You're probably best off creating new instances of DatastoreService. There
are some good points raised here:

https://groups.google.com/group/google-appengine-java/browse_thread/thread/e19b792042b2ff9b#

On Fri, Apr 2, 2010 at 1:26 AM, Matt Farnell <mfarn...@gmail.com> wrote:

> I finally figured it out, its on the Datastore config level.
>
> DatastoreServiceConfig config =
> DatastoreServiceConfig.Builder.withReadPolicy(new ReadPolicy(Consistency.
> EVENTUAL));
>
> DatastoreService dss = DatastoreServiceFactory.getDatastoreService(config);
>
> I thought it would have been on the Query object as it is in the JDO
> example posted in the blog. I was using a singleton as I thought we were
> only meant to instantiate one DatastoreService instance and reuse it??
>
>
> On Fri, Apr 2, 2010 at 1:04 AM, lepah <mfarn...@gmail.com> wrote:
>
>> Hi there,
>>
>> How can I use this with the low level datastore, I've looked around in
>> the JavaDocs and found ReadPolicy.Consistency but couldn't find
>> anywhere to set it. It could be just me as it's 1AM. Would love to try
>> it out.
>>
>> On Apr 1, 11:39 am, Isdal <tomas.is...@gmail.com> wrote:
>> > Thanks Ikai!
>> >
>> > I noticed that the docs are updated now too. This page has a couple
>> > examples on it as well:
>> http://code.google.com/appengine/docs/java/datastore/usingjdo.html
>> >
>> > // Tomas
>> >
>> > On Mar 30, 3:57 pm, "Ikai L (Google)" <ika...@google.com> wrote:
>> >
>> >
>> >
>> > > Yep. The example is documented here:
>> >
>> > >http://googleappengine.blogspot.com/2010/03/read-consistency-deadline.
>> ..
>> >
>> > > <
>> http://googleappengine.blogspot.com/2010/03/read-consistency-deadline..
>> .>Query
>> > > q = pm.newQuery(Employee.class);
>> > > q.addExtension("datanucleus.appengine.datastoreReadConsistency",
>> > > "EVENTUAL");
>> >
>> > > On Fri, Mar 26, 2010 at 5:12 PM, Isdal <tomas.is...@gmail.com> wrote:
>> > > > Hi all,
>> >
>> > > > Thanks for all new new features in 1.3.2!
>> >
>> > > > I was just wondering if it is possible to use the
>> > > > "ReadPolicy.Consistency.EVENTUAL" feature and still use the JDO
>> > > > interface.
>> >
>> > > > I am currently getting a PersistenceManager with:
>> > > > JDOHelper.getPersistenceManagerFactory("transactions-
>> > > > optional");
>> >
>> > > > Is there a way to tell the PersistenceManager to tell the datastore
>> to
>> > > > accept eventually consistent reads? Most of my app can handle stale
>> > > > data, and any performance improvement would be great!
>> >
>> > > > Thanks!
>> >
>> > > > // Tomas
>> >
>> > > > --
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>> >
>> > > --
>> > > Ikai Lan
>> > > Developer Programs Engineer, Google App Enginehttp://
>> googleappengine.blogspot.com|http://twitter.com/app_engine
>>
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-- 
Ikai Lan
Developer Programs Engineer, Google App Engine
http://googleappengine.blogspot.com | http://twitter.com/app_engine

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