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From Matthew Adams <matt...@matthewadams.me>
Subject Re: Asynchronous database ops in JDO - something for the future?
Date Wed, 13 Jul 2011 22:35:46 GMT
Hi David,

Interesting ideas.  If you can, please file a JIRA so that we can track it.
 It would probably be related to issue
https://issues.apache.org/jira/browse/JDO-651 .

-matthew

On Mon, Jul 11, 2011 at 7:14 PM, David Bullock <dtbullock@gmail.com> wrote:

> Hi JDO specification folk,
>
> One environment where I'd like to use JDO is Google AppEngine's datastore,
> and that datastore specifies a way of working with data where one fires off
> the query and then gets the results from a Future some time later [1].  (I
> am sure Andy knows all about it lately :-)).
>
> As far as I know, JDO doesn't currently standardise a way of working with
> datastores in an async manner.  Maybe that would be an interesting problem
> for JDO 4 some day?  As datastores increasingly become non-local and
> latencies for operations become high, getting a callback when the datastore
> is finished is a convenient way of working with it.
>
> cheers,
> David.
>
> [1]
>
> http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/AsyncDatastoreService.html
>



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