[appengine-java] Re: DatastoreService instances
Thanks John and Jeff. Thread-safety is a good enough reason to not keep a DS instance lying around. On Apr 1, 8:52 pm, Jeff Schnitzer j...@infohazard.org wrote: Appengine devs have said on a number of occasions that we should not assume thread-safety of any class not documented as being thread-safe. I don't see anything in the javadocs indicating that DatastoreService is thread-safe, therefore keeping an appwide instance of DS is probably risky - even if it works today. I'd suggest opening a fresh DatastoreService very time you need one. Jeff On Thu, Apr 1, 2010 at 7:07 PM, John Patterson jdpatter...@gmail.com wrote: As Ikai pointed out a DatastoreService is really very light weight so it really makes very little difference. If you are changing the config properties from place to place your only options are to cache each service by config or create a new one each time. If I were writing code by hand I would choose the simple option of creating one as needed with the options you want at the time. On 2 Apr 2010, at 08:09, keyurva wrote: In my application, I create a DatastoreService instance, maintain a reference to it and use it for the life of that instance of the application. In another discussion I learned that the cost of creating a new DatastoreService instance is negligible. Given that, is it still advisable for me to maintain a copy of the DatastoreService instance or should I create one anew every time I need to go to the datastore? Thanks, Keyur -- 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. -- 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. -- 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: DatastoreService instances
Thanks John and Jeff. On Apr 1, 8:52 pm, Jeff Schnitzer j...@infohazard.org wrote: Appengine devs have said on a number of occasions that we should not assume thread-safety of any class not documented as being thread-safe. I don't see anything in the javadocs indicating that DatastoreService is thread-safe, therefore keeping an appwide instance of DS is probably risky - even if it works today. I'd suggest opening a fresh DatastoreService very time you need one. Jeff On Thu, Apr 1, 2010 at 7:07 PM, John Patterson jdpatter...@gmail.com wrote: As Ikai pointed out a DatastoreService is really very light weight so it really makes very little difference. If you are changing the config properties from place to place your only options are to cache each service by config or create a new one each time. If I were writing code by hand I would choose the simple option of creating one as needed with the options you want at the time. On 2 Apr 2010, at 08:09, keyurva wrote: In my application, I create a DatastoreService instance, maintain a reference to it and use it for the life of that instance of the application. In another discussion I learned that the cost of creating a new DatastoreService instance is negligible. Given that, is it still advisable for me to maintain a copy of the DatastoreService instance or should I create one anew every time I need to go to the datastore? Thanks, Keyur -- 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. -- 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. -- 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] Google Enhancer - persistent final
Hello, I've had this problem a few times and it's hard to debug if you don't know where to look : When I have a final List in a Datastore object, it won't save or load the content from the datastore. Sounds logical ? well, with Eclipse, if you don't write the setter, eclipse puts final automatically... So maybe it would be a good idea to put a warning in the enhancer when it finds a persistent final object ? Mathieu -- 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] Datastore + UI testing
Is there a way to combine datastore testing with local HTTP requests so that you simultaneously validate the state of the datastore and the way the data is displayed to the user? -- 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] Google Enhancer - persistent final
Hello, I've had this problem a few times and it's hard to debug if you don't know where to look : When I have a final List in a Datastore object, it won't save or load the content from the datastore. Sounds logical ? well, with Eclipse, if you don't write the setter, eclipse puts final automatically... So maybe it would be a good idea to put a warning in the enhancer when it finds a persistent final object ? Mathieu P.S. Sorry if you see this message twice, i sent it without the [appengine-java] and wasn't sure if it would be read -- 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: Eventually consistent reads and JDO
Hi there, How can I use this with the low level datastore, I've looked around in the JavaDocs and found ReadPolicy.Consistency but couldn't find anywhere to set it. It could be just me as it's 1AM. Would love to try it out. On Apr 1, 11:39 am, Isdal tomas.is...@gmail.com wrote: Thanks Ikai! I noticed that the docs are updated now too. This page has a couple examples on it as well:http://code.google.com/appengine/docs/java/datastore/usingjdo.html // Tomas On Mar 30, 3:57 pm, Ikai L (Google) ika...@google.com wrote: Yep. The example is documented here: http://googleappengine.blogspot.com/2010/03/read-consistency-deadline... http://googleappengine.blogspot.com/2010/03/read-consistency-deadline...Query q = pm.newQuery(Employee.class); q.addExtension(datanucleus.appengine.datastoreReadConsistency, EVENTUAL); On Fri, Mar 26, 2010 at 5:12 PM, Isdal tomas.is...@gmail.com wrote: Hi all, Thanks for all new new features in 1.3.2! I was just wondering if it is possible to use the ReadPolicy.Consistency.EVENTUAL feature and still use the JDO interface. I am currently getting a PersistenceManager with: JDOHelper.getPersistenceManagerFactory(transactions- optional); Is there a way to tell the PersistenceManager to tell the datastore to accept eventually consistent reads? Most of my app can handle stale data, and any performance improvement would be great! Thanks! // Tomas -- 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%2B unsubscr...@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 Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- 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: Eventually consistent reads and JDO
