Provide some iterator-related interfaces.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2512 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/client/Storage.py

@@ -47,6 +47,10 @@ class Storage(BaseStorage.BaseStorage,
         # "restore" missing for the moment, but "store" implements this
         # interface.
         # ZODB.interfaces.IStorageRestoreable,
+        # XXX: imperfect iterator implementation:
+        # - start & stop are not handled (raises if either is not None)
+        # - transaction isolation is not done
+        # ZODB.interfaces.IStorageIteration,
     )
 
     def __init__(self, master_nodes, name, connector=None, read_only=False,

neo/client/iterator.py

@@ -16,6 +16,8 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 from ZODB import BaseStorage
+from zope.interface import implements
+import ZODB.interfaces
 from neo import util
 from neo.client.exception import NEOStorageCreationUndoneError
 from neo.client.exception import NEOStorageNotFoundError
@@ -23,6 +25,10 @@ from neo.client.exception import NEOStorageNotFoundError
 class Record(BaseStorage.DataRecord):
     """ TBaseStorageransaction record yielded by the Transaction object """
 
+    implements(
+        ZODB.interfaces.IStorageRecordInformation,
+    )
+
     def __init__(self, oid, tid, version, data, prev):
         self.oid = oid
         self.tid = tid
@@ -40,6 +46,12 @@ class Record(BaseStorage.DataRecord):
 class Transaction(BaseStorage.TransactionRecord):
     """ Transaction object yielded by the NEO iterator """
 
+    implements(
+        # TODO: add support for "extension" property so we implement entirely
+        # this interface.
+        # ZODB.interfaces.IStorageTransactionInformation,
+    )
+
     def __init__(self, app, tid, status, user, desc, ext, oid_list,
             prev_serial_dict):
         self.app = app