Re: [appengine-java] Re: Length of member variable names contributes to storage space used?

Also the class name is used in the Key as the kind. To get the shortest keys you would need to use short class names and numeric long ids (rather than Strings). Having small keys is important because they are stored many times per entity in indexes and more than once for the entity itself

[appengine-java] Re: dynamically resizing a textarea

This is on the client side of the application. However I've finally found a solution to the problem... It's pretty simple and most experienced developers would probably know about it... But yeah, even though not all HTML attributes are accessible directly from the GWT TextArea class, I'm pretty sur

[appengine-java] Geomodel Java: Proximity Search

I am trying to use the proximity search of Geomodel. However, I am facing a problem, which I am not sure what it is, but I think it is related to either my PersistentManager or baseQuery. I ran the query, however, while my database is not empty, I got null results. Here are my codes: public clas

[appengine-java] Tag clouds on GAE for Java - how to store and how to aggregate

Hi, I'm looking to store entities using GAE Java which have 1-many tags. I would like to display a tag cloud, so will need to know how many times each tag occurs (can't use aggregate functions and group by on GAE to do this like I would in SQL). And when I click a tag I would like to retrieve all e

[appengine-java] Re: Length of member variable names contributes to storage space used?

Hi Mark, I would say yes: the datastore viewer shows the data with couples (name,value), name being the origianal attribute name in the java class. Moreover the doc says "Each persistent field of the class represents a property of the entity, with the name of the property equal to the name of the

[appengine-java] Re: JDO - How to Model a Transferable Relationship?

Hi, I think that you have to go for an unowned 1-to-many relationship to achieve what you want else your child is stuck with its 1st parent. See for samples:http://code.google.com/appengine/docs/java/datastore/ relationships.html#Unowned_Relationships didier On Jul 17, 10:44 pm, max <6738...@gm

[appengine-java] Re: strange datastore status

Dear all, I've already found the reason. It is related to my careless. There is a tiny difference between the two apps which caused the problem. And I didn't notice it. Sorry for the inconvenience. On 7月20日, 上午11时24分, "cse.zh...@gmail.com" wrote: > Dear all, > Today I encountered a strange situa

[appengine-java] strange datastore status

Dear all, Today I encountered a strange situation. I have used app engine SDK 1.3.5. And I have two applications on https://appengine.google.com/ assume they are *myapp* and *myapp-sandbox*. *myapp* and *myapp-sandbox* have the same code. I tried to execute a same section of code towards these 2 a

[appengine-java] Re: Dance Dance Robot error / Channel API

I have the same error using dev server. If you deploy your app to production server, below error log shows channel service is not enable. exception: com.google.apphosting.api.ApiProxy $FeatureNotEnabledException: The channel service is not enabled. It seems we have to patiently wait:) On Jul 20

[appengine-java] Re: Dance Dance Robot error / Channel API

Thanks for the tip about channel.js. This is what I needed. Now I get an error when pushing a message to a client. I get this: com.google.appengine.api.channel.ChannelFailureException: An unexpected error occurred. Caused by: com.google.apphosting.api.ApiProxy$ApplicationException: ApplicationErr

Re: [appengine-java] Updated Eclipse Plugin ?

>From your eclipse itself(having an older version of gae), you can update to latest version by using software updates option in elclipse. Thanks Hari On Jul 19, 2010 9:39 PM, "Navaneeth Krishnan" wrote: I tried out the latest version of the eclipse plugin for GAE http://code.google.com/appengi

[appengine-java] PMF.get().getPersistenceManager() freezes after restart

We are seeing some strange behavior... after we stop/restart the dev server it freezes when trying to get an instance of the PersistenceManager. Steps to repeat: 1) We execute a query similar to the AppEngine example: http://code.google.com/appengine/docs/java/datastore/queriesandindexes.html#Intr

