[appengine-java] Re: polymorphism in relationships is not yet supported?
Hi lisandroc,
check out
http://code.google.com/appengine/docs/java/datastore/relationships.html#Polymorphic_Relationships
for details
didier
On Jul 18, 5:08 am, lisandrodc lisandr...@gmail.com wrote:
I have a problem when assign an object using polymorphism.
Received a child of type model.Empate for a field of type
model.Resultado. Unfortunately polymorphism in relationships is not
yet supported.
par1=new Partido(23, new Empate(), eq1,eq2, fecha);
The constructor:
public Partido(Long numero, Resultado resultado, Equipo equipoLocal,
Equipo equipoVisitante, Date fechaPartido) {
super();
this.numero = numero;
this.resultado = resultado;
this.setEquiposPartido(new ArrayListEquipo());
this.equiposPartido.add(equipoLocal);
this.equiposPartido.add(equipoVisitante);
this.fechaPartido = fechaPartido;
}
The class Empate extends the class Resultado(parent).
Regards
Lisandro
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[appengine-java] Re: DataNucleus Enhancer failed to run
The workaround suggested here might be useful to anyone with this problem: http://code.google.com/p/googleappengine/issues/detail?id=1862 On Jul 4, 8:53 pm, Ravi ping2r...@gmail.com wrote: Hi, I was working happily, changed few lines of java code(didnt touch any eclipse setting or installed any thing new or added extar jar in classpth) and then started getting follwoing error. Please help spent half a day and not able to understand how this error emerged. Googled this error an dpeople are saying that if classpth goes long then this error comes but i have not changed classpth since few days, just writing new java files. DataNucleus Enhancer has encountered a problem Error Sun Jul 04 18:45:14 BST 2010 Cannot run program C:\Program Files (x86)\Java\jdk1.6.0_17\bin \javaw.exe (in directory Y:\projects\New-Eclipse-Workspace \TestGwt): CreateProcess error=87, The parameter is incorrect eclipse.buildId= java.version=1.6.0_20 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product -clean java.io.IOException: Cannot run program C:\Program Files (x86)\Java \jdk1.6.0_17\bin\javaw.exe (in directory Y:\projects\New-Eclipse- Workspace\TestGwt): CreateProcess error=87, The parameter is incorrect at java.lang.ProcessBuilder.start(Unknown Source) at com.google.gdt.eclipse.core.ProcessUtilities.launchProcessAndActivateOnErro r(ProcessUtilities.java: 195) at com.google.appengine.eclipse.core.orm.enhancement.EnhancerJob.runInWorkspac e(EnhancerJob.java: 78) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorksp aceJob.java: 38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: CreateProcess error=87, The parameter is incorrect at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.init(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 5 more -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: DataNucleus Enhancer failed to run
Hi Ravi, To fix it once for all, I declared my classes to be enhanced 1 by 1 in Eclipse under Project Properties Google App Engine ORM A bit painful to do initially bu then pb is gone forever ! didier On Jul 4, 7:53 pm, Ravi ping2r...@gmail.com wrote: Hi, I was working happily, changed few lines of java code(didnt touch any eclipse setting or installed any thing new or added extar jar in classpth) and then started getting follwoing error. Please help spent half a day and not able to understand how this error emerged. Googled this error an dpeople are saying that if classpth goes long then this error comes but i have not changed classpth since few days, just writing new java files. DataNucleus Enhancer has encountered a problem Error Sun Jul 04 18:45:14 BST 2010 Cannot run program C:\Program Files (x86)\Java\jdk1.6.0_17\bin \javaw.exe (in directory Y:\projects\New-Eclipse-Workspace \TestGwt): CreateProcess error=87, The parameter is incorrect eclipse.buildId= java.version=1.6.0_20 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product -clean java.io.IOException: Cannot run program C:\Program Files (x86)\Java \jdk1.6.0_17\bin\javaw.exe (in directory Y:\projects\New-Eclipse- Workspace\TestGwt): CreateProcess error=87, The parameter is incorrect at java.lang.ProcessBuilder.start(Unknown Source) at com.google.gdt.eclipse.core.ProcessUtilities.launchProcessAndActivateOnError(ProcessUtilities.java: 195) at com.google.appengine.eclipse.core.orm.enhancement.EnhancerJob.runInWorkspace(EnhancerJob.java: 78) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java: 38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: CreateProcess error=87, The parameter is incorrect at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.init(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 5 more -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: PDF Files
