Update Factory providers delegation docs

docs/providers/factory.rst

@@ -105,20 +105,20 @@ Example:
 Factory providers delegation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-``Factory`` provider could be delegated to any other provider via any kind of 
-injection. Saying in other words, delegation of factories - is a way to inject
-factories themselves, instead of results of their calls. 
+``di.Factory`` provider could be delegated to any other provider via any kind 
+of injection. As it was mentioned earlier, if ``di.Factory`` is injectable 
+value, it will be called every time when injection is done. ``di.Factory`` 
+delegation is performed by wrapping delegated ``di.Factory`` into special 
+provider type - ``di.Delegate``, that just returns wrapped ``di.Factory``. 
+Saying in other words, delegation of factories - is a way to inject factories 
+themselves, instead of results of their calls. 
 
-As it was mentioned earlier, ``Injection`` calls ``Factory`` if ``Factory`` is
-injectable value. ``Factory`` delegation is performed by wrapping delegated 
-``Factory`` into special provider type -  ``Delegate``, that just returns 
-``Factory`` itself.
 
 Actually, there are two ways of creating factory delegates:
 
-+ ``Delegate(Factory(...))`` - obviously wrapping factory into ``Delegate`` 
-  provider.
-+ ``Factory(...).delegate()`` - calling factory ``delegate()`` method, that 
++ ``di.Delegate(di.Factory(...))`` - obviously wrapping factory into 
+  ``di.Delegate`` provider.
++ ``di.Factory(...).delegate()`` - calling factory ``delegate()`` method, that 
   returns delegate wrapper for current factory.
 
 Example:

examples/providers/factory_delegation.py

@@ -1,7 +1,6 @@
-"""`Factory` providers delegation example."""
+"""`di.Factory` providers delegation example."""
 
-from dependency_injector.providers import Factory
-from dependency_injector.injections import KwArg
+import dependency_injector as di
 
 
 class User(object):
@@ -11,7 +10,7 @@ class User(object):
     def __init__(self, photos_factory):
         """Initializer.
 
-        :param photos_factory: (dependency_injector.providers.Factory) -> Photo
+        :param photos_factory: (di.Factory) -> Photo
         """
         self.photos_factory = photos_factory
         self._main_photo = None
@@ -30,9 +29,9 @@ class Photo(object):
     """Example class Photo."""
 
 # User and Photo factories:
-photos_factory = Factory(Photo)
-users_factory = Factory(User,
-                        KwArg('photos_factory', photos_factory.delegate()))
+photos_factory = di.Factory(Photo)
+users_factory = di.Factory(User,
+                           photos_factory=di.Delegate(photos_factory))
 
 # Creating several User objects:
 user1 = users_factory()