[appengine-java] Persistence manager for all system

Hi! I have a doubt of since administering a Persistence manager for an application(for example web). When close the persistence manager? When commit the transaction? The pattern singleton the example? Because if I continue the help of google, the pattern, close a persitence manager, for example:

[appengine-java] App Engine Java servlet clearing my Content-type Header for form POST from python

Hi, I'm running a servlet on Google App Engine. When I try to post multi- part form data to the url from a python script, locally it works, but when I deploy to app engine, it complains that the content-type header is null. When I print out the content type header to my logs, it is indeed correc

[appengine-java] next gen queries

In Alfred Fuller's presentation (http://www.youtube.com/watch? v=ofhEyDBpngM&feature=channel), he mentioned that limit of 5000 list items and need for number of composite indexes for list (i.e. 2 value search from list, 3 value search from list etc) will be removed. As per video, I think he mention

[appengine-java] Re: is there any solution/idea how blacklist IP in "realtime" ?

Yes, I already have such solution, but It still does eat some resources (minimal if written correctly) But thank for answer John, only think I am afraid I wake up and my dayly budged will be eaten by some kind of dos attack done while I was sleeping, I still think since you can upload dos.xml very

Re: [appengine-java] local_db does not exist; cannot store persistent data

Hello Erencie. have you tried to save persistence objects in data store? and have you tried to retrieve all data saved in your data store? does it show any error? are you using something like JUnit or something besides the code shown in google tutorials? Rgds. R 2010/7/19 Erencie > I use Goo

[appengine-java] Re: Geomodel in Java

Now, I am trying to use the proximity search in Geomodel. However, I am facing a problem, which I am not sure what it is, but I think it is related to either my PersistentManager or baseQuery. I ran the query, however, while my database is not empty, I got null results. public class HowToUseGeocel

[appengine-java] Updated Eclipse Plugin ?

I tried out the latest version of the eclipse plugin for GAE http://code.google.com/appengine/docs/java/gettingstarted/installing.html to realize that the bundled app engine version is 1.3.3. If there any plan to upgrade it to the latest SDK (1.3.5) ? When can we expect a new release ? Also, is

[appengine-java] Re: Roo + GWT + Security on AppEngine

> 2) i had some issues with static files, spring security doesnt protect > static html files. I do have similar problem. Spring security works pretty fine for me, but I cannot understand why I can't limit access to HTML host page. The current situation is that my application starts and I have to h

[appengine-java] local_db does not exist; cannot store persistent data

I use Google app Engine plugin for Eclipse and managed to make the "guestbook" demo run successfuly. When I create my own app by following the code pattern of "guestbook", sth weird happens: Jul 19, 2010 6:08:46 AM com.google.appengine.api.datastore.dev.LocalDatastoreService load INFO: The backing

[appengine-java] Re: java.net.InetAddress and logback 0.9.21

I'm running into the same issue (I'm using logback 0.9.21). I tried to configure Logback manually using the JoranConfigurator. Well, I started extending the JoranConfigurator trying to avoid the call to the method ContextUtil.addHostNameAsProperty() in the ConfigurationAction class that is the on

[appengine-java] local_db does not exist; cannot store persistent data

I use Google app Engine plugin for Eclipse and managed to make the "guestbook" demo run successfuly. When I create my own app by following the code pattern of "guestbook", sth weird happens: Jul 19, 2010 6:08:46 AM com.google.appengine.api.datastore.dev.LocalDatastoreService load INFO: The backing

[appengine-java] Re: Entity relationship table

My 2 cents: if all your users are of type Person and it's a root entity, you can also save some space by storing Key ids instead of Key instances (you save the redundant type name etc). On Jul 19, 5:53 am, "Ikai L (Google)" wrote: > The best practice is probably to create list properties with Key

[appengine-java] Re: App Engine integration with Google Apps Marketplace

I don't know if there are any differences, since I never tried the other way. I'll try to investigate in the next days, but I think this could be helpful for things such as https redirect and similar issues. Maybe a word from GAE team will help (anyway, some blog posts about OpenID have been annou

