Google App Engine for Java Google Group

App Engine Python and Java community support has moved to Stack Overflow

a...@google.com (Amy Unruh) — Fri, 23 Mar 2012 11:19:12 UT

hi all,
As announced in these threads:
[link]
[link]
we have now placed the Java and Python App Engine groups into read-only

Re: [appengine-java] What does "Memcache put: Error setting single item" mean?

josue.mo...@gmail.com (Josué MOENS) — Fri, 23 Mar 2012 10:50:43 UT

Hello,
I have the same issue. How can we get the size of an object we put in the
memcache ? I suppose it's serialized to be stored, so how to calculate the
size ?
Best regards,

DatastoreService problem

tuanquan...@gmail.com (dtt) — Fri, 23 Mar 2012 08:44:03 UT

Hi,

I am experiencing on a problem with the DatastoreService, the filter
condition does not effect to the result.
Even though I added a filter to the query statement, but all records
which does not match the filter condition still returned.
It still works correctly if I change to use the PersistenceManager.

can't install plugin in eclipse indigo

adamvar...@gmail.com (אדם ורסנו) — Fri, 23 Mar 2012 08:04:51 UT

when
while fetching to the google server
i get timeout error

any idies?

"An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee,
phase=org.eclipse.equinox.inte rnal.p2.engine.phases.Collect, operand=,
action=).
Unable to read repository at

Re: [appengine-java] Datastore server error

marcel.m...@gmail.com (Marcel Manz) — Fri, 23 Mar 2012 07:59:15 UT

Please star these issues:
[link]
[link]

Deployment problem

odrin...@gmail.com (Odrin) — Thu, 22 Mar 2012 15:48:03 UT

I have problem in deployment on SDK 1.6.3
On random deployments my JavaScript does not load at all. I then
redeploy my site a
few times with no code changes, and the JS works fine. Changing the
version helps, but it is not very convenient.

Re: [appengine-java] How do I query by key?

j...@infohazard.org (Jeff Schnitzer) — Fri, 23 Mar 2012 02:15:49 UT

Let's say you have a Profile entity with an id of 123. The easiest
way to retrieve it is to use DatastoreService.get(), not a query.
Construct a Key and pass that to get():
DatastoreService ds = DatastoreServiceFactory.getDat astoreService();
Key key = KeyFactory.createKey("Profile" , 123L);
Entity ent = ds.get(key);

Re: [appengine-java] Re: Presentation: Developing WordPong.com on Google App Engine

drfibona...@google.com (David Chandler) — Thu, 22 Mar 2012 22:52:55 UT

Bucky, one of my favorite App Engine books is listed on this page:
[link]
Mike, thanks again for helping out at DevNexus. Great stuff,
/dmc

How do I query by key?

aribarhun...@gmail.com (Aribar Hunter) — Thu, 22 Mar 2012 21:34:37 UT

I feel stupid. I've looked over lots of documentation, I've tried Google
searches, I've searched on other sites like Stackoverflow, and I just don't
understand this.
I have a site that allows the user to access "profiles" of imaginary people
containing information like names and descriptions. I have links

Re: User authentication in App engine with android.

patjackso...@gmail.com (Patrick Jackson) — Thu, 22 Mar 2012 13:12:42 UT

I am trying to do exactly this. Did you ever find a solution? I thought
I would be able to pass the auth cookie in the header of the request from
android and be able to access the User Service, however I aways get
user==null. I have posted a question on stackexchange :
[link]

Re: Datastore server error

m...@systemsplanet.com (Mike Lawrence) — Thu, 22 Mar 2012 10:21:07 UT

Switch to HR datastore

On Mar 21, 9:28 am, Aswath Satrasala <aswath.satras...@gmail.com>
wrote:

Re: [appengine-java] Quick setup and deploy for university class lab time?

amyu+gro...@google.com (Amy Unruh) — Thu, 22 Mar 2012 06:17:22 UT

One of these codelabs:
[link]
or [link]
from this site:
[link]
can work well in that time frame, and you could modify it to have a bit

Re: [appengine-java] Quick setup and deploy for university class lab time?

j...@infohazard.org (Jeff Schnitzer) — Thu, 22 Mar 2012 04:25:56 UT

Can students install Eclipse and run Hello, World on GAE in 3.5 hours?
Almost certainly. How much more sophisticated can the sample project
get? This is a hard thing to judge without knowing your students.
Back when I was a CSc student, data structures was a 200-level class
and few (if any) students would have been ready to build a web

Quick setup and deploy for university class lab time?

bsddo...@gmail.com (bsddorin) — Thu, 22 Mar 2012 01:43:55 UT

In 3 weeks I have scheduled some lab time for my data structures
class.
We have been studying data structures since January and I would really
like for them to have a little
application they can 'show the world'...

We only have 3.5 hours in the lab. The PC's have java installed and
can do java builds.

Re: need help on issue in storing to google storage using java apis

vik....@gmail.com (Vik) — Wed, 21 Mar 2012 22:58:48 UT

Hie
Can someone please advise on this?
Thankx and Regards
Vik
Founder
[link]
[link]