[Zope-Checkins] CVS: Zope3/lib/python/Zope/ComponentArchitecture - IToIRegistry.py:1.1.4.12

[Jim Fulton]

Update of /cvs-repository/Zope3/lib/python/Zope/ComponentArchitecture
In directory cvs.zope.org:/tmp/cvs-serv15128

Modified Files:
      Tag: Zope-3x-branch
	IToIRegistry.py 
Log Message:
Added getAll and getAllForObject to 



=== Zope3/lib/python/Zope/ComponentArchitecture/IToIRegistry.py 1.1.4.11 => 1.1.4.12 ===
         return None
 
+    def getAll(self, ob_interface, provide, result=None, seen=None):
+        """Get all components that match an interface
+        
+        Finds all registered components that provides the given interface.
+        Returns None if not found.
+        """
+        if result is None:
+            result = []
+        if seen is None:
+            seen = {}
+
+        if ob_interface in seen:
+            return result
+        
+        c = self._find(ob_interface, provide)
+        if c is not None:
+            result.append(c[1])
+        seen[ob_interface] = 1
+
+        bases = getattr(ob_interface, '__bases__', ())
+        if bases:
+            # 'require' might be a subinterface of a required interface
+            # for a registered component.
+            for base in bases:
+                self.getAll(base, provide, result, seen)
+
+        return result
+
     def getForObject(self, ob, provided):
         for i in objectImplements(ob):
             c=self.get(i, provided)
             if c is not None: return c
         return self.get(None, provided)
 
+    def getAllForObject(self, ob, provided):
+        """Get all components that match an object's interfaces
+        
+        Finds all registered components that provides the given interface.
+        Returns None if not found.
+        """
+        result = []
+        seen = {}
+        for i in objectImplements(ob):
+            self.getAll(i, provided, result, seen)
+
+        return self.getAll(None, provided, result, seen)
+    
+
 class IRegistry(IToIRegistry):
     """Registry for components that provide an interface but down require one
 
@@ -142,10 +184,12 @@
         self._registerAll(require, None, data, None)
 
     def getForObject(self, ob):
-        for i in objectImplements(ob):
-            c=self.get(i, None)
-            if c is not None: return c
-        return self.get(None, None)
+        return IToIRegistry.getForObject(self, ob, None)
+
+    def getAllForObject(self, ob):
+        return IToIRegistry.getAllForObject(self, ob, None)
 
     def getForType(self, interface):
         return self.get(interface, None)
+
+