[appengine-java] Re: Unit testing 2nd class citizen?
On Nov 21, 1:18 am, John Towell john.tow...@gmail.com wrote: I just had to do this http://groups.google.com/group/google-appengine-java/browse_thread/th... This is a bit shady to still not have been fixed. I don't see the problem here. It's the same thing with JUnit, Hamcrest and all the other test dependencies. You can use the same solution you use there like for example test scoped Maven dependencies. Cheers Philippe -- 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=.
[appengine-java] Re: XML to Object libraries and Vice Versa
Hi Few days back i asked a question that which libraries can be used to Convert Object to Xml and vice versa, and got advice to use betwixt (http://commons.apache.org/betwixt/).. I tried it and its working locally but on GAE server its not working and throwing following exception org.apache.commons.betwixt.XMLIntrospector introspect: Security manager does not allow bean info search path to be set then i suppose we can not use Betwixt on GAE. If we can then can anyone tell what i can do to make it work. If not then can you suggest any othe rlibarary which can be used. Thanks, Ravi. On Nov 8, 5:50 pm, LUAI KASSAR luai.kas...@gmail.com wrote: Use Apache betwixt ,its works on GAEhttp://commons.apache.org/betwixt/ On Sun, Nov 8, 2009 at 7:46 PM, Ravi Sharma ping2r...@gmail.com wrote: I am not sure if i understand you. Can you explain bit more, an example or link would be great. I can do normal Sax parsing but then writing code for each different kind of xml is gonna be very tidious work.So looking for some GAE supported libararies like JAXB or XMLBEAN My Requirment is as follows(in cae is there was any misunderstanding) xml order clientinfo name/name address/address /clientinfo items item namePersonName/neam quantity2/quantity price/price /item /items vendor nameMy Venod ltd/name addressABC 234/address /vendor /order and now in java if i want to get the vbendor name tehn i should be able to access it using classes directly(which will be generated compile time) Order order = SomeMarsheller.unmashel(fullxml); String vendorName = order.getVendor().getName(); My Orginal Mail was Hi, Is there any library like Apache XMLBeans/JAXB supported in Google APP Engine which can be used for converting XML to Java Object and Java Objects to XML. I checked the White lists of libraries and found that JAXB is not supported ( I have already stared the issue related to it) and Xmlbeans was not mentioned as Supported Library. I am sure lots of people here doing this normal thing to convert Java Object to XML and Vice Versa. Please Suggest some thing Ravi. On Fri, Nov 6, 2009 at 3:59 PM, rakeshv rak...@rakeshv.org wrote: I am sure lots of people here doing this normal thing to convert Java Object to XML and Vice Versa. Please Suggest some thing. The XML element/attribute pair maps quite well into the low level API Entity/properties structure. That should be all you need. Rakesh- Hide quoted text - - Show quoted text - -- 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=.
[appengine-java] Make application available for Google Apps customers
This is less technical question and I am not sure if it can be answered. I have a Google App Engine application I would like to be used by Google Apps domains (and publish to Google Enterprise Marketplace to make it available for any Google Apps customers). However when testing I found that if I use Google Apps authentication this application is available to just one Google Apps domain and cannot be used by another. If I allow use by any Google account Google Apps customers can add this application but they are unable to sign in using their Google Apps domain account. How is this done? There are plenty of applications available (Moderator for instance) which you can hook up to any domain. Thanks, Peter -- 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=.
Re: [appengine-java] Re: updating object doesn't work anymore
I am not using OpenPersistenceManagerInViewFilter, but I am using Spring to create the PersistenceManager at the beginning of the a request. If am changing many objects, and I seem to have problems where they don't get stored to the datastore. I can check right before I close the PersistenceManager that they objects are dirty, but they don't seem to update the datastore. I have found a hacky workaround, that if I open and close the PersistenceManager pretty close to where I make the change, it seems to store correctly. But this has caused other bugs where I have handles to objects that are part of a closed PersistenceManager. I am not sure this helps you, but I wanted to let you know that other people are having similar problems. --Jeff On Thu, Nov 19, 2009 at 11:48 PM, datanucleus andy_jeffer...@yahoo.comwrote: Any thoughts Look at the log perhaps? since it will tell you exactly what happens (at DEBUG level), and since you present no persistence code I'm not sure what other replies you're likely to get -- 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=. -- 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=.
