Improved handling of subtransactions. Should keep memory from

ballooning beyong the capacity of the machine.  Note: while mass
indexing, the memory footprint of Zope will get huge.  There is NO way
around this.  incrimentally index if you want your process to stay small.

Catalog.py

@@ -274,7 +274,7 @@ def delIndex(self, name):
 
     # the cataloging API
 
-    def catalogObject(self, object, uid):
+    def catalogObject(self, object, uid, threshold=None):
         """ 
 
 	Adds an object to the Catalog by iteratively applying it
@@ -304,7 +304,7 @@ def catalogObject(self, object, uid):
         total = 0
         for x in self.indexes.values():
             if hasattr(x, 'index_object'):
-                blah = x.index_object(i, object)
+                blah = x.index_object(i, object, threshold)
                 __traceback_info__=(`total`, `blah`)
                 total = total + blah
 

ZCatalog.py

@@ -159,7 +159,7 @@ def __init__(self,id,title=None):
         self.id=id
         self.title=title
         self.threshold = 1000
-        self.total = 0
+        self._v_total = 0
         self._catalog = Catalog()
 
 	self._catalog.addColumn('id')
@@ -176,7 +176,17 @@ def __init__(self,id,title=None):
 
 	self._catalog.addColumn('summary')
 	self._catalog.addIndex('PrincipiaSearchSource', 'TextIndex')
+
+
+    def manage_edit(self, threshold=1000, REQUEST=None):
+        """ edit the catalog """
+	self.threshold = threshold
+
+	message = "Object changed"
+	return self.manage_main(self, REQUEST,
+				manage_tabs_message=message)
 
+
 
     def manage_catalogObject(self, REQUEST, urls=None, blah=None):
 	""" index all Zope objects that 'urls' point to """
@@ -251,7 +261,6 @@ def manage_catalogFoundItems(self, REQUEST, obj_metatypes=None,
 
         """ Find object according to search criteria and Catalog them
         """
-
         results = self.ZopeFind(REQUEST.PARENTS[1],
                                 obj_metatypes=obj_metatypes,
                                 obj_ids=obj_ids,
@@ -309,10 +318,15 @@ def manage_delIndexes(self, names, REQUEST):
 
     def catalog_object(self, obj, uid):
 	""" wrapper around catalog """
-	self.total = self.total + self._catalog.catalogObject(obj, uid)
-        if self.total > self.threshold:
+	if not hasattr(self, '_v_total'):
+	    self._v_total = 0
+	self._v_total = (self._v_total +
+			 self._catalog.catalogObject(obj, uid, self.threshold))
+
+        if self._v_total > self.threshold:
+	    print 'commiting in ZCatalog'
             get_transaction().commit(1)
-            self.total = 0
+            self._v_total = 0
 
 
     def uncatalog_object(self, uid):