Finally found the problem that in documentation its not mentioned that
few of the jars need to be included. They did mention few but not all,
may be documentation need to be fixed.
So it worked now. but now getting another problem, data is not being
persisted in local file. I am using following cod
Take a look at this, I think it should help =>
Google I/O 2009 - Scalable, Complex Apps on App Engine:
http://www.youtube.com/watch?v=AgaL6NGpkB8
--
You received this message because you are subscribed to the Google Groups
"Google App Engine for Java" group.
To post to this group, send emai
End Very kind from you !! And you haven't asked twice.
Anyway I will be back on the main argument that is the fact that I
think DataNucleus is not working like all other JPA engines.
Those lines you reports only says that flush synchronize the state to
the underling database, nothing strange
I've already asked you twice to post your class. You haven't. That
provides no context for any comment, and I've already told you why
datastore operations are delayed until commit/flush. Why do you think
there's a flush() method if you think things ought to go straight to
the datastore ?
JPA2 spe
Same problem here, the image api is very poor.
On Mon, Apr 5, 2010 at 11:25 PM, John Patterson wrote:
>
> On 5 Apr 2010, at 18:39, Jim wrote:
>
> Hi there,
>>
>> First a bit of background:
>> I'm building an app that maintains a number of images. Once the images
>> are uploaded I use the images
I did some more tests, printing the key IMMEDIATELY AFTER the
em.persist and these are the results:
- OpenJPA (1.0.1): key assigned
- EclipseLink (1.0.1): key assigned
this with the results of yesterday's tests:
- Hibernate (3.4.0.GA): key assigned
- DataNucleus (1.1.5): key null
Two considerat
What about doing this?
Have your user activity object keep track of friends as well... So
something like
Class UserActivity
{
Key id;
String statusMessage;
Date time;
User user;
List friends
}
Then when you want to display the "wall", you just query all User
Activity objects that have your user
I was testing my splitting library. I had a 2GB file accessible in my
test environment. From that I created a 2GB blob and set it as a
property of my Entity. My library then split that property into
entities around 1MB each, and then did multiput 500 of those 4 times
and then whatever was left on t
I put some stuff on http://super-easy.blogspot.com ... hope it helps.
On May 16, 5:13 am, Drasko wrote:
> I am a bit slow in creating the GWT part ... but it looks already much
> better.
> The latest code is running onhttp://super-easy.appspot.com
> There will be soon some content on super-easy.b
Using version has one major problem. The ssl certificate is for URIs
which is like *.appspot.com . The browser complained that you are
probably visiting a malicious site when you browse a ssl page of a
specified version.
On 5月18日, 下午5時29分, Erdinc Yilmazel wrote:
> You are not allowed to access th
Sounds like an interesting functionnality to add to GAE.
May be you could create a feature request :
http://code.google.com/p/googleappengine/issues/list
On 18 mai, 11:29, Erdinc Yilmazel wrote:
> You are not allowed to access the same data from different applications
> (Using different appIds)
I have tried, but it does not. I have ro specify "kind_name" as a
parameter. But I want to list all kinds. If I do not specify the
parameter, the stat returns null.
Ladislav.
On 18 kvě, 11:16, Didier Durand wrote:
> Hi,
>
> did you try the sample code
> athttp://code.google.com/appengine/docs/j
Well, I'm not saying "DataNucleus is not a good product", I'm using
it !!
On May 18, 9:10 pm, datanucleus wrote:
> http://www.datanucleus.org/development/test/jpa_tck.html
>
> --
> You received this message because you are subscribed to the Google Groups
> "Google App Engine for Java" group.
Sorry I can't get your point about Optimistic Locking.
If I do some insert inside a transaction that is at least with
isolation level "read committed" I don't have any kind of problem with
versioning.
Can you please give me an example of how can I have such a problem ??
Thx.
On May 18, 9:09 pm,
Hi,
First time i am trying to run local junit test in eclipse. I am following
exactly what is written here
http://code.google.com/appengine/docs/java/tools/localunittesting.html
but no use, i am getting following error.
com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package
'da
http://www.datanucleus.org/development/test/jpa_tck.html
--
You received this message because you are subscribed to the Google Groups
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
go
Define your class first, since without a context there is no point to
this.
JPA uses optimistic txns *only* and so nothing should go in the
datastore before flush(). Nothing. Any implementation that does put
something in the datastore before then is actually problematic since
it can cause optimist
>From ejb-3.0-persistence-specification, section 3.2 I can read that
"A managed entity instance is an instance with a persistent identity
that is currently associated
with a persistence context."