Re: [appengine-java] Re: A web service with security (java)
There's also Spring Security (aka Acegi). Andrey wrote: Now I can (partly) answer the question by myself :) 1) In the simplest situation it's easy to develop a stateless web service (the userName and userPassword can be passed straight into the request url). 2) To simplify the transformation of object to XML it's better to use languages like Groovy. Which groovy package can be used under the GAE is the question :). It's interesting, does everything from here https://www.ibm.com/developerworks/java/library/j-grails09168/ can be applied under GAE... Gaelyk http://gaelyk.appspot.com/ can simplify the life :). 3) Articles about usage of SOAP Service under GAE: http://blog.cloudwhiz.com/2009/09/exposing-soap-service-on-gae-part-1.html (and other parts as well...) 4) Restlet is also interesting http://wiki.restlet.org/docs_2.0/13-restlet/275-restlet/252-restlet.html -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=. -- 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=.
[appengine-java] Re: java.lang.NoClassDefFoundError: com/google/appengine/api/xmpp/JID
My answers to your questions are in my post from 28. oct. I continued debugging my XMPP test app today. At first, the same error occurred. I tried Class.forName(com.google.appengine.api.xmpp.JID). That worked. And now sending XMPP also worked! To find out, what caused the problems, I added the saxon9.jar (provides services for javax.xml.xpath.XPathFactory and javax.xml.transform.TramsformerFactory). Now I got a ClassNotFoundException again! And I still get this exception even though I removed the saxon9.jar (and deployed a new version of the app and removed all other old versions). So what I did: APP1 (uses saxon9.jar): added XMPP test - ClassNotFoundException JID APP2 (created from scratch, empty lib, no saxon9.jar): XMPP test - works! APP2: small changes (just logging) - ClassNotFoundException JID APP2: a lot of testing, creating new versions, deleting old versions, ... - ClassNotFoundException JID APP1: XMPP test removed APP2: Class.forName(com.google.appengine.api.xmpp.JID) and some other testing - works! APP2: adding saxon9.jar - ClassNotFoundException JID APP2: removing saxon9.jar - ClassNotFoundException JID APP2: creating new versions, deleting old versions, ... - ClassNotFoundException JID - Claus On 27 Okt., 22:24, Jason (Google) apija...@google.com wrote: Are you still seeing this error? If so, which version of the SDK are you using? Did you change your SDK settings or update your SDK between the time when XMPP was working and when it started failing? Also, can you list the JARs in your war/WEB-INF/lib directory? - Jason On Sat, Oct 24, 2009 at 12:56 PM, lallafa claus.cla...@gmail.com wrote: I wrote a test servlet SendServlet that sends invitations and messages. Calling the servlet works fine with with the runtime. It also worked when it was uploaded to app engine the first time. But after uploading new versions the following exception is thrown: java.lang.NoClassDefFoundError: com/google/appengine/api/xmpp/JID at plapperbot.SendServlet.doPost(SendServlet.java:29) 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: 487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter (ServletHandler.java:1093) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter (SaveSessionFilter.java:35) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter (ServletHandler.java:1084) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter (TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter (ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle (ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle (SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle (SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle (ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 405) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle (AppVersionHandlerMap.java:238) at org.mortbay.jetty.handler.HandlerWrapper.handle (HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete (HttpConnection.java:830) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable (RpcRequestParser.java:76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest (JettyServletEngineAdapter.java:139) at com.google.apphosting.runtime.JavaRuntime.handleRequest (JavaRuntime.java:239) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5135) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5133) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest (BlockingApplicationHandler.java:24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: 363) at com.google.net.rpc.impl.Server$2.run(Server.java:814) at com.google.tracing.LocalTraceSpanRunnable.run (LocalTraceSpanRunnable.java:56) at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan (LocalTraceSpanBuilder.java:516) at com.google.net.rpc.impl.Server.startRpc(Server.java:769) at com.google.net.rpc.impl.Server.processRequest(Server.java:351) at
[appengine-java] Re: convert JDO query to JPA
Can you post the JPA version of your entity?
@Entity
public class Friend {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key key;
private String lastName;
public int crud;
private String firstName;
@Basic
private CollectionKey friends;
I've just built something similar, and if I pass a Key to:
query.setParameter(key, key);
This works correctly, though if I pass the String key to it
query.setParameter(key, someLongString);
what was ur query? was the query to filter on a collection?
i have set the parameters against primitive members successfully but
not against collection members.
It returns an empty list. Could this be what is happening?
no.i just retested my code to make sure i hadnt messed up. i am
definitely using a Key not a string.
//JPA
javax.persistence.Query query = em.createQuery(select from Friend f
where f.friends=:key);
query.setParameter(key, user2.getKey());
return list of 0
using the *same* JPA entity code the JDO works fine
//JDO
javax.jdo.Query query = pm.newQuery(Friend.class);
Key myKey = user2.getKey();
query.declareParameters(com.google.appengine.api.datastore.Key
myKey);
query.setFilter(friends == myKey);
query.setOrdering(lastName ASC, firstName ASC);
ListFriend friendList = (ListFriend) query.execute(myKey);
return correct list
Q1 can u post your JPA code so i can see what u have done differently?
