On Tuesday, October 23, 2012 5:13:28 PM UTC-4, Andrew Mackenzie wrote:
>
> After reading the documentation that, yes you will get an exception (or if
> it is the write that has arrived "late" then it will get the exception on
> committing...) - otherwise, what would be the point of using an exception
> around any data store reads?
I'm not positive, but I doubt the write transaction ("B" above) would get
an exception if it committed last, since the read transaction didn't write
anything. The point of using a read transaction is to get a consistent
view of the data store over the course of multiple reads, instead of
getting the state as each individual read is made.
--
You received this message because you are subscribed to the Google Groups
"Google App Engine" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-appengine/-/ruJBrP2Lr5oJ.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.