[Zope3-checkins] CVS: Zope3/src/zope/app/interfaces - context.py:1.2

[Jim Fulton]

Update of /cvs-repository/Zope3/src/zope/app/interfaces
In directory cvs.zope.org:/tmp/cvs-serv19924

Modified Files:
	context.py 
Log Message:
Added IWrapper (for zope generic wrappers) and IZopeContextWrapper.


=== Zope3/src/zope/app/interfaces/context.py 1.1 => 1.2 ===
--- Zope3/src/zope/app/interfaces/context.py:1.1	Sun Jun  1 13:22:10 2003
+++ Zope3/src/zope/app/interfaces/context.py	Mon Jun  2 14:44:06 2003
@@ -17,6 +17,7 @@
 """
 
 from zope.interface import Interface
+import zope.context.interfaces
 
 class IContextWrapper(Interface):
     """Wrapper API provided to applications."""
@@ -34,3 +35,31 @@
 
           Proxy(Wrapper(o1, parent, name='foo'), c1)
         """
+
+class IWrapper(zope.context.interfaces.IWrapper):
+    """Base Context wrapper
+
+    These objects extend context wrappers to:
+
+    - Prevent pickling
+
+    - To wrapper interface declarations.
+
+    """
+    
+    def __reduce__():
+        """Raises pickle.PicklingError if called (to prevent pickling)"""
+
+    def __reduce_ex__(proto):
+        """Raises pickle.PicklingError if called (to prevent pickling)"""
+
+class IZopeContextWrapper(IWrapper):
+    """Context wrappers that provide Zope framework support.
+
+    This is a marker interface used to provide extra functionality,
+    generally context-dependent, to make using objects in Zope more
+    convenient.
+
+    Decorators registered to provide IZopeContextWrapper will usually
+    implement additional interfaces used by Zope.
+    """