added better error message for a request to instantiate an abstract c…

…lass.
andoco · Aug 9, 2010 · 23b6289 · 23b6289
1 parent e543727
commit 23b6289
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/source/MongoDB/Configuration/Mapping/Model/ClassMapBase.cs b/source/MongoDB/Configuration/Mapping/Model/ClassMapBase.cs
@@ -145,6 +145,9 @@ public object CreateInstance()
             if(!_hasProtectedOrPublicConstructor)
                 throw new MissingMethodException("No public or protected constructor found on type " + ClassType.FullName);
 
+            if (ClassType.IsAbstract)
+                throw new MongoException("Unable to create an instance of an abstract class.");
+
             //TODO: figure out how to support custom activators...
             var instance = Activator.CreateInstance(ClassType, true);