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 dovm...@gmail.com wrote: Hi, Check this one http://www.pdfjet.com/java/index.html They claim to support Google App Engine =Dov On Jul 15, 7:57 am, Daniel vedm...@gmail.com wrote: But it says that on Will it play in App Engine That its incompatible: iText Version(s): ? Status: INCOMPATIBLE * iText relies on several classes not in the JRE class whitelist including java.awt.Color and java.nio.MappedByteBuffer. A bug has been filed athttp:// sourceforge.net/tracker/?func=detailatid=365255aid=2810312g On Jul 15, 7:51 am, Shyam Visamsetty shyamsunder...@gmail.com wrote: Chris, Did you want to generate a PDF File on the GAE? If yes, you can use the iText library for generating the pdfs on the app engine. You can have a servlet to download the PDF file you generated. Thanks, Shyam Visamsetty On Jul 14, 1:36 pm, chrischelmi michelvo...@gmail.com wrote: Helle every body, I am working on a Google App Engine Project that consists of uploading PDF files and displaying it after. I use a Blob to store the PDF file i want to do a process to download this PDF file by giving the a specifics name. Is there a way to generaye PDF files with GAE? i have a process to display the PDF but i want to download it direcly from an URL. -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: rename a app-id
No, you have to create a new one and transfer everything. On Jul 18, 12:02 am, aswath satrasala aswath.satras...@gmail.com wrote: Hello, Is there any way I can rename my app-id. -Aswath -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: rename a app-id
Not really, but you can delete the app and after it is gone create a new one with the (available) name you want On Jul 18, 12:02 am, aswath satrasala aswath.satras...@gmail.com wrote: Hello, Is there any way I can rename my app-id. -Aswath -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: rename a app-id
I do not want to delete the app. I have user data. -Aswath On Sun, Jul 18, 2010 at 6:57 PM, jacek.ambroziak jacek.ambroz...@gmail.comwrote: Not really, but you can delete the app and after it is gone create a new one with the (available) name you want On Jul 18, 12:02 am, aswath satrasala aswath.satras...@gmail.com wrote: Hello, Is there any way I can rename my app-id. -Aswath -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: rename a app-id
Any java tools to do this? On Sun, Jul 18, 2010 at 6:49 PM, Robert Lancer robert.lan...@gmail.comwrote: No, you have to create a new one and transfer everything. On Jul 18, 12:02 am, aswath satrasala aswath.satras...@gmail.com wrote: Hello, Is there any way I can rename my app-id. -Aswath -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: rename a app-id
Yes you can transfer your data efficiently using the remote datastore: http://code.google.com/p/remote-datastore/ You basically read in bulk from one datastore then write in bulk to the other like this DatastoreService service = DatastoreServiceFactory.getDatastoreService(); RemoteDatastore.divert(http://aversion.latest.first-app-id.appsot.com/remote-datastore , first-app-id, aversion); QueryResultIteratable results = service.prepare(...); RemoteDatastore.bypass(); service.put(results); You need to use cursors to keep your place between reads and writes On 18 Jul 2010, at 20:34, aswath satrasala wrote: Any java tools to do this? On Sun, Jul 18, 2010 at 6:49 PM, Robert Lancer robert.lan...@gmail.com wrote: No, you have to create a new one and transfer everything. On Jul 18, 12:02 am, aswath satrasala aswath.satras...@gmail.com wrote: Hello, Is there any way I can rename my app-id. -Aswath -- 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-java@googlegroups.com . To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en . -- 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-java@googlegroups.com . To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en . -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] populate datastore with a new kind
On 18 Jul 2010, at 06:11, emmanuel harel wrote: Thanks John ! Is it possible to have a svn check out repository address ? Regards http://code.google.com/p/remote-datastore/ -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Geomodel in Java
Hi Stephen,
Thanks for your help. The problem has been solved by adding the
libraries into the class path.
