

@@ -4,7 +4,7 @@
 from weakref import WeakKeyDictionary
 
 from owlapy import namespaces
-from owlapy.owlobject import OWLAnnotationSubject, OWLAnnotationValue
+from .owl_annotation import OWLAnnotationSubject, OWLAnnotationValue
 from owlapy.namespaces import Namespaces