this is more a java question than GAE question
check out this
http://java.sun.com/developer/technicalArticles/Programming/serialization/
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dev_appserver.cmd **C:\Program Files\GoogleAppEngine
\appengine-java-sdk-1.3.0\demos\guestbook\war**
On Mon, May 30, 2011 at 3:05 PM, Suresh suresh...@gmail.com wrote:
hi
i have just installed the java sdk. after extracting the files from
the appengine-java-sdk-1.3.0 jar, I am trying to
I would like to do this too.
The priority for me is to preserve my application ID during this
migration. My understanding is that it is impossible for an existing
app to switch from M/S to HR; a new app ID must be used. (I would love
it if my understanding is incorrect.)
On May 30, 12:02 pm,
I think there is an option to alias your old application id. So maybe
that's option for you?
From my perspective all data can be cleaned in my apps, so just
switching would be sufficient... doesn't sound that hard?
On May 31, 9:10 am, Ian Marshall ianmarshall...@gmail.com wrote:
I would like
First of all thank you very much.
This is my persistence.xml
?xml version=1.0 encoding=UTF-8 ?
persistence xmlns=http://java.sun.com/xml/ns/persistence;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/persistence
Hi,
Yes all the datastore insert, update, delete done in the transaction
are canceled by the rollback operation.
The put of your updated Account is validated only if the transaction
commit is done succesfully.
PA
On 30 mai, 07:57, Jacob jacob.rho...@gmail.com wrote:
I am writing some code
Hello,
In the Application Setting of the Appengine console, set the Authentication
Options to 'Federated Login'.
Two features will not work
- bulkloader
- client remote-api.
Any workarounds for the above?
-Aswath
www.AccountingGuru.in
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I have found no workarounds for this limitation at the moment. I'm slicing
up my images into tiles/squares which suites my strategy anyway. But it
would be nice to figure out why the error shows up.
Brandon Donnelson
http://gwt-examples.googlecode.com
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I made an issue:
http://code.google.com/p/googleappengine/issues/detail?id=5131
Can GAE dev setup Blob write to datastore unit test, which would take up to
10min writing 10MB+ of data in task. This should replicate the issue.
Brandon Donnelson
http://gwt-examples.googlecode.com
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Hello,
I have an app which latest version was deployed before: 1 day, 2:19:39. The app
is working, but before few minutes I got the following exception:
javax.servlet.UnavailableException: Configuration problem
at
Hello,
The version which I'm currently using is 1.3.8, but when I deploy it on gae,
the following snippet is logging:
com.evo.adm.server.AdmBootstrap contextInitialized: Server info: Google App
Engine/Google App Engine/1.5.0
String serverInfo =
I am looking for the solution on this. Can someone help..
On May 30, 10:18 pm, Tom Phillips tphill0...@gmail.com wrote:
I've got a public backend instance that I'd like to share the user
session (java sessions are enabled for app) from the frontend with so
that the user doesn't have to log in
Hello,
I am trying to track down a very obscure issue in GAE/J. I have my own
custom ForEachTag that I've written that extends from JSTL
1.2's org.apache.taglibs.standard.tag.rt.core.ForEachTag. Obviously, in
order to compile my app, I need to compile with the jstl-1.2.jar.
Compilation and
One other item I should mention: this issue only applies on *some* JSP
pages. The exception happens only when using the forEach on certain pages.
Other pages that use the forEach tag don't have this issue and render just
fine. Perhaps it has something to do with the caching and release
Hello everyone.
I am very happy to introduce you to a site made by me and my friend Giorgio.
http://www.youtrail.com
The website ha been completely developed with GWT, and deployed on the app
engine.
The main theme of the site are the outdoor sports/activities: you can find
some trail with
That exception happens when a javascript page is left running between
re-starting the dev appserver. You can get around it by closing the
client page when you re-start the dev appserver.
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Cool idea, but I think you might want to look into GWT's code splitting. It
took me 35 seconds to download your 2.11MB file. That's going to turn off a
LOT of users. I understand that that file gets cached, but that's not going
to be the case on their first trip to your site.