>From this I understand that em.persist() (paragraph 3.1.1) should give
me the persistent identity.
I think you're best bet is to do all the work in the write, and have each
profile's page constantly updated and ready for an extremely simple read.
For one, this will significantly reduce your costs, because everyone reads
more than they write. Two, by the time you get big enough to surpass the 30
> and discovered that the entity key was not populated, but remain
> "null" until the transaction is committed or a flush is done. This was
> very confusing to me, because I know that, from JPA specs, the persist
> change the state of the entity from new to managed, and being managed
> means that t
Drasko,
I checked your demo,its great. I found one small problem. For Yahoo and
google it works fine but for AOL and OpenId it go to goole login page. does
this mean we can use only google and yahoo or its something you have just
not provided correct info while creating the urls.
Thyanks,
Ravi.
2
Also, I should mention that in general, use HTTP POST for anything
destructive. An HTTP GET should not change data. It's too easy for a user to
reload a page without a warning or a web crawler to accidentally invoke some
action.
On Tue, May 18, 2010 at 8:59 AM, Erich wrote:
> Thanks for the tips
As of 1.3.4 the method createFederatedLoginURL is being merged into
the "standard" createLoginURL method. Same happend to other
"federated" methods.
UserService userService = UserServiceFactory.getUserService();
to get the authenticated user:
User user = userService.getCurrentUser();
to
Hi all,
I would like to share with you some concerns I have about the way
DataNucleus/DataStore manage identities and their persistence.
All started when I tried to do a simple
em.persist(entity);
and discovered that the entity key was not populated, but remain
"null" until the transacti
Hi
I'm pretty new to GAE. I'm using the Java SDK. My problem is I cannot
access my app from the main URL (eg. foo.appspot.com). Only through
the version URL (eg. alpha-1.latest.foo.appspot.com). A little history
I created an app and I deployed the first version. I let the version
in appengine-web
Hi all,
I'm trying to query JPA datastore.
Let's assume that we have a Product entity with ProductId as the
primary key and Prodqty and ProdPrice as attributes.
An example might look like this.
ProductId Prodqty ProdPrice
1501000
234998
3
hello,
I made a stand alone project for uploading the KML file (ie reading
the file through JAK ) but when i tried to integrate the code in a web
app project it showed me a runtime error stating that it is not able
to read the file so i wanted to know that whether JAK is compatible
with google app
Thanks Li for looking into it.
For me 1-2 minute delay is fine, problem is like contains query(for
finding friend's data), i can pass max 30 user id, so basically on one
page i will be able to show max 30.
But in other case where wall type data need to be saved queries need
to perform faster and ne
This is an interesting problem, I am not an expert on database design,
especially key-value based datastore, but I will try to answer this
question.
For me, the design like
Class User{
Key id;
String name;
String email;
List friends.
...etc
}
makes perfect sense, and as you said, you can do more
Hi,
I am trying to design a website like Facebook, where user will have
friends and will have wall where they can see there friend's updates
etc. While designing it on GAE i got confused with what will be the
best approach like data duplicate, data read time or data write time
etc
Friend's Design:
Hi,
Did you correctly parametrize the storage strategy for inheritance at
the root level of your hierarchy tree:
check
http://www.datanucleus.org/products/accessplatform/jdo/orm/inheritance.html
and
http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Inheritance
I remember hav
Hello
Following is what I get after adding new field to my class:
--
org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException: The
class "net.jzaruba.appengine1.Article" is not persistable. This means that
it either hasnt been enhanced, or that the enhanced version of the file is
not in
You are not allowed to access the same data from different applications
(Using different appIds), however you can deploy different versions of your
application and they will run on separate urls. (Something like
.latest..appspot.com. So you can create a version named
admin for that purpose which is
Hello,
I want to create two webapps accessing the same datastore
- Admin webapp
- enduser webapp
I want to separate out these, so that I will not end up creating one big
application and that in turn will have an effect on the startup time of the
application on the appengine.
-Aswath
--
You rece
Hi,
did you try the sample code at
http://code.google.com/appengine/docs/java/datastore/stats.html
with __Stat_Kind__ ? Should do what you want.
didier
On May 17, 10:51 pm, Laco Skokan wrote:
> Hello,
>
> did anybody tried to list all entity kinds from the datastore? How can
> this be done?
>
Hi,
Some code would be helpful, have you checked the form for errors? you
can use httpfox to see whats going to the servlet.
You can use this line of code to get the blob info, "LOLUPLOAD" being
the name of the FileUpload widget.
private BlobstoreService blobstoreService =
BlobstoreServiceFactory
36 matches
Mail list logo