On Jul 16, 7:33 pm, Stephen Johnson onepagewo...@gmail.com wrote:
Hi Mahsa,
You have these imports:
import com.beoui.geocell.GeocellManager;
import com.beoui.geocell.model.BoundingBox;
import com.beoui.geocell.model.CostFunction;
import com.beoui.geocell.model.GeocellQuery;
import com.beoui.geocell.model.Point;
So, one obvious question since you are getting NoClassDefFoundError:
com/beoui/geocell/model/Point is: Did you put the appropriate JAR file
in WEB-INF/lib or if these classes are not in a JAR, did you put them
in WEB-INF/classes directory?
Stephen Johnson
On Jul 13, 1:13 pm, Mahsa mahsa.ghafour...@gmail.com wrote:
Hello,
I am developing a simple GIS cloud application using Google App Engine
Geomodel. In this application, I would like to store latitude and
longitude of points from user, later on query them using boundingbox
proximity queries. I am experiencing problem while trying to access
the server through a browser. I appreciate it if someone help me with
this regard.
I am usingEclipse, and here is what I did:
1) Created a Web application project enabling only Google App Engine
(1.3.4)(as Google SDK)
2) Created a simple jsp file in war folder to get latitude
longitude from user
3) Created two java classes, UseGeocell and ObjectToSave. UseGeocell
class is similar to the code
inhttp://code.google.com/p/javageomodel/source/browse/trunk/geocell/src...
ObjectToSave is
exactlyhttp://code.google.com/p/javageomodel/source/browse/trunk/geocell/src...
4)In my Servlet I defined an object of type UseGeocell and called
testHowToSaveGeocellsInDatabase function in order to save latitude
longitude that are obtained from the input
Here is my code:
My UseGeocell class:
package edu.pitt.Test8_Geomodel_GAE;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jdo.PersistenceManager;
import junit.framework.Assert;
import junit.framework.TestCase;
import com.beoui.geocell.GeocellManager;
import com.beoui.geocell.model.BoundingBox;
import com.beoui.geocell.model.CostFunction;
import com.beoui.geocell.model.GeocellQuery;
import com.beoui.geocell.model.Point;
/**
* Unit test also used to explain how to use Geocell class.
*
* @author Alexandre Gellibert alexandre.gellib...@gmail.com
*
*/
public class UseGeocell extends TestCase {
private final Logger log = Logger.getLogger(com.beoui.utils);
public ObjectToSave obj;
/**
* First step is to save your entities.
* In database, you don't save only latitude and longitude of
your point but also geocells around this point.
*/
public void testHowToSaveGeocellsInDatabase(double lat, double
lon) {
// Incoming data: latitude and longitude (Bordeaux for
instance)
//double lat = 44.838611;
//double lon = -0.578333;
// Transform it to a point
Point p = new Point(lat, lon);
// Generates the list of GeoCells
ListString cells = GeocellManager.generateGeoCell(p);
// Save your instance
obj = new ObjectToSave();
obj.setLatitude(lat);
obj.setLongitude(lon);
obj.setGeocells(cells);
//objDao.save(obj);
// Just checking that cells are not empty
Assert.assertTrue(cells.size() 0);
// Show in the log what cells are going to be saved
log.log(Level.INFO, Geocells to be saved for Point(+lat
+,+lon+) are: +cells);
}
/**
* Second step, now entities are in database, we can query on
them.