Q2. is mixing JPA and JDO ok? ie. JPA entity and JDO seems to work for
me.
Q3.how does the collection equality filter work in app engine? I have
not found any docs to explain the 'voodoo' like behaviour.
from what i can determine the collection filter is executed on the
data store and not in the application as the unfiltered list executed
the 1000 row limit.
it works but i dont understand how.
any help most appreciated
-lp
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[appengine-java] Re: Cannot retrieve value of the newly created attribute in a JDO
I have some problems with making some ArrayList attributes persistent,i wonder whether these two problem have some similarities. Would you tell me how u fixed it or can u help me to fix my own? please. On Nov 7, 4:59 pm, delightwjk delight@gmail.com wrote: I have fixed this problem. Thanks. On Nov 6, 11:05 am, delightwjk delight@gmail.com wrote: Thank you Jorge, I checked the document you mentioned, but i'm still not sure what is the reason of my issue. I added a field inJDO(Boolean successFlag), and stored several entities in datastore, I was able to see the entities with successFlag property from admin console Datastore - Data Viewer, and the values of successFlag properties were correct. The entities have the property successFlag with correct value, and the JDOclass has the corresponding field, but why I could not retrieve the values of successFlag viaJDO? Jiakuan On Nov 5, 9:57 pm, Jorge athenas...@gmail.com wrote: You may want to check the rules that apply in this case as documented at the bottom of this page:: http://code.google.com/appengine/docs/java/datastore/dataclasses.html Jorge Gonzalez On Nov 4, 8:06 am, delightwjk delight@gmail.com wrote: Hi All, I created aJDOclass, which had some attributes, and I created some CRUD operations, all of them worked correctly. Then I added a new attribute in theJDOclass, and then set value to it and persisted it as usual when I executed CRUD operations. The problem is that I cannot retrieve the value of the new attribute in program, the value is always null. But when I check the value in Datastore - Data Viewer, the value is correct. So i'm wondering why it cannot be retrieved in application. Is there some cache mechanism? Thanks in advance! Jiakuan -- 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=.
[appengine-java] Re: Cannot get guestbook.jsp of Guestbook app to work
I also have the same problem and i do have the jdk1.6 installed. If i copy the guestbook.jsp code inside the predefined index.html file in the eclipse the guestbook.jsp code it shows me the html code in the browser but the java functions does not work! If I do a new file named guestbook.jsp nothing works. Any other ideas please? Thank you, Andreas On Nov 15, 5:06 am, zhiw...@gmail.com zhiw...@gmail.com wrote: 1. make sure use jdk1.5 or 1.6 2. uninstall your jre , only let jdk in your computer. On Nov 15, 8:10 am, Martin martin.j.lebor...@gmail.com wrote: Hello - I'm trying to work through the Guestbook tutorial of Google App Engine tutorial. (Using Eclipse), but getting stuck at the section where I develop jsps (and then develop a guestbook.jsp) I'm able to get the project working - I can manipulate the GuestbookServlet class file to display a welcome message. However, when I attempt to incorporate the guestbook.jsp, I still only see the old display message that I wrote in GuestbookServlet. (I've recompiled, restarted Eclipse, and even restarted computer). 1) Web xml looks like: welcome-file-list welcome-fileguestbook.jsp/welcome-file /welcome-file-list 2) guestbook.jsp is pasted directly from tutorial. 3) Going to http://localhost:8080/guestbook; yields the message I coded in the GuestbookServlet 4) Going directly to:http://localhost:8080/guestbook.jspyieldsan error: Error running javac.exe compiler RequestURI=/guestbook.jsp Caused by: Error running javac.exe compiler at org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExter nalCompile (DefaultCompilerAdapter.java:473) at org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute (JavacExternal.java:47) at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:931) at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:757) at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java: 382) 5) I even trimmed out all jsp code from guestbook.jsp and i get same results - get servlet message from going to /guestbook and get above error from going directly to guestbook.jsp. (And yeap, I recompiled and restarted) . Any thoguhts? Thank you very much for your help. I greatly appreciate it. Martin -- 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=.
[appengine-java] JDO x JPA
Hi there, What's the better suport for GAE, JDO or JPA? I see many examples in JDO so I think that it have the better support. -- Rafael Reuber MSN/Gtalk: psico.in...@gmail.com -- 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=.