I finally figured it out, its on the Datastore config level. DatastoreServiceConfig config = DatastoreServiceConfig.Builder.withReadPolicy(new ReadPolicy(Consistency. EVENTUAL)); DatastoreService dss = DatastoreServiceFactory.getDatastoreService(config); I thought it would have been on the Query object as it is in the JDO example posted in the blog. I was using a singleton as I thought we were only meant to instantiate one DatastoreService instance and reuse it?? On Fri, Apr 2, 2010 at 1:04 AM, lepah mfarn...@gmail.com wrote: Hi there, How can I use this with the low level datastore, I've looked around in the JavaDocs and found ReadPolicy.Consistency but couldn't find anywhere to set it. It could be just me as it's 1AM. Would love to try it out. On Apr 1, 11:39 am, Isdal tomas.is...@gmail.com wrote: Thanks Ikai! I noticed that the docs are updated now too. This page has a couple examples on it as well: http://code.google.com/appengine/docs/java/datastore/usingjdo.html // Tomas On Mar 30, 3:57 pm, Ikai L (Google) ika...@google.com wrote: Yep. The example is documented here: http://googleappengine.blogspot.com/2010/03/read-consistency-deadline. .. http://googleappengine.blogspot.com/2010/03/read-consistency-deadline.. .Query q = pm.newQuery(Employee.class); q.addExtension(datanucleus.appengine.datastoreReadConsistency, EVENTUAL); On Fri, Mar 26, 2010 at 5:12 PM, Isdal tomas.is...@gmail.com wrote: Hi all, Thanks for all new new features in 1.3.2! I was just wondering if it is possible to use the ReadPolicy.Consistency.EVENTUAL feature and still use the JDO interface. I am currently getting a PersistenceManager with: JDOHelper.getPersistenceManagerFactory(transactions- optional); Is there a way to tell the PersistenceManager to tell the datastore to accept eventually consistent reads? Most of my app can handle stale data, and any performance improvement would be great! Thanks! // Tomas -- 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.comgoogle-appengine-java%2B unsubscr...@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 Enginehttp:// googleappengine.blogspot.com|http://twitter.com/app_engine -- 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: Book Recommendation
Hello, definitely, you must read http://www.amazon.com/Programming-Google-App-Engine-Infrastructure/dp/059652272X/ref=sr_1_1?ie=UTF8s=booksqid=1270201752sr=8-1 tons of infos that you won't find anywhere else in such details didier On Apr 2, 4:18 am, iwas9409 t.lomb...@gmail.com wrote: I'm lower intermediate programmer that would like to delve into Google App Engine for Java using is Data store. Can someone recommend a good book or additional places then the 'getting started' stuff on Google App Engine with Java. -Tom -- 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: How to exclude requests to /stats when viewing appstats?
Well, the pb is i don't know exactly. I actually need all of them... well except /stats :P On 1 April 2010 22:19, Peter Ondruska peter.ondru...@gmail.com wrote: Well, then let the filter filter explicitly those url-patterns you want to check stats for. On 1 dub, 16:20, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to use appstats to view the requests to my app. But i can't exclude the requests to /stats/ as stated in the dev guide: This installs the filter for all URLs, with the url-pattern of /*. (This includes the Appstats web-based administration interface discussed in the next section, which you may prefer to exclude from recording.) You can specify a different pattern to limit Appstats to URLs that match the pattern. I tried creating a filter witch treats request to url-pattern /stats/* and placing it before the AppstatsFilter mapping in the web.xml file, but it just shows a blank page, not the appstats GUI. Is there an exclusion tag or regex to use within the url-patter tag ? -- 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: Low-level API and eventual consistency
Should we create a new instance per query? Or just use two instances (strong/eventual) for the whole app? -g. On Apr 2, 2:29 am, Ikai L (Google) ika...@google.com wrote: That's correct. The cost of creating an instance is negligible, though. It's not dissimilar to creating different MemcacheService instances with different write policies. On Thu, Apr 1, 2010 at 4:09 PM, keyurva keyu...@gmail.com wrote: I use the low-level datastore API. At runtime, I want to use the new eventual consistency on occasions and strong consistency at others. I was looking at the Query class to set the consistency option but noticed that it is only available in DatastoreServiceConfig. Is it expected that one needs to use different DatastoreService instances for different read policies? Or am I missing something obvious? Thanks, Keyur -- 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%2B unsubscr...@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 Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- 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: java.lang.ClassNotFoundException: com.google.appengine.tools.appstats.AppstatsFilter
Thanks a lot, it worked. I guess there was some problem with Google Plugin, it didn't replace the jars when I updated my sdk version. -- 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: GAE Plugin not working.
Thanks Keith, I used Run as Administrator (right mouse click on application) to start Eclipse and then added the Appengine for Java plugin. Unless I'm missing something, Microsoft isn't terribly forthright about the security changes and the need to manually change to administrator in some cases.. I did learn something else during this installation. I had assumed that I had to install JEE to get the web stuff that the appengine plugin uses. I now see that Eclipse downloads all the other stuff it needs. I know that Eclipse downloads the dependencies that are needed for a plugin, but wasn't sure about JEE. Dennis On Mar 31, 4:54 pm, Keith Platfoot kplatf...@google.com wrote: Dennis, Are you running Eclipse with Administrator privileges? We've had other users report they had to do so in order to successfully install the Google Plugin for Eclipse. Keith On Tue, Mar 30, 2010 at 10:28 PM, dennisM meade.den...@gmail.com wrote: I can't get Appengine for Java 1.3.2 Eclipse plugin for Galileo to install properly on Windows 7. I get a variety of error messages about jars already being there, I'll post more specific info about the errors shortly, but thought this might be familiar to others. Is there something special I need to do to get the plugin to work on Windows 7? On Mar 5, 2:33 pm, Ahmad ahmad...@gmail.com wrote: I am also unable to install gae plugin for eclipse 3.5 -- gelilio , on windows7 -- 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: Java Mail Service
Hi The java API javadoc at http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/mail/MailService.html provides send() and sendToAdmins() methods, Can you try using sendToAdmins() ? Regards, KarthikR On Apr 1, 7:17 am, moissinac jcmoissi...@gmail.com wrote: Hello I have servlet with a code copied from the documentation for sending an email with the mail service Each time I call the service, I see the trace in the quota count like this: Mail Mail API Calls 0% 0% 5 of 7000 