* Here is the example of a bounding box query.
*
*/
public void testHowToQueryOnABoundingBox(double latSW, double
lonSW, double latNE, double lonNE) {
// Incoming data: latitude and longitude of south-west and
north-east points (around Bordeaux for instance =) )
//double latSW = 44.8;
//double lonSW = -0.6;
// double latNE = 44.9;
// double lonNE = -0.7;
// Transform this to a bounding box
BoundingBox bb = new BoundingBox(latNE, lonNE, latSW,
lonSW);
// Calculate the geocells list to be used in the queries
(optimize list of cells that complete the given
Re: [appengine-java] Re: PDF Files
it doesn't sound like you need to generate the PDF using a library if it's stored as a blob ... can't you just set the content type to be application/pdf and stream the blog contents? your servlet just needs the key or some mapping to look up the blob. otherwise, i wrote a summary of my experiences with PDF generation a while ago: http://conorjpower.com/2010/01/11/pdf-generation-in-java/ C On Sun, Jul 18, 2010 at 5:12 AM, Khor Yong Hao fyh...@gmail.com 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 dovm...@gmail.com wrote: Hi, Check this one http://www.pdfjet.com/java/index.html They claim to support Google App Engine =Dov On Jul 15, 7:57 am, Daniel vedm...@gmail.com wrote: But it says that on Will it play in App Engine That its incompatible: iText Version(s): ? Status: INCOMPATIBLE * iText relies on several classes not in the JRE class whitelist including java.awt.Color and java.nio.MappedByteBuffer. A bug has been filed athttp:// sourceforge.net/tracker/?func=detailatid=365255aid=2810312g On Jul 15, 7:51 am, Shyam Visamsetty shyamsunder...@gmail.com wrote: Chris, Did you want to generate a PDF File on the GAE? If yes, you can use the iText library for generating the pdfs on the app engine. You can have a servlet to download the PDF file you generated. Thanks, Shyam Visamsetty On Jul 14, 1:36 pm, chrischelmi michelvo...@gmail.com wrote: Helle every body, I am working on a Google App Engine Project that consists of uploading PDF files and displaying it after. I use a Blob to store the PDF file i want to do a process to download this PDF file by giving the a specifics name. Is there a way to generaye PDF files with GAE? i have a process to display the PDF but i want to download it direcly from an URL. -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] populate datastore with a new kind
Thank you for the address but my tortoise svn is telling me this is not the address of the trunk Do i have to use TortoiseHG to check out this project ? 2010/7/18 John Patterson jdpatter...@gmail.com On 18 Jul 2010, at 06:11, emmanuel harel wrote: Thanks John ! Is it possible to have a svn check out repository address ? Regards http://code.google.com/p/remote-datastore/ -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] populate datastore with a new kind
On 19 Jul 2010, at 01:23, emmanuel harel wrote: Thank you for the address but my tortoise svn is telling me this is not the address of the trunk Do i have to use TortoiseHG to check out this project ? Click on the link and all will be revealed -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Active transactions
Hi! I have a problem with active transaction.When I try to guard in
the datastore, says:
La transaccion esta activo todavia. Debe cerrar las transacciones
usando los metodos commit() o rollback().
As closure all the transactions?
