As for your main question,
I assume from the API :: Key = A datastore GUID. A Key instance
uniquely identifies an entity across all apps, and includes all
information necessary to fetch the entity from the datastore with
DatastoreService.get(Key).
you can get an entity by key:
Entity get(Key
I have been trying to use Batik SVG Toolkit (http://
xmlgraphics.apache.org/batik/) to generate images on GAE with no luck.
I get a ClassNotFoundError on org/w3c/dom/svg/SVGDocument. I have
included ALL the Batik jars in my application but can't seem to locate
which jar this class should be in.
Try
new KeyFactory.Builder(parentKind, id).addChild(childKind, id).getKey
();
On Nov 16, 4:46 am, elvin e.v.c...@gmail.com wrote:
Good day.
As far as documentation states, The key value includes the key of the
entity group parent (if any) and either the app-assigned string ID or
the
It is not supported in Google App Engine JPA/JDO
http://code.google.com/intl/pl/appengine/docs/java/datastore/usingjdo.html#Unsupported_Features_of_JDO
Join queries. You cannot use a field of a child entity in a filter
when performing a query on the parent kind. Note that you
Thanks Rusty, I've already searched there and have seen the
suggestions. I have been having a hard time believing that there is no
way to do this when using google app engine but am more or less
convinced at this point.
On Nov 16, 6:06 pm, Rusty Wright rwright.li...@gmail.com wrote:
As a follow up on this -- task queue throttles at queries per second,
not dequeues per second. The current limit is 20 qps. You can't fool
it by using long running request handlers. I tried it in production.
Still looking for ways to get more than 20 qps for background jobs.
Has anyone
On Tue, Nov 17, 2009 at 7:02 AM, Dan Dubois uvico...@googlemail.com wrote:
I have been trying to use Batik SVG Toolkit (http://
xmlgraphics.apache.org/batik/) to generate images on GAE with no luck.
I get a ClassNotFoundError on org/w3c/dom/svg/SVGDocument.
Perhaps you need the Java binding
I have read a lot of posts with people having trouble with accessing
the child objects of their parent but i haven't found a solution to my
problem. So i want to have Shared objects per Users. Such as:
public class User {
private Key key;
private String name;
private String email;
I install eclipse 3.5.1 from aptitude repository and have install
AppEngine. But I see error (opened bug on
http://code.google.com/p/google-web-toolkit/issues/detail?id=4240).
I also search libstrc but found this only:
sudo aptitude search libstdc
v libstdc++-
dev
-
i libstdc+
+6
Is anybody having problem with xmpp.getPresence not providing valid
presence information for GTalk clients?
Using very simple function to check the availability of a GTalk
client:
XMPPService xmpp = XMPPServiceFactory.getXMPPService();
if (xmpp.getPresence(agentJid).isAvailable()) {
I'm attempting to configure JSF 2.0 to run on Google App Engine using
the following setup:
Apache Xalan-J 2.9.0
Google AppEngine for Java SDK v1.2.5
Sun Java ServerFaces 2.0 FCS
Unified Expression Language 1.1 API (el-api-1.1.jar) and
Implementation (el-impl-1.1jar)
I followed the procedure
I am beginning to see this problem when uploading my application to
the AppEngine. Here is the stack trace:
com.google.appengine.tools.admin.AdminException: Unable to update app:
Error writing to server
at com.google.appengine.tools.admin.AppAdminImpl.update
(AppAdminImpl.java:62)
at
Nick,
What's likely happening here is that the fields you need are being lazily
loaded. Properties that aren't indexed like Text or Blobs are retrieved when
you call the appropriate getter. For instance, if I have a model Car with a
Text Description field, I would have to do this:
// How to get
My site was fine yesterday, but right now it's really slow and static
resources like CSS files and images are not loading.
Is anyone else experiencing this?
My site is www.jmccabe.com/jim/
- Jim
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Strange, now it's all good. But for a good 5-10 minutes, the site was
unusable. Not just for me in Seattle either - my sister in New York
had the same problem.
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Resistance is futile.
Kris wrote:
Thanks Rusty, I've already searched there and have seen the
suggestions. I have been having a hard time believing that there is no
way to do this when using google app engine but am more or less
convinced at this point.
On Nov 16, 6:06 pm, Rusty Wright
You could have a class UserProject
class UserProject {
private Key userKey;
private Key projectKey;
}
Then make User.projects a ListProject and fill it with their projects right
after you fetch the User (and coat it with Collections.unmodifiableList() as a
reminder that it should be
Hi App Engine developers,
We're working on some improvements and additions to the bulk loader to
make it easier to move data between the App Engine Datastore and other
data files you may have. If you're doing this right now, we're looking
for some beta testers.
Two specific issues we're addressing
Tried it again, two different requests to www.jmccabe.com timed out.
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Is there some way to pause before retrying the database transaction? If you
don't, then it seems to me that the processes that are banging into each other
are going to keep failing. I'd like to add a pause for a random amount of time
in the catch block.
leszek wrote:
I have more information on this now.
If I navigate to the active version from the App Engine control panel,
it loads up super fast and works great. But the domain support from
Google Apps is not working. I will file a ticket with them instead of
treating this like a GAE issue.
- Jim
--
You
On Nov 17, 2:59 pm, Rusty Wright rwright.li...@gmail.com wrote:
Is there some way to pause before retrying the database transaction? If you
don't, then it seems to me that the processes that are banging into each
other are going to keep failing. I'd like to add a pause for a random amount
I resized images(.gif format) with App Engine for Java,
ImagesService . Make them smaller. But I found the quality of resized
image was much worse than I expected. Text on images was not clear. I
alse resized them with PhotoShop. The quality of images which resized
by PhotoShop are much better
Hi.
I agree with Kris in that this feature is absolutely necessary. However,
maybe this feature will be included in this other more general issue
http://code.google.com/p/googleappengine/issues/detail?id=217 .
Maybe someone from Google can tell us what's the best way to do it, or
whether we can
Ah, thanks. So if I knew how many servers my cloud is made of then I should
use that number for my MAX_RETRIES. ;-)
I'm curious about how others are handling the exceptions. The
JDOCanRetryException is subclassed by other exceptions that don't seem like
things I'd want to retry, but perhaps
Can you convert its format with the images service? Gif is 8 bits per pixel so
if it's resizing it in that format I can understand why it would end up ugly
(when it's merging pixels it's choosing the result color from the existing
limited 256 color palette). If you can convert its format, try
I think my try/catch is missing a catch at the end:
catch (final Throwable ex) {
exception = ex;
break; // fail
}
Rusty Wright wrote:
Ah, thanks. So if I knew how many servers my cloud is made of then I
should use that number for my
Hi.
Though it is likely already to have tried.
If the state is [is not available]
please invite it from GMailchat or GTalk to
XMPP Addresses
([app...@appspot.com] or [anyth...@app-id.appspotchat.com],etc.)
Please confirm Gtalk display that XMPP Addresses
([app...@appspot.com] or
first request: login by username and pwd, and create the session
_session = new FbdanciSession();
_session.setUser(user);
FlexContext.getFlexSession().setAttribute(client, _session);
second request: update the _session
_session = FlexContext.getFlexSession().getAttribute(client);
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