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How can one avoid putting objects into the HttpSession?
On 23/07/64 5:59 AM, Simon Knott wrote:
Hi,
Any object you put in the HttpSession needs to implement Serializable.
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To post
I have a Spring Controller that is being invoked via an HTTP POST from
the GAE Queue Scheduler.
@Controller
@RequestMapping(value = RSSPoller.RSS_POLLER_URL)
public class RSSPoller implements Serializable {
private static final long serialVersionUID = -4925178778477404709L;
public static
You're right ...
It will be one of the first things to improve ...
Thanks a lot!
Alessandro
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You can reduce time-out issues if you paginate your query by obtaining
contiguous chunks, one at a time. A lot depends on your data exchange
interface. I use JDO, and GAE/J makes query cursors available for
this. I don't know how other interfaces allow cursor/pagination
operations. (Twig and
I too can make do with cleaning all my datastore data for the
transition, so that's good.
What you you mean, Marcel, by alias your old application id?
On May 31, 8:25 am, Marcel Overdijk marceloverd...@gmail.com wrote:
I think there is an option to alias your old application id. So maybe
Nice looking site... just on casual perusal, two things jumped out at me:
1) Polish the navigation a bit more. For example, you zoom into the
map, click on a trail, click through to the trail's page, then hit the
browser back button (seems to be the only way to get back) - and
you're now zoomed
Nice site!
Brandon Donnelson
http://gwt-examples.googlecode.com
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googling outside the list turns up a few examples:
http://googleappengine.blogspot.com/2011/03/high-replication-datastore-solid-choice.html
On May 31, 1:26 pm, Ian Marshall ianmarshall...@gmail.com wrote:
I too can make do with cleaning all my datastore data for the
transition, so that's
Appengine uses servlet spec 2.4 so the compatible jstl library is
version 1.1. the jsp library
is version 2.0.
You compile w/ those locally, and yes, they are provided by the
container for production deployment
so you don't include them in your war file/directory.
If your custom tag is
I didn't look at your snippet in detail, but you need transactions,
and that means the entities
need to be in the same entity group, that is have same ancestor.
On May 31, 2:53 am, pavb pavieillardba...@gmail.com wrote:
Hi,
Yes all the datastore insert, update, delete done in the transaction
Adding to Ian's suggesting, you might want to look at Query Cursors
and
pre-prepare reports ahead of time...
or pre-prepare reports iteratively, compress, store as blob and
download...
On May 31, 1:24 pm, Ian Marshall ianmarshall...@gmail.com wrote:
You can reduce time-out issues if you
They are if you exclude them from being deployed as static [1]
[1]
http://code.google.com/appengine/docs/java/config/appconfig.html#Including_and_Excluding_Files
On Sun, May 29, 2011 at 6:13 PM, Nichole nichole.k...@gmail.com wrote:
Hello,
Static pages within appengine are not picked up
h2The server encountered an error and could not complete your
request.pIf the problem persists, please A
HREF=http://code.google.com/appengine/community.html;report/A your
problem and mention this error message and the query that caused it./h2
h2/h2
/body/html
at
Thanks, Nichole. To fix the problem, I downgraded my version of JSTL to
1.1.2 and added the standard taglibs 1.1.2 library as well (which is what I
have a compile-time dependency on). This seems to have solved the issue
caused by the JSTL 1.2 vs. 1.1.x conflict. I should mention that I
Hi,
entity group is not useful at rollback but rather limits you to which
updates you can do: all the entities you touch in a single transaction
must be in the same entity group.
So, designing your groups properly is a key design issue in GAE to
avoid unnecessary complexity when you later need
Huh?
As you are only able to do work in a single transactional unit-of-work
on a single entity-group, rollback must be considered usefull.
In the above mentioned snippet, an Account entity is looked-up,
updated and a child entity TransactionRecord is added, all in a single
entity-group, namely
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