The method is:
PersistenceManager pm2 = JDOHelper.getPersistenceManager(fechaAgreg);
Transaction tx = pm2.currentTransaction();
try {
tx.begin();
Partido par1 = null;
ControladorTorneo cT= new ControladorTorneo();
par1 = new Partido(null, new Resultado(),
cT.devolverEquipo( idTorneo,idEqLocal),
cT.devolverEquipo(idTorneo,idEqVisitante), fecha, hora);
fechaAgreg.agregarPartido(par1);
pm2.makePersistent(fechaAgreg);
tx.commit();
} finally {
pm2.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
Regards
--
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[appengine-java] task queues and retries
One of my tasks encountered a failure and wasn't retried. I think it's because the servlet returned a 200 response, but I don't know why it did since the exception bubbled all the way up to the base servlet. Do we need to explicitly return a 5xx error code in exception cases for retries to work? 07-18 02:46PM 06.907 /cleanerq 200 29515ms 9156cpu_ms 5404api_cpu_ms 0kb AppEngine-Google; (+http://code.google.com/appengine) 0.1.0.2 - - [18/Jul/2010:14:46:36 -0700] POST /cleanerq HTTP/1.1 200 0 http://11.latest.wordwisegame.appspot.com/starttasks; AppEngine- Google; (+http://code.google.com/appengine) 11.latest.wordwisegame.appspot.com ms=29516 cpu_ms=9157 api_cpu_ms=5404 cpm_usd=0.254392 queue_name=cleaner-queue task_name=5681724147391472665 exit_code=104 ... com.honkentuber.Servlet doIt: Transaction failed to commit javax.jdo.JDODataStoreException: Transaction failed to commit at org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java: 304) at org.datanucleus.jdo.JDOTransaction.rollback(JDOTransaction.java: 153) at org.datanucleus.store.appengine.jdo.DatastoreJDOTransaction.rollback(DatastoreJDOTransaction.java: 71) at com.honkentuber.Database.rollbackIfNecessary(Database.java:393) at com.honkentuber.wordwise.db.WordwiseDatabase.fixUserCreateDateAndGameCountsTxn(WordwiseDatabase.java: 808) at com.honkentuber.wordwise.db.WordwiseDatabase.fixNextUsers(WordwiseDatabase.java: 654) at com.honkentuber.wordwise.servlet.CleanerQueueServlet.newHtmlResponse(CleanerQueueServlet.java: 168) at com.honkentuber.wordwise.servlet.WordwiseBaseServlet.newHtmlResponse(WordwiseBaseServlet.java: 63) at com.honkentuber.Servlet.dispatchHtml(Servlet.java:105) at com.honkentuber.Servlet.doIt(Servlet.java:49) at com.honkentuber.Servlet.doPost(Servlet.java:33) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 511) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1166) at com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java: 92) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: 97) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: 35) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: 43) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: 238) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 542) at org.mortbay.jetty.HttpConnection $RequestHandler.headerComplete(HttpConnection.java:923) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: 76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: 135) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: 250) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:7115) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:7113) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: 24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: 398) at com.google.net.rpc.impl.Server$2.run(Server.java:852) at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java: 56) at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java: 576) at
[appengine-java] how to add entity using map-reduce?
Hello, everybody! I have simple one to many relationship Parent- Child. I want each parent entity to have one predefined Child entity. To do it I iterate through all Parent entities (using map-reduce framework) and add one Child entity. There problem is- to maintain one to many relationship I have to set up child_INTEGER_IDX field of Child entity. I guess it should be number of children which already belong to this Parent entity. The question is how can I get that number? In map- reduce framework I know about Parent entity only. Any ideas how to solve this problem? Thank you, Andrey -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] C++ in GAE
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 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] app works in IE but not in Firefox and safari!
