UFBTree

BTrees/Interfaces.py

@@ -470,31 +470,47 @@ class IBTreeFamily(Interface):
     minint = Attribute('The minimum signed integer storable in this family')
 
 
-class IIntegerObjectBTreeModule(IBTreeModule, IMerge):
-    """keys, or set values, are integers; values are objects.
+class _IMergeBTreeModule(IBTreeModule, IMerge):
+    family = Attribute('The IBTreeFamily of this module')
+
+
+class IIntegerObjectBTreeModule(_IMergeBTreeModule):
+    """keys, or set values, are signed integers; values are objects.
 
     describes IOBTree and LOBTree"""
 
-    family = Attribute('The IBTreeFamily of this module')
+
+class IUnsignedObjectBTreeModule(_IMergeBTreeModule):
+    """
+    As for `IIntegerObjectBTreeModule` with unsigned integers.
+    """
 
 
-class IObjectIntegerBTreeModule(IBTreeModule, IIMerge):
-    """keys, or set values, are objects; values are integers.
+class IObjectIntegerBTreeModule(_IMergeBTreeModule):
+    """keys, or set values, are objects; values are signed integers.
 
     Object keys (and set values) must sort reliably (for instance, *not* on
     object id)!  Homogenous key types recommended.
 
     describes OIBTree and LOBTree"""
 
-    family = Attribute('The IBTreeFamily of this module')
+
+class IObjectUnsignedBTreeModule(_IMergeBTreeModule):
+    """
+    As for `IObjectIntegerBTreeModule` with unsigned integers.
+    """
 
 
-class IIntegerIntegerBTreeModule(IBTreeModule, IIMerge, IMergeIntegerKey):
-    """keys, or set values, are integers; values are also integers.
+class IIntegerIntegerBTreeModule(_IMergeBTreeModule, IMergeIntegerKey):
+    """keys, or set values, are signed integers; values are also signed integers.
 
     describes IIBTree and LLBTree"""
 
-    family = Attribute('The IBTreeFamily of this module')
+
+class IUnsignedUnsignedBTreeModule(_IMergeBTreeModule, IMergeIntegerKey):
+    """
+    As for `IIntegerIntegerBTreeModule` with unsigned integers.
+    """
 
 
 class IObjectObjectBTreeModule(IBTreeModule, IMerge):
@@ -509,12 +525,15 @@ class IObjectObjectBTreeModule(IBTreeModule, IMerge):
     # the OO flavor of BTrees.
 
 
-class IIntegerFloatBTreeModule(IBTreeModule, IMerge):
-    """keys, or set values, are integers; values are floats.
+class IIntegerFloatBTreeModule(_IMergeBTreeModule):
+    """keys, or set values, are signed integers; values are floats.
 
     describes IFBTree and LFBTree"""
 
-    family = Attribute('The IBTreeFamily of this module')
+class IUnsignedFloatBTreeModule(_IMergeBTreeModule):
+    """
+    As for `IIntegerFloatBTreeModule` with unsigned integers.
+    """
 
 
 try:

BTrees/UFBTree.py

@@ -13,7 +13,7 @@
 ##############################################################################
 
 __all__ = ('Bucket', 'Set', 'BTree', 'TreeSet',
-           'IFBucket', 'IFSet', 'IFBTree', 'IFTreeSet',
+           'UFBucket', 'UFSet', 'UFBTree', 'UFTreeSet',
            'union', 'intersection', 'difference',
            'weightedUnion', 'weightedIntersection', 'multiunion',
           )