Re: [appengine-java] C++ in GAE

There is software that can translate some subset of C++ to Java. Another option is to create a webservice interface over your C++ libraries and host them outside of App Engine. On Mon, Jul 19, 2010 at 8:21 AM, Gal Dolber wrote: > No... > > 2010/7

[appengine-java] Re: PDF Files

You are right conor, i set the content to application/pdf and i cand display it. but my problem is that in some browsers and OS(Mac) ,the pdf is not displyed, the download starts automatically with a default name, i want to have control on the name given to the file before it is downloaded On

[appengine-java] Re: PDF Files

yes exatky On Jul 18, 1:12 pm, Khor Yong Hao wrote: > Your Problem is not using iText to generate PDF content and download it, but > is able to allow user upload their own PDF and providing download, right? > > On Thu, Jul 15, 2010 at 3:25 PM, dovm wrote: > > Hi, > > > Check this one > >http://w

Re: [appengine-java] Re: is there any solution/idea how blacklist IP in "realtime" ?

I believe some people maintain their own request count by ip address using memcache and restrict access using a filter. On 19 Jul 2010, at 20:09, Marcus Brody wrote: I am missing something ? So you guys are sitting in web console and watch how many requests came from given IP address ? This

[appengine-java] Re: App Engine integration with Google Apps Marketplace

Hi Lorenzo, Thanks for taking the time to help ! I tried to call userService.createLoginURL with federatedIdentity = "https://www.google.com/accounts/o8/site-xrds?hd=domain1.com"; as you suggested and it seems to work :) But it also works with federatedIdentity = 'domain1.com" ! The produced UR

[appengine-java] Length of member variable names contributes to storage space used?

Hi, I read in a post that the length of member variable names contributes to the amount of storage space your app uses, example: class Farm { private String mFarmersFavoriteCropToPlant; } would take more space to store than: class Farm { private String m; } migh

[appengine-java] Re: is there any solution/idea how blacklist IP in "realtime" ?

I am missing something ? So you guys are sitting in web console and watch how many requests came from given IP address ? This has to be done automatically ... somehow. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to thi

[appengine-java] How to "close" an object before second transaction?

Here's the psudo-code for one of my methods: 1. Get PersistenceManager (pm) 2. pm.fetchObject1 3. pm.beginTransaction 4. pm.modifyObject1 5. pm.commit 6. pm.fetchObject2 7. pm.beginTransaction 8. pm.modifyObject2 9. pm.commit however I get this error "can't operate on multiple entity gro

Re: [appengine-java] C++ in GAE

No... 2010/7/18 otuyama > Hello, > Is it possible to compile C++ code in JVM bytecode? I would like to > run > legacy code in Google App Engine for Java. Of course, C++ and Java > libs will > be incompatible, but it could be fixed with wrapper libs. > Thanks. > Julio > > -- > You received this m

Re: [appengine-java] task queues and retries

AFAIK if you don't catch exceptions, you'll get HTTP 500 error. Can you post your code? Are you sure that you do not try/catch the exception? fabrizio On Mon, Jul 19, 2010 at 12:38 AM, Philip Tucker wrote: > One of my tasks encountered a failure and wasn't retried. I think it's > because the s

[appengine-java] Must only return a redirect from a Blobstore upload callback??? What does it mean?

Hi all! I have two jsp, -one whith a form for upload a file -one for managing upload But, stil the upload goes fine , I recive this warning 19-lug-2010 12.11.15 com.google.appengine.api.blobstore.dev.UploadBlobServlet$3$2 write GRAVE: Must only return a redirect from a Blobstore upload

[appengine-java] Share session between 3rd party domain (google apps) and appspot.com?

