Add a new SDL storage API function 'is_active()'

[ric-plt/sdlpy.git] / ricsdl-package / ricsdl / backend / dbbackend_abc.py

diff --git a/ricsdl-package/ricsdl/backend/dbbackend_abc.py b/ricsdl-package/ricsdl/backend/dbbackend_abc.py
index 08f4600..4f31554 100644 (file)
--- a/ricsdl-package/ricsdl/backend/dbbackend_abc.py
+++ b/ricsdl-package/ricsdl/backend/dbbackend_abc.py
@@ -28,6 +28,11 @@ from abc import ABC, abstractmethod
 class DbBackendAbc(ABC):
     """An abstract Shared Data Layer (SDL) class providing database backend interface."""
 
+    @abstractmethod
+    def is_connected(self):
+        """Test database backend connection."""
+        pass
+
     @abstractmethod
     def close(self):
         """Close database backend connection."""