[appengine-java] Re: Datastore Issues
The Datastore problems makes me crazy too... On Nov 22, 3:46 pm, Jeffrey Goetsch jeffg@gmail.com wrote: I have been having a lot of trouble with JDO objects not storing, or at least not storing some of the data. This has been extremely frustrating, and have thought about giving up on Appengine a few times, because my current design seems bring out all the bugs in the Datastore/Datanucleus code. Are other people also having major issues? Currently, my design starts a Data session at the beginning of the request, and then closes at the end of the request. I figured this should save all the changes that I have made to the Datastore. What I am finding is that some of the objects are being stored and other objects are not. I have managed to get most of the code working by open and closing PersistenceManager multiple times during the processing of a request. This feels very hacky, and introduces other bugs where I have a handle to an object opened in one of the early PersistenceManager, but not in the currently opened one. The project has lots of business logic unit test, which makes sure that all the objects get updated correctly per request. So, when I discover bad data in the datastore, I know it is a problem with the storing of the objects. I have made multiple attempts at simplifying the issue to post to this list, but as the code gets simpler the issues seem to go away. I am willing to share my larger code base with developers that are working on trying to fix these problems, but I don't want make a general post to everyone. Thanks, Jeffrey Goetsch -- 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=.
[appengine-java] Batched gets via pm.getObjectsById
Is there any particular reason that persistenceManager.getObjectsById isn't optimized to perform batch gets like the low-level API does? Seems like it would make sense and it would also make my current optimization problem easier. Context The getObjectsById function hasn't been optimized to perform a batch get, so you're just as well-off issuing multiple calls to getObjectById. If you need to issue a batch get, you'll need to use the low-level API. (http://groups.google.com/group/google-appengine-java/browse_thread/ thread/53f9acc11b6d1a84/4af4368394521b2f? lnk=gstq=newObjectIdInstance#4af4368394521b2f) -- 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=.
[appengine-java] Re: convert JDO query to JPA
Q2. is mixing JPA and JDO ok? ie. JPA entity and JDO seems to work for me. As per the DataNucleus docs you can define persistence with JPA metadata and persist using JDO, or define persistence using JDO metadata and persist using JPA. You definitely won't find that flexibility in any other JPA/JDO implementation. Q3.how does the collection equality filter work in app engine? I have not found any docs to explain the 'voodoo' like behaviour. I assume their interpretation of field == collectionValue is the same as collectionValue.contains(field) i.e non-standard JDOQL. When they support valid JDOQL syntax (the latter expression, in their next release IIRC) you would be strongly recommended to change to use that rather than this weirdness -- 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=.
[google-appengine] Re: Best practice for environment architecture design (development, test, verification, production)
I would like to thank you for the good and fast answers! We will go the “obvious” way and create a different application for each purpose in the development and operation process. But we will also take a look at the version-functionality. Many thanks On Nov 20, 8:09 pm, Ikai L (Google) ika...@google.com wrote: By the way - regarding the question about multiple versions of the same app: we have a restriction against this if it is used for the sake of dodging quota. This isn't the case here. Many of our customers run multiple versions to stage and test their application. On Fri, Nov 20, 2009 at 11:04 AM, Mikhail Kashkin mkash...@gmail.comwrote: Hi, read inline comments On Nov 20, 11:54 am, Anders Moberg anders.moberg.fri...@gmail.com wrote: Hi, I have searched for some kind of best practice for environment architecture design in GAE but haven't found anything (yet). I think we need 4 environments, development, test, verification and production. But that is just my initial thought. So my questions are: - What environments do you recommend? I use Eclipse with PyDev and Google App Engine Launcher (under Mac OSX). Mercurial as version control system. - What is easiest way to set up these environments? You can find a lot of tutorials how to setup such environment - Has google any official/unofficial policy against multiple versions for the “same” application? Never hear about such restrictions. As I know this is normal way. Only problem now that there is no support to update all instsnces same time, but it in roadmap. Our idea is to use a local computer for development. And 3 GAE hosted environments, where: Use SDK, seems like it is expected use case. - test would be for unit and integration test - verification for end-user-tests You can use unit test and UI test (I prefer Selenium based). - production of course for the final version. Just deploy and have fun I'm very interested in your thoughts and experience in this area! Regards, Anders Moberg -- Mikhail Kashkin http://www.devcult.ru/ http://www.mediavirus.ru/ http://app-engine.tumblr.com/(Russian App Engine Blog) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2Bunsubscrib e...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: How to design data model
