I am planning to use the regular servlet interface and use encoded protobufs
in the request and response bodies.
thoughts/suggestions?
On Wed, Feb 23, 2011 at 12:47 PM, Peter Ondruška
wrote:
> Just a note on Java-to-Java serialization: This is not going to work 100%
> while protobuf serializatio
same problem, havent found an answer.
On Jan 28, 1:46 am, Christophe Weber
wrote:
> Hi,
>
> I have a problem when trying to query on the appengine. here's what I do:
>
> Query q = persistenceManager.newQuery(User.class);
> q.declareParameters("java.lang.String emailParam");
> q.setFilter("userEm
Just a note on Java-to-Java serialization: This is not going to work 100%
while protobuf serialization should work.
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Completely Make sense. Thanks Didier.
On Tue, Feb 22, 2011 at 5:57 PM, Didier Durand wrote:
> Hi Amit,
>
> I still don't know much about your app and requirement, but what I can
> say:
>
> a) you should stick to http rather than going to any other kind of
> RPC: http on port 80 is very well manag
tried that and it's telling me
org.datanucleus.exceptions.NucleusObjectNotFoundException: Could not
retrieve entity of kind Thread with key Thread(51)
I also tried doing a query with the Thread key and UserKey (wich is the key
for a thread) and then I get an exception about modifying 2 entities in
Thanks! I'll try that. BTW no, addComment does not store the comment.
On Tue, Feb 22, 2011 at 8:49 PM, WillSpecht wrote:
> Don't you need to persist the thread as well as the comment? It's
> hard to analyze your code with such a small sample. Does addComment
> persist the thread? My
> guess i
Don't you need to persist the thread as well as the comment? It's
hard to analyze your code with such a small sample. Does addComment
persist the thread? My
guess is that something is making the transaction fail, probably
cause you are trying to operate on two different entity groups. I
would si
Great, thanks all!
On Feb 22, 7:49 am, Ronmell Fuentes wrote:
> Hi John,
> acording to my expertise in DataStore, you'll get more know-how when running
> the example
> you'll see the creation of the files and all the data that datastore deals
> with.
> try running the helloWorld example and try t
If you set the JVM flag, "-Djava.security.debug=access,failure", you'll get
a lot of log spam that has the root cause buried in it somewhere. If you
post the logs to the list, we can help debug it for you. Remember that if
you're running dev_appserver from the command line, you need to use
--jvm_fl
Hi,
I would also recommend you to get the source code of Objectify, 1 of
the open source datastore frameworks recommended by Google to work on
top of its low-level ds api: very efficient and broad use of the ds
capabilities.
I would also recommend the wiki pages of the project: perceived as
very
I can't answer the first question, but as for the second - are you doing any
static initialization of that class? If a static initializer fails, you
will get a ClassNotFoundException even if the Class is deployed.
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I think one of the best ways to start learning about the datastore is to use
the low-level API:
http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/package-summary.html
We changed our docs recently to show examples using this. As far as open
source projects go, y
Hi,
Since yesterday, my GAE app has zero instance allowed so when I enter
http://teatropicaro.appspot.com I get an error 500.
I've tried to disable and re-enable the app but nothing to do.
Please help.
Thank you.
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Hi John,
acording to my expertise in DataStore, you'll get more know-how when running
the example
you'll see the creation of the files and all the data that datastore deals
with.
try running the helloWorld example and try to
1. create one own Object to be stored (kinda POJO);
2. create a Persistenc
I've been reading the App Engine docs to prep myself for for a new
project using the datastore.
When learning a new technology I like to look at working code vs. just
the examples in the docs.
Does anyone know of an active open source project that I can download
and use to accelerate my learning
In almost every example code I can see, the PersistenceManager is never
closed ( call close() ) with JDO transaction operation.
What's the reason of that? ( In other cases, close() is always called in
finally clause )
My code has both transaction and non-transaction operations, the entity
retur
Hi,
I catch this exeption when i use the ACL feed for a site where there
is the user "anyone with the link":
com.google.gdata.util.ParseException: [Line 1, Column 8788, element
entry] Required extension element http://schemas.google.com/acl/2007:role
not found.
I saw the same problem was apparent
Okay last night I deployed onto GAE and everything worked. I changed
some html (no java, config, etc) and deployed again. Now when I
access the app via the default gae url e.g. id.appspot.com, my app
throws a ClassNotFoundException - and I'm sure the class is in the WEB-
INF/classes folder. Stran
I'm running the dev-server (ver. 1.4.2) and GData Docs 3.0 Client ( on
Windows Vista and I also experience this problem when I try to access
the DocList with Oauth like below:
GoogleOAuthParameters oauthParameters = new GoogleOAuthParameters();
oauthParameters.setOAuthConsumerKey(CONSUMER_KEY);
o
If I use IdGeneratorStrategy.Identity to generate a long key field and
then delete the object associated with that key from the datastore.
Is it possible that the same key will be reused with a different
object of the same class? Or are keys always unique?
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Its okay, the file isnt used on my localhost, but it works fine on
google apps engine...
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Any idea on how to use the bulkloader, if FederatedLogin Authentication is
enabled.
-Aswath
On Mon, Feb 21, 2011 at 3:38 PM, Aswath Satrasala <
aswath.satras...@gmail.com> wrote:
> I figured out this.
> I had modified the Application Setting ->AuthenticationOptions to
> 'Federated Login'. Hence
Hi Amit,
I still don't know much about your app and requirement, but what I can
say:
a) you should stick to http rather than going to any other kind of
RPC: http on port 80 is very well managed and ubiquitous over the
whole Internet. If you go to something more "exotic", you risk getting
blocked
Hi Tom,
I always call close() on an PersistenceManager instance once I have
finished with it, be it using or not using a transaction.
In my jdoconfig.xml, I use the setting
so I can call PersistenceManager#close() with confidence that I am not
mucking anything up.
I cannot think of a reason
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