Hi,
You should also consider 3rd party packages like Objectify who works
at an intermediate level of abstraction.
The low-level api forces you to handle everything by yourself: the
Entity, its Properties, etc...
In JPA, JDO: you work much higher in abstraction: you define a Java
class as an Enti
Hi,
The simplest way is to write a servlet on GAE.
When your own server is done with the calculation, it posts (http
POST) the new data to this servlet who reads it and separate each line
as a new entity in the datastore.
The servlet can then do further processing (cleanup, updates, etc.) if
nee
I think we can better surface the projects that are built by App Engine team
members that aren't so obviously accessible from the docs. It's important to
understand what these tools provide. A few off the top of my head:
- App Engine Mapreduce (so far only Map step is implemented but still *very*
It sounds like you'll want to build your own API for this. Once you invoke
the API, all it has to do is "follow up" and run whatever code you need to
run.
One of the team members released Protorpc to help facilitate this sort of
thing in Python to make it easier to communicate between client and s
Watch all of the App Engine videos from 2008, specifically the following
(yes, they pre-date Java support on App Engine, but most of the principles
apply):
https://sites.google.com/site/io/building-scalable-web-applications-with-google-app-engine
https://sites.google.com/site/io/under-the-covers-
Hello, i have a problem with the guestbook application example.
I followed the instructions of official tutorial to test user
authentication. It worked fine on my machine locally, but when I
published it, appeared an error message:
--
Error: Server Error
The server encount
Howdy,
I'm brand new to GAE/Java dev, and wish to ask a few questions about a
simple test code fragment I just deployed. This (very simple) code
fragment might help someone implement OAuth when integrating GAE with
Google App Script. I've seen parts of it in a few places, but never
in a complete
Hello guys,
Here is a quick noob question. I was reading about Channel API on GAE and
TicTacToe
implementation.
http://code.google.com/appengine/docs/java/channel/overview.html
Then I've thought that if the game gets bigger; GAE will automatically
create new instances and then new players ma
I'm researching the same and going with option 1. My plan is to create
one user account and upload all my users videos under that account
(that strategy solves one of your concerns -which is mine too).
Re:privacy, are you sure we cannot label videos as private?
I'll share my progress with you. B
I have a question :
What are the differences between JPA/JDO and low level API (and
Objectify) in practice ? I read everywhere the low level API provides
more flexibility, but there are never samples code or evidences to
demonstrate it. So I'm wondering in which cases exactly, the low level
API is
Same problem here!
The getAclFeed request failed for the sites where there is the user
"Anyone with the link in 'COMPANY'"
What is the solution for this issue?
com.google.gdata.util.ParseException: [Line 1, Column 3774, element
entry] Required extension element http://schemas.google.com/acl/2007:r
Are deferred tasks part of a per-instance queue or the global task queue?
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Just to close off this thread, we rolled out a fix for this issue yesterday.
On Sun, Mar 27, 2011 at 5:35 PM, Don Schwarz wrote:
> Sorry for the trouble, folks. Can you respond privately with your app ids?
>
>
> On Sun, Mar 27, 2011 at 2:44 AM, radomir wrote:
>
>> John,
>>
>> I experienced exa
Forgot:
-about the docs: use the api based on File class for your files in the
blobstore. Just announced yesterday.
- Also, have a look to tasks: that's the way to generate parallelism
in your application if you want to do stuff simultaneously (quick
handling of big data, etc...)
Good luck for y
Hi,
Also think about Google Web Toolkit for the UI: you will remain so
full-Java and you can do nice interface even if you are as bad as I am
in graphics / ui design ;-)
I agree with Simon: definitely forget JPA/JDO! (I went with
Objectify)
Also study carefully the datastore, especially entity
Thanks Simon,
I am going to work through the java example program and familiarise myself
while I read all the docs.
Thanks for the advice re: JDO. That's the kind of thing I was looking for.
Also - is it best to stay away from GWT for now? I would assume I need to
get my backend working nicely
Update done and Jetty up and running...
Thanks again...
On Fri, Apr 1, 2011 at 2:08 AM, Toby Reyelts wrote:
> There should be an update available for you on the 1st. (Not an April fools
> joke).
>
>
> On Thu, Mar 31, 2011 at 8:31 PM, lorenoolive...@gmail.com <
> lorenoolive...@gmail.com> wrote:
setVersioned( false ) solves the issue.
On 30 Mrz., 20:33, hrbaer wrote:
> Hi all,
>
> I try to add a flash based gallery to my GAE application.
> But if I call the page where the gallery is located at I get the
> following exception:
>
> WicketMessage: Method onLinkClicked of interface
> org.apa
You can add .setVersioned( false ) on your component and then it is
working...
On 1 Apr., 15:10, hrbaer wrote:
> Hi all,
>
> I tried a few free web gallerys (flash based, JS based).
>
> If I run my web application on my local server everything seems to be
> fine. But if I deploy it to the Google
We need to periodically upload the new data into our Java App running on the
App Engine. We are going to perform some calculations on our own server,
after which the results of this calculation need to be uploaded into the App
Engine app. The results are just a text file (each line is a separate
It's Python-only but has anyone tried ereporter?
http://code.google.com/appengine/articles/python/recording_exceptions_with_ereporter.html
Would it be possible to write a simple Python app for this and deploy it
alongside our main Java app?
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Hi all,
I tried a few free web gallerys (flash based, JS based).
If I run my web application on my local server everything seems to be
fine. But if I deploy it to the Google server I always get an
AccessControlException.
Does anybody already included some JS/Flash gallery on his/her
webpage?
Th
Hi,
My first bit of advice is read all of the documentation available, even if
the topic doesn't appear relevant at first, as there are little gems of
knowledge and limitations about the platform scattered throughout. I'd even
go as far as to say you would benefit from reading the Python docum
Hi all,
Totally new to this, about to embark on a development for my own business
and think that GAE is the perfect solution. I basically want to make sure
that we are making the right choice, and to be informed of any pitfalls
early on.
Basically the system will be a complete intranet/sales t
Hello,
I did the following
Objectify ofy = ObjectifyService.begin();
I created few entities in a loop (exactly 90). There is no parent for the
entities.
Then I said ofy.put(listOfEntities)
The request was successful. There was no DeadlineExceededException.
However, only one entity was persisted,
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