On Nov 16, 6:11 am, fhucho fhu...@gmail.com wrote: Unfortunately, I'm not using Python... is there a way to make this work in Java? Absolutely. Even more (and harder) ways in Java. Most of the project (CRUD) create update delete a.k.a view add delete edit is available via montao.googlecode.com welcome view live montao.com.br migr8ing to gae web.montao.com.br and Indian version Fridge.Koolbusiness.com On Nov 16, 5:38 am, niklasr nikla...@gmail.com wrote: On Nov 15, 5:48 pm, fhucho fhu...@gmail.com wrote: Hi, I am developing a web app, where users should be able to (in this order): 1) create their item type (item type can be everything - car, book, movie..., item type has some user defined parameters, like price, rating) 2) add items of their type - e.g. they can create book type (with title, author, rating parameters) and then add books 3) view, filter (at least by one parameter), delete, edit their items How should I design the data model? Is this even posible in App Engine? Thanks in advance django has impressive builtin editor for our models with djangoforms.ModelForm seen onhttp://code.google.com/appengine/articles/djangoforms.html Theoretically the create CRUD and/or factory patternhttp://en.wikipedia.org/wiki/Factory_method_pattern I recommend and use for likewise. The categoryproperty.dbhttp://code.google.com/appengine/docs/python/datastore/typesandproper... seems obvious choice which needs documention how it differs from a word. app I maintain has similar function, create item, add item, edit, view, filter by longitude latitude and/or category (www.koolbusiness.com/ai) sourced montao.googlecode.com Sincerely Nick RTZ -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] income / billing (adsense gae combined)
Feature request or do tell if you know implemented function that calulcates my ROI i/o between adsense output and e.g. gae billing for time 0. I can compute it manually registering my adsense income relative gae billing for history and sure it's technically feasible and appropriate for typical. Thank you -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Re: Can't get owned relationship working with JDO and subclass
I discovered I cannot query (filter on) a superclass field. I described this
problem as a comment on App Engine Issue 25 -
http://code.google.com/p/datanucleus-appengine/issues/detail?id=25#c24
Anyone that knows what is going on, please reply.
Thanks very much for any help,
Rick
On Fri, Nov 20, 2009 at 10:33 AM, Rick Horowitz rickh...@gmail.com wrote:
Well it partly worked, but enough to get by for development purposes
for awhile, so that's pretty good. I removed datanucleus-
appengine-1.0.3.jar from the Eclipse plugin and replaced it with
appengine-1.0.4.RC1.jar. First, I tried my data model unchanged and it
did not work. I got the same error message:
Caused by: java.lang.IllegalArgumentException: can't operate on
multiple entity groups in a single transaction. found both Element {
type: Customer
id: 1
}
and Element {
type: Address
id: 2
}
So, then I moved the reference to Address from the base class,
Person to the subclass, Customer, and I was able to persist a
Customer. I'm assuming that any owned relationships will only work if
they emanate from the concrete class that you are trying to persist;
not a superclass. But I haven't tried this with, for example, a 3
level inheritance hierarchy, so I can't vouch for that. If I have to
use this type of inheritance in my app, I will post another message to
let people know how it turned out.
In the mean time, I'm hoping that we'll see an update to fix this
owned relationship by a superclass problem soon.
Rick
On Nov 20, 7:36 am, Rick Horowitz rickh...@gmail.com wrote:
I just examined the jars in some detail and see that there is only 1
jar changed: datanucleus-appengine-1.0.3.jar - datanucleus-
appengine-1.0.4.RC1.jar. I'll upgrade that into the Eclipse plugin and
do some tests. Unfortunately, my data model uses owned relationships
from the base class, which I guess doesn't work just yet. I'll report
back. Thanks.
On Nov 19, 8:22 pm, Rick Horowitz rickh...@gmail.com wrote:
Thank you for responding. This is not good, but I guess it could be
worse.
Google could be ignoring these problems instead of fixing them. One
more
question. What's the right way to install appengine-orm-1.0.4.rc1.zip
with
the Eclipse App Engine SDK 1.2.6? Do I just replace all the jars in the
SDK
with the jars from appengine-orm-1.0.4.rc1.zip?
Thanks very much.
Rick
On Thu, Nov 19, 2009 at 5:03 PM, Ikai L (Google) ika...@google.com
wrote:
The current version won't support inheritance, which may explain why
this
isn't working. It looks like fixes for inheritance will be going out
when
datanucleus is updated:
http://code.google.com/p/datanucleus-appengine/issues/detail?id=25
The stack trace looks different, though, but that may be because you
are
using a transaction, and the transaction manager is taking a look at
the key
that is being generated and does not recognize Address as having
Customer as an ancestor.