IE version:3.0.28 Firefox version:3.6.6 Safari(Mac) version:5.0 Eclipse Java EE IDE for Web Developers.:Hellios Java version:1.6.0_21 http://easyalarm97531.appspot.com/ works well in IE but not in Firefox and safari. In Firefox and Safari shows like html head ... Answers are appreciated. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: How to get the BlobKey from a file which was uploaded
Hi! Do you speak spanish? I have an idea but I don't know english very well... I'll try to explain myself but I do not promise anythig lol... 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. Then I create a new BlobKey by the keyString that I was saved and I show it... - Jairo On 15 jul, 09:19, Alexander Orlov alexander.or...@loxal.net wrote: Anyone? I mean how could you assign certain blobs to certain users if this isn't possible? -Alex On Jul 7, 12:51 pm, Alexander Orlov alexander.or...@loxal.net wrote: I want to get the BlobKey from a file a user has uploaded to link the BlobKey to other information. First I retrieve a post URL to upload the blob: val blobstoreService = BlobstoreServiceFactory.getBlobstoreService return blobstoreService.createUploadUrl(/) Than I do a simple doPost() to post the file to the retrieved post URL. But doPost is a void method and don't provide any return value. Is there a method which provides a return value (the BlobKey) for the file that was uploaded? -Alex- Ocultar texto de la cita - - Mostrar texto de la cita - -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] JDO creates entities when I don't ask it to
I am having a problem that is confusing me. I have two entities, A and B. Both have user-assigned numeric ids and A refers to an instance of B. So I have a process like this: B b = new B(); b.setId(1); // save b A a = new A(); a.setId(1); B b2 = DAL.getBById(1); a.setB(b2); // save a DAL.getBById is a method that returns an instance of B by the id given to it. However, when I do this, a second instance of B is created. So I should have an instance of A and an instance of B that is referred to by A. But what I have is an instance of A and two instances of B. Is this a common mistake? I am new to GAE/J and JDO. Thanks! -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Dance Dance Robot error / Channel API
I believe you are using script src='/_ah/channel/jsapi'/script,
which gives $wnd.goog is undefined.
Try script src='http://talkgadget.google.com/talkgadget/channel.js'/
script.
On Jul 16, 9:11 am, Daniel Guermeur superco...@gmail.com wrote:
Hello there,
I am building a GWT+ GAE app based on Dance Dance Robot app, the demo
Google IO demo app showcased at Google IO.
I am using the Channel API (Java AppEngine 1.3.5) . I am almost there
but there is one hick up on the GWT client side (Java):
When running the app I get an error:
==
- Uncaught exception escaped.
com.google.core.client.JavaScriptException: (TypeError): $wnd.goog is
undefined.
==
This comes from the ChannelFactory.java on the client side. Here it
is:
public class ChannelFactory {
public static final native Channel createChannel(String
channelId) /*-{
return new $wnd.goog.appengine.Channel(channelId);
}-*/;
}
Again this is straight from the Dance Dance Robot demo app.
I am pretty sure it is a stupid mistake on my part but can't find it.
Any suggestion would be greatly appreciated.
Daniel
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[appengine-java] app works in IE but not in Firefox and safari!
app: http://easyalarm97531.appspot.com works fine in IE but not in Firefox and Safari. IE version:6.0.28 Firefox version:3.6.6 Safari(Mac) version:5.0 Eclipse version:Helios java version:1.6.0_21 -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] An exception thrown while using JavaMail with Google AppEngine
Hi All, I am trying to write a Java program using JavaMail to send an email between 2 users. I have NOT added mail.jar and activation.jar files to my appengine project as I read somewhere that this would cause exceptions to be thrown since the functionality is already available with the appengine .jar files. But my program is throwing the following exception:- Exception in thread main com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'mail' or call 'Send()' was not found. at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:95) at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:48) at com.google.appengine.api.mail.MailServiceImpl.doSend(MailServiceImpl.java:95) at com.google.appengine.api.mail.MailServiceImpl.send(MailServiceImpl.java:32) at com.google.appengine.api.mail.stdimpl.GMTransport.sendMessage(GMTransport.java:247) at javax.mail.Transport.send(Transport.java:95) at javax.mail.Transport.send(Transport.java:48) at weatherForecast.SendEmail.main(SendEmail.java:40) I read in the following post: http://forums.smartclient.com/showthread.php?t=8589 that I need to remove appengine .jar files from my project to make things work. But my web application also involves rendering a .jsp file populated with some data which is the welcoming page of my Google App when deployed on google appengine and the project fails to work once I remove the .jars. It does help me in getting rid of the exception though. Can anyone please suggest a way to write an email program and make it work on a google appengine project? Thanks! Harini -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] JCache
Is possible to save object instances using JCache? I have tried and received the following message: javax.servlet.ServletException: java.lang.IllegalArgumentException: can't accept class CLASSNAME as a memcache entity Thanks -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] JDO - How to Model a Transferable Relationship?
Hi, I'm having trouble getting JDO work in a situation of wanting to transfer child objects from one parent to another. Let's say that I would like to model an object called Team and an object called Player. A Player can be on only one team at a time, and a Team can have many Players. I can get the basics working, however I run into problems when I want to transfer (trade) an existing Player instance to an existing Team instance. Outside of that relationship, the objects are completely different. I have the problem that a child cannot be moved because apparently it isn't in the same entity group. I have tried to model it as SetKey in each class like the Favorite Foods example in the documentation, but that doesn't work. I don't get errors, but nothing is saved. The Sets saved are always empty. I have tried the same thing with ArrayListLong, where Long is the Key.getId() of the related object. I think I am missing something rather simple, but I can't get it working. Do I need other annotations? Can someone post a simple example? thanks! Max -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Entity relationship table
Im relatively new too GAE and the Datastore, and i had a question on the best way to setup some entities. I have created a entity called 'Person' and this person has a list of friends in the system that are also of type 'Person'. In SQL i would have created a simple linker/relationship table with 2 fields (person_id, friend_id), both referring to the same id from the 'Person' table. I was wondering what the best practice for doing this with GAE and bigtable. demetri -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Question about accessing child objects when sharding
I am just learning JDO and GAE, and have gotten myself very stuck on
this.
I have gone from having just
public class Article {
...
}
To now also having a parent:
public class ArticleCollection {
private long count
private SetArticle articles;
}
However after doing this, the following code to fetch an article by id
no longer works. How do I uniquely identify an object?
Article article =
(Article)pm.getObjectById(KeyFactory.createKey(Article.class.getName(),
id));
Any help much appreciated!
--
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[appengine-java] App Engine integration with Google Apps Marketplace
Hi, I'm trying to enable SSO for my App Engine app in order to put it on the Google Marketplace. Let's say that I have my GAE app running at www.example.com. When I publish it to the Google Marketplace, a Google Apps user (say us...@domain1.com) will be able to click on a link in the Google menu pointing to my site - something like this: http://www.example.com/home?from=googledomain=domain1.com Now, acording to this docu (http://code.google.com/appengine/docs/java/ users/overview.html) I should use the Users API to authenticate the user. I assume I have to use userService.createLoginURL method somehow and use the domain domain1.com (which is passed as a parameter to my / home servlet). I have tried something like this: SetString attributesRequest = new HashSetString(); attributesRequest.add(openid.mode=checkid_immediate); attributesRequest.add(openid.ns=http://specs.openid.net/auth/2.0;); attributesRequest.add(openid.return_to= + thisUrl); userService.createLoginURL(thisUrl, domain1.com, https:// www.google.com/accounts/o8/id, attributesRequest); The probem is that the login URL which I get works for google accounts only (like gmail accounts) - I do not get any Google Apps page where a user like us...@domain1.com could login :( Does anybody know how I can get this working ? Or am I on the wrong track ? Many thanks for the help !! Daniel -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Dance Dance Robot error / Channel API
I did not get your error on running below code.
public static final native Channel createChannel(String channelId) /*-
{
return new $wnd.goog.appengine.Channel(channelId);
}-*/;
I have successfully create a channelId string on server side. The
format looks like channel--9iwvs5-testing.
Then I use the channelId string in below code on the client side.
Channel channel = ChannelFactory.createChannel(channelId);
Unluckily below message is shown in the browser.
Invalid token.Error 401
Anyone has solve this token issue?
On Jul 16, 9:11 am, Daniel Guermeur superco...@gmail.com wrote:
Hello there,
I am building a GWT+ GAE app based on Dance Dance Robot app, the demo
Google IO demo app showcased at Google IO.
I am using the Channel API (Java AppEngine 1.3.5) . I am almost there
but there is one hick up on the GWT client side (Java):
When running the app I get an error:
==
- Uncaught exception escaped.
com.google.core.client.JavaScriptException: (TypeError): $wnd.goog is
undefined.
==
This comes from the ChannelFactory.java on the client side. Here it
is:
public class ChannelFactory {
public static final native Channel createChannel(String
channelId) /*-{
return new $wnd.goog.appengine.Channel(channelId);
}-*/;
}
Again this is straight from the Dance Dance Robot demo app.
I am pretty sure it is a stupid mistake on my part but can't find it.
Any suggestion would be greatly appreciated.
Daniel
--
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[appengine-java] About Google App Engine Google API
Hi all, I'm a student in senior year. Now, I'm researching G.A.E and I try to make an application server community. Would you like to give me advice or suggestion for my project. Hope you understand. I would appreciate your giving me the opportunity to discuss about G.A.E. Thank you so much! -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Pushlets HTTP-based publish/subscribe framework?
http://www.pushlets.com/ HTTP-based publish/subscribe framework Can I use it? -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Question about accessing child objects when sharding
I am just learning JDO and GAE, and have gotten myself very stuck on
this.
I have gone from having just
public class Article {
...
}
To now also having:
public class ArticleCollection {
return
(Article)pm.getObjectById(KeyFactory.createKey(Article.class.getName(),
id));
--
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Re: [appengine-java] app works in IE but not in Firefox and safari!
Can you post code? My guess is you aren't setting content type to text/html. On Fri, Jul 16, 2010 at 1:01 AM, karasu kuro g975318...@gmail.com wrote: IE version:3.0.28 Firefox version:3.6.6 Safari(Mac) version:5.0 Eclipse Java EE IDE for Web Developers.:Hellios Java version:1.6.0_21 http://easyalarm97531.appspot.com/ works well in IE but not in Firefox and safari. In Firefox and Safari shows like html head ... Answers are appreciated. -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog: http://googleappengine.blogspot.com Twitter: http://twitter.com/app_engine Reddit: http://www.reddit.com/r/appengine -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Entity relationship table
The best practice is probably to create list properties with Keys representing friend IDs. This is a good video to watch: http://www.youtube.com/watch?v=AgaL6NGpkB8 On Fri, Jul 16, 2010 at 8:03 AM, dmetri333 dmetri...@gmail.com wrote: Im relatively new too GAE and the Datastore, and i had a question on the best way to setup some entities. I have created a entity called 'Person' and this person has a list of friends in the system that are also of type 'Person'. In SQL i would have created a simple linker/relationship table with 2 fields (person_id, friend_id), both referring to the same id from the 'Person' table. I was wondering what the best practice for doing this with GAE and bigtable. demetri -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog: http://googleappengine.blogspot.com Twitter: http://twitter.com/app_engine Reddit: http://www.reddit.com/r/appengine -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Pushlets HTTP-based publish/subscribe framework?
Sorry, you can't, Appengine had set 30 seconds request time limit, it is impossible to use such kind of server push technology. On Sat, Jul 17, 2010 at 6:43 AM, Phạm Hưng hungsi...@gmail.com wrote: http://www.pushlets.com/ HTTP-based publish/subscribe framework Can I use it? -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] About Google App Engine Google API
Is you meant that you want to create another SNS that consisted of all members of google appengine java group? On Sat, Jul 17, 2010 at 6:27 PM, Tan Duy tanduy2...@gmail.com wrote: Hi all, I'm a student in senior year. Now, I'm researching G.A.E and I try to make an application server community. Would you like to give me advice or suggestion for my project. Hope you understand. I would appreciate your giving me the opportunity to discuss about G.A.E. Thank you so much! -- 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 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