Hi, is it possible to share the session between a google apps domain and appspot.com? I wanted to use the ssl of appspot.com for secure login and the redirect back to regular domain. Regards -- You received this message because you are subscribed to the Google Groups "Google App Engine for Jav

[appengine-java] Re: How to get the BlobKey from a file which was uploaded

On Jul 16, 7:02 pm, Jairo Luna wrote: > Do you speak spanish? I have an idea but I don't know english very Sorry, I don't. However your answer was pretty understandable :) > I don't know if it's the best way but when I upload an image, I save > the blobKey.getKeyString() into the User's model. T

[appengine-java] Re: JCache

Yes it needs to be “serializable”. Thanks for your answer. pdias On 19 Jul, 09:30, Hariharan Anantharaman wrote: > As long as the objects are serializable, I believe we can store them in > jcache. > > ~hari > > On Jul 19, 2010 9:15 AM, "pdias" wrote: > > Is possible to save object instances usin

[appengine-java] Re: Unable to execute query for a large number of entities

I believe (and this may be wrong) that the index data is only created when the object is inserted/updated. Therefore, any existing data will be not covered by the new index and won't be retrieved with any queries which are based upon the index. Updating them or reuploading them should solve the i

[appengine-java] Re: About Google App Engine & Google API

Hi there, Now, I think that I should create an application on GAE. It will list some libraries on Google Map. We can search, look for books and make friends with book-lovers at somewhere near you. I'll try to use Google Web Toolkit in my project and some another Google APIs. This project will serve

Re: [appengine-java] JDO creates entities when I don't ask it to

Where do u commit the transaction? I hope it is not after saving of A. Could you confirm if B and A are persisted and committed seperately and independent of each other. Thanks Hari On Jul 19, 2010 9:15 AM, "pbadn" wrote: I am having a problem that is confusing me. I have two entities, A and B

[appengine-java] error when persist more than 1 object

I am trying to learn GAE by writing simple java programs. This is the coding I use to try JPA: EntityManager em = null; try { em = EMF.get().createEntityManager(); int i = 6; Trade5min t5 = new Trade5min(); t5.setStkCode(i); t5.settDate("2010-07-15"); t5.setTradeRec("this i

Re: [appengine-java] JCache

As long as the objects are serializable, I believe we can store them in jcache. ~hari On Jul 19, 2010 9:15 AM, "pdias" wrote: Is possible to save object instances using JCache? I have tried and received the following message: javax.servlet.ServletException: java.lang.IllegalArgumentException:

[appengine-java] Re: rename a app-id

create new app with your desired ID and forward all request :P On Jul 18, 3:34 pm, aswath satrasala wrote: > I do not want to delete the app.  I have user data. > > -Aswath > > On Sun, Jul 18, 2010 at 6:57 PM, jacek.ambroziak > wrote: > > > Not really, but you can delete the app > > and after it

[appengine-java] Re: Active transactions

try follow this pattern for transactions public void doSomthingWithEntity(T entity) { PersistenceManager pm = getPersistenceManager(); Transaction transaction = pm.currentTransaction(); try { transaction.begin(); //

[appengine-java] Re: Active transactions

Hi lisandrodc, please carefully read all documents http://code.google.com/appengine/docs/java/datastore/ and http://www.datanucleus.org/products/accessplatform_1_1/guides/jdo/daolayer_design.html Also many people cannot read spanish, if you would write in english you may get more answers. I thi

[appengine-java] Re: App Engine integration with Google Apps Marketplace

The link to generate login URL is different for apps accounts String appsLoginUrl = userService.getOpenIdLoginUrl(redirectTo, loginDomain, "https://www.google.com/accounts/o8/site-xrds?hd="; + loginDomain, attributesRequest); loginDomain is obvious

[appengine-java] is there any solution/idea how blacklist IP in "realtime" ?

Hello, I was looking for some solution which would allow me "realtime" blacklist IPs. I didnt find any. "Realtime" I mean without manually getting IP and change dos.xml and upload it. A man can upload dos.xml to bann certain IPs. Can this be done somehow (anyhow) programmatically, even using home