I'm not sure why you need a transaction here, though. It doesn't look
like
Customer or Address will be out of sync. You could also accomplish
the same
thing using an embedded class, though I suppose that wouldn't work if
multiple customers had the same address and addresses changed
frequently
(though you could solve this by updating all matching embedded
addresses if
an address changes in a transaction, making the Address the parent of
the
Customer).
-- Forwarded message --
From: Rick Horowitz rickh...@gmail.com
Date: Thu, Nov 19, 2009 at 1:44 PM
Subject: [google-appengine] Re: Can't get owned relationship working
with
JDO and subclass
To: Google App Engine google-appengine@googlegroups.com
Does anyone have any idea why this won't work? I've tried every
option
I can think of and it still doesn't work. Would really appreciate
some
help from someone knowledgeable about JDO and gae. I'm assuming it's
pretty basic to persist a subclass object whose superclass (base
class) references an owned object, but gae doesn't seem to like it. I
tried the base class as abstract and concrete, and tried the keys as
type Key and as encoded String. No luck.
Thanks very much for any help.
Rick
On Nov 15, 11:40 pm, Rick Horowitz rickh...@gmail.com wrote:
I'm trying to persist a simple class relationship using JDO. My
code
is listed below and here's a brief overview of what I'm trying to
do:
I have 3 classes:
Person, Customer (extends Person), and Address (referenced from
Person). If I create a Person instance and an Address instance and
call setAddress() on Person, then call
PersistenceManager.makePersistent(), the objects get saved
correctly.
However, if I create a Customer instance and an Address instance, I
get the following error message:
java.lang.IllegalArgumentException: can't
[google-appengine] votay - Wordpress of GAE
Hello, I started an open source GAE project called votay. The idea is to make Votay the Wordpress of GAE. There are 1000's of bloggers paying for PHP/mysql hosting and using wordpress that would come over to GAE if Wordpress would run here. They would gain: 1) free hosting 2) ability to scale if their blog traffic ever spikes You can see an example blog at http://www.votay.com/ It's far from ready to compete with Wordpress yet. I still have lots of work to do on the admin interface. But all the images and content are being stored in a DataStore, not coming from a static folder. I tried to find other open source GAE blogging projects and only saw these 7: http://github.com/jie/jieblog http://code.google.com/p/smalog/ http://code.google.com/p/niubi/ http://code.google.com/p/ytblog/ http://code.google.com/p/cpedialog/ http://github.com/anotherjesse/fobliki http://bloog.billkatz.com/ Does anyone know of others I missed? If there already is a Wordpress like blogging system for GAE that I just don't know about, please let me know! Thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Three questions about AppEngine datastore and benefits / cost of EntityGroups?
I understand EntityGroups allow you to use transaction management across multple writes of different kinds. This is clear benefit but I am trying to understand some more subtle benefits/costs of using EntityGroups. Question 1: When you define a chain of ownership between an entity and child entity, is the entity group defined at the root entity level or the kind level. For example of you have kind called Book and a child kind Chapter defined. If you have a Book entity named Intro to AppEngine, and it has three child entitles, Ch1, Ch2, and Ch3, is there 1 entityGroup containing Intro to AppEngine with its 3 child entities or is the entityGroup at the 'book level where it contains all entities of kind book along with all of the child entities? Question 2: Assuming you have an entityGroup with a chain of ownership of 3 different kinds. Does the write throughput vary based on whether we are using transactions or not. When Max Ross at Google I/O described write throughput on an entityGroup being from anywhere from 1 to 10 writes per second, were these numbers based on writes using appengine datastore transaction management or were these numbers based on writes without transactions. Question 3: The second question involves queries against data in an entity group. In the relational database world, some databases allow you to partition data within a table. The advantage of this, if done properly, is that queries against those tables result in scans against specific partitions (given parameters in where clause) as oppossed to full table scans across all data in the table. The query can perform much better with these partitions in place. With respect to the AppEngine datastore, do we get a performance boost with queries whose entities all reside within a single entity group? Thanks Enrique Perez -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: datastore viewer delay
Hi Richard, Yes, I have found the same: updates to the data store can take a while to be reflected in the data viewer. At first I thought I had done something wrong or was just incompetent, and then I cheered up! -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Why not implement a Django database backend for App Engine?
Search the django-devel group for non-relational db for info on this topic. Google has apparently set aside some time for this effort. On Nov 20, 7:34 pm, Andy Smith andys...@gmail.com wrote: I've started working on (or at least at this point only arguing with django people) this project as well, but it is still some time off so I wouldn't hold your breath quite yet. On Wed, Nov 18, 2009 at 11:11 AM, sserrano sebastian.serr...@gmail.comwrote: While it is a difficult task there is people trying to work around it. Follow wkornewald athttp://bitbucket.org/wkornewald/he is doing an excellent work Cheers, Sebastian Serrano http://www.sserrano.com On 18 nov, 09:54, frankabel frank.abel...@gmail.com wrote: Hi all, I'm newbie in this App Engine. As far I know, lot of Django app portability get solved if someone implement a Django database backend for App Engine. Even I read Once queryset-refactor lands in trunk, it might also be possible to write a database backend for App Engine that would allow any app to run properly. athttp:// martyalchin.com/2008/apr/8/appengine/ Somebody can explain me why isn't implemented yet such database backend? I, mean is a big deal? What are the main problems that ones must address to write such backend? If the backend exist, porting Django app will be more easy that using Google App Engine Helper for Django? Cheers Frank Abel -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2Bunsubscrib e...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Question on Free Stored Data Quota
I have a question on the Stored Data Quota. Google is offering us free 1GB quota for stored data. Currently, my total data base size is 0.9 GB. (0.1 GB) left. So, during next month, will my quota limit be reset? Will Google give me another free 1 GB data next months? Does it means, there will 1 + 0.5GB free stored data quota next month? Thanks! Cheok -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Problems with Bulk Uploading.
I am having a terrible time getting my bulk upload to work. It is working fine on my dev enviornment. When I try and upload to my app I get: [INFO 2009-11-21 23:49:48,233 bulkloader.py] Logging to bulkloader- log-20091121.234948 [INFO 2009-11-21 23:49:48,250 bulkloader.py] Throttling transfers: [INFO 2009-11-21 23:49:48,250 bulkloader.py] Bandwidth: 25 bytes/second [INFO 2009-11-21 23:49:48,250 bulkloader.py] HTTP connections: 8/ second [INFO 2009-11-21 23:49:48,250 bulkloader.py] Entities inserted/ fetched/modified: 20/second [INFO 2009-11-21 23:49:48,250 bulkloader.py] Opening database: bulkloader-progress-20091121.234948.sql3 [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-1] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-2] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-3] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-4] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-5] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-6] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-7] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-9] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-8] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 adaptive_thread_pool.py] [Thread-10] WorkerThread: started [DEBUG2009-11-21 23:49:48,608 bulkloader.py] Configuring remote_api. url_path = /remote_api, servername = railroadempire.appspot.com [DEBUG2009-11-21 23:49:48,608 bulkloader.py] Bulkloader using app_id: railroadempire [INFO 2009-11-21 23:49:48,608 bulkloader.py] Connecting to railroadempire.appspot.com/remote_api [INFO 2009-11-21 23:49:59,578 bulkloader.py] Authentication Failed Here is my app.yaml file: application: railroadempire version: 1 runtime: python api_version: 1 handlers: - url: /remote_api script: $PYTHON_LIB/google/appengine/ext/remote_api/handler.py login: admin - url: /.* script: environment.py I know I am just doing something stupid, but I have been trying to get this working for 2 hours now. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Question on Free Stored Data Quota
No, it is 1GB total. On Nov 22, 6:55 am, yccheok yancheng.ch...@gmail.com wrote: I have a question on the Stored Data Quota. Google is offering us free 1GB quota for stored data. Currently, my total data base size is 0.9 GB. (0.1 GB) left. So, during next month, will my quota limit be reset? Will Google give me another free 1 GB data next months? Does it means, there will 1 + 0.5GB free stored data quota next month? Thanks! Cheok -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: votay - Wordpress of GAE
The MVC framework that I have created for AppEngine comes with a blogging demo application. The framework, MVCEngine, is hosted on Google Code: http://code.google.com/p/gae-mvc-engine/ The blogging app is in the demo subdirectory. My personal blog, blog.adamcrossland.net runs on this software. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Re: votay - Wordpress of GAE
On Sun, Nov 22, 2009 at 7:39 PM, Adam adam.crossl...@gmail.com wrote: The MVC framework that I have created for AppEngine comes with a blogging demo application. The framework, MVCEngine, is hosted on Google Code: http://code.google.com/p/gae-mvc-engine/ The blogging app is in the demo subdirectory. My personal blog, blog.adamcrossland.net runs on this software. For note, none of the links on your site that link to other areas of your site work, they all show blank pages (not even the empty htmlbody/body/html)... -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: datastore viewer delay
Hi Richard, Yes, I have found the same: updates to the data store can take a while to be reflected in the data viewer. At first I thought I had done something wrong or was just incompetent, and then I cheered up! -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: votay - Wordpress of GAE
Woah! That was odd! I redeployed, and everything is OK again. I can't imagine what had gone wrong there. Thanks for the heads-up, Overmind. On Nov 22, 9:44 pm, OvermindDL1 overmind...@gmail.com wrote: On Sun, Nov 22, 2009 at 7:39 PM, Adam adam.crossl...@gmail.com wrote: The MVC framework that I have created for AppEngine comes with a blogging demo application. The framework, MVCEngine, is hosted on Google Code: http://code.google.com/p/gae-mvc-engine/ The blogging app is in the demo subdirectory. My personal blog, blog.adamcrossland.net runs on this software. For note, none of the links on your site that link to other areas of your site work, they all show blank pages (not even the empty htmlbody/body/html)... -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Re: votay - Wordpress of GAE
On Sun, Nov 22, 2009 at 9:03 PM, Adam adam.crossl...@gmail.com wrote: Woah! That was odd! I redeployed, and everything is OK again. I can't imagine what had gone wrong there. Thanks for the heads-up, Overmind. No problem, I know how irritating it is to have one of my sites mysteriously stop working for no reason. :) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
Re: [google-appengine] Three questions about AppEngine datastore and benefits / cost of EntityGroups?
Enrique, Q1: The datastore stores members of the same entity group together. If I correctly understand what you are asking, the entity group is defined by the child entity itself. In other words book does not contain chapters, but rather each chapter knows which book (if any) is its parent. A book might have another book, or even a chapter, as its parent since entity groups are just defined by keys. Q3: I think it might depend on exactly what you are doing. However, everything I have read indicates that putting too much stuff in the same entity group will not generally help your performance, but may actually hurt it. App engine requires you to build indexes for all of your non-trivial queries anyway, so I think this addresses the issue you are concerned about. Robert On Sun, Nov 22, 2009 at 4:47 PM, Enrique Perez enrique.m.pe...@gmail.comwrote: I understand EntityGroups allow you to use transaction management across multple writes of different kinds. This is clear benefit but I am trying to understand some more subtle benefits/costs of using EntityGroups. Question 1: When you define a chain of ownership between an entity and child entity, is the entity group defined at the root entity level or the kind level. For example of you have kind called Book and a child kind Chapter defined. If you have a Book entity named Intro to AppEngine, and it has three child entitles, Ch1, Ch2, and Ch3, is there 1 entityGroup containing Intro to AppEngine with its 3 child entities or is the entityGroup at the 'book level where it contains all entities of kind book along with all of the child entities? Question 2: Assuming you have an entityGroup with a chain of ownership of 3 different kinds. Does the write throughput vary based on whether we are using transactions or not. When Max Ross at Google I/O described write throughput on an entityGroup being from anywhere from 1 to 10 writes per second, were these numbers based on writes using appengine datastore transaction management or were these numbers based on writes without transactions. Question 3: The second question involves queries against data in an entity group. In the relational database world, some databases allow you to partition data within a table. The advantage of this, if done properly, is that queries against those tables result in scans against specific partitions (given parameters in where clause) as oppossed to full table scans across all data in the table. The query can perform much better with these partitions in place. With respect to the AppEngine datastore, do we get a performance boost with queries whose entities all reside within a single entity group? Thanks Enrique Perez -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] Re: Why not implement a Django database backend for App Engine?
From the django devel group: http://tinyurl.com/y9gpf55 This is probably the most up to date/informative info on non- relational db support for Django? On Nov 20, 7:34 pm, Andy Smith andys...@gmail.com wrote: I've started working on (or at least at this point only arguing with django people) this project as well, but it is still some time off so I wouldn't hold your breath quite yet. On Wed, Nov 18, 2009 at 11:11 AM, sserrano sebastian.serr...@gmail.comwrote: While it is a difficult task there is people trying to work around it. Follow wkornewald athttp://bitbucket.org/wkornewald/he is doing an excellent work Cheers, Sebastian Serrano http://www.sserrano.com On 18 nov, 09:54, frankabel frank.abel...@gmail.com wrote: Hi all, I'm newbie in this App Engine. As far I know, lot of Django app portability get solved if someone implement a Django database backend for App Engine. Even I read Once queryset-refactor lands in trunk, it might also be possible to write a database backend for App Engine that would allow any app to run properly. athttp:// martyalchin.com/2008/apr/8/appengine/ Somebody can explain me why isn't implemented yet such database backend? I, mean is a big deal? What are the main problems that ones must address to write such backend? If the backend exist, porting Django app will be more easy that using Google App Engine Helper for Django? Cheers Frank Abel -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2Bunsubscrib e...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
[google-appengine] View this page Google App Engine Open Source Projects
Added Votay Click on http://groups.google.com/group/google-appengine/web/google-app-engine-open-source-projects - or copy paste it into your browser's address bar if that doesn't work. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=.
