[Zope-CVS] CVS: Products/AdaptableStorage/serial/interfaces - IGateway.py:1.2

[Shane Hathaway]

Update of /cvs-repository/Products/AdaptableStorage/serial/interfaces
In directory cvs.zope.org:/tmp/cvs-serv22143/serial/interfaces

Modified Files:
	IGateway.py 
Log Message:
Running AdaptableStorage with the latest Zope revealed some flaws.
Fixed them all.

- Consistent ordering of transaction participants now makes it impossible to
  add a jar to the transaction after the commit() method has begun.
  AdaptableStorage (and perhaps other projects like ZPatterns) relied on
  the ability to add a jar after commit has started.  This could lead to
  a deadlock.  Reworked ASStorage, FSConnection, and the tests to deal with
  this.

- Serials are now required to be hashable.  This makes serials, used to
  prevent conflicts, simpler and more robust.

- DBTab needs some kind of class it can call directly, so I added
  the small subclasses FSStorage and FSDatabase to Zope2FS.

- Restored the PersistentExtra patch.

- The directory items gateway wants to write data about its children, but
  sometimes its children aren't being written at the same time.  Added
  a "conditional" optional flag to FSConnection.writeSection(), allowing
  data to be written only if other data gets written.


=== Products/AdaptableStorage/serial/interfaces/IGateway.py 1.1 => 1.2 ===
--- Products/AdaptableStorage/serial/interfaces/IGateway.py:1.1	Wed Nov 27 13:37:06 2002
+++ Products/AdaptableStorage/serial/interfaces/IGateway.py	Tue Dec  3 18:10:53 2002
@@ -38,10 +38,11 @@
     def load(object_mapper, key):
         """Loads data.
 
-        Returns a pair containing the data and an object
-        that acts as a serial number or a hash of the data.
-        The serial number is either a time stamp or some other object
-        that can be consistently compared to detect conflicts.
+        Returns a pair containing the data and an object that acts as
+        a serial number or a hash of the data.  The serial number is
+        either a time stamp or some other object that can be
+        consistently compared to detect conflicts.  The serial must be
+        hashable.
         """
 
     def store(object_mapper, key, data):