Now i am sure its some defect in Google App Engine
I tried following url for few entities it ran fine and it did updated the
entities but still indexes are not working properly
for (Entity result : pq.asIterable()) {
Map<String, Object> allProp = result.getProperties();
for(Entry<String, Object> oneEntry:allProp.entrySet()){
System.out.println("update :
"+oneEntry.getKey()+"="+oneEntry.getValue());
result.setProperty(oneEntry.getKey(),
oneEntry.getValue());
}
result.setProperty("area", 10); //this line just to see that
my changes are actually saving in datastore and it shows the datastore is
being updated perfectly
//but still Indexes are not updated
System.out.println("Saving new Entity start");
datastore.put(result);
System.out.println("Saving new Entity Done");
}
I hope my query is valid for GAE(Low level datastore APIs)
select * from A where locationIds *=* <SomeKey> and tfs *in* <Lit of Long
types> order by lastSaveDate DESC
locationKeys ▲ , tfs ▲ , lastSaveDate ▼
On Fri, Apr 29, 2011 at 10:21 PM, <[email protected]> wrote:
> In order to set indexed props with the low level,
>
> entity.setProperty("foo", "bar")
>
> Unindexed properties
>
> entity.setUnindexedProperty("foo", "baz")
>
> I apologize about getting the API wrong in my last message.
>
> to get values out of indexed properties, you cast:
>
> Date d = (Date) entity.getProperty("somedate")
>
> If it is an unindexed property, you have to parse string
>
> String mydata = ((Text) entity.getProperty("someunindexedprop")).getValue()
>
>
> On Apr 29, 2011 2:17pm, Ravi Sharma <[email protected]> wrote:
> > Thanks John
> > I wished Goole App JDO or Low level API could have done the same thing
> and wouldnt have to learn one more framework.....it may be easier but still
> i have to spend some time.
> > By the way do you know correpsonding API(setIndexedProp()) in Datastore
> low level API...
> >
> > If some third party frmaework can do something then i am sure Low Level
> datastore api must be capable of doing the same.
> >
> > Thanks,
> > Ravi.
> >
> >
> > On Fri, Apr 29, 2011 at 9:52 PM, John Wheeler [email protected]>
> wrote:
> >
> > Ravi,
> >
> >
> > I think you might need a MapReduce job that calls setIndexedProperty on
> all your affected entities. Here's mine for you to adapt, but if you don't
> know MapReduce, you'll have to check it out.
> >
> >
> >
> >
> >
> > public class QuickBulkJob extends AppEngineMapper {
>
> >
> > private static final Logger log =
> Logger.getLogger(QuickBulkJob.class.getName());
> >
> >
> >
> > @Override
> >
> > public void map(Key key, Entity e, Context context) throws
> IOException, InterruptedException {
> >
> > setIndexedProp(e, "deactivated");
> >
> > setIndexedProp(e, "feedbackReceived");
> >
> >
> > setIndexedProp(e, "email");
> >
> >
> > getAppEngineContext(context).getMutationPool().put(e);
> >
> >
> >
> > }
> >
> >
> >
> > private static void setIndexedProp(Entity e, String prop) {
> >
> > if (e.hasProperty(prop)) {
> > e.setProperty(prop, e.getProperty(prop));
> >
> > }
> > }
> >
> >
> > }
> >
> >
> >
> > Best of luck to you.
> >
> >
> >
> >
> >
> > --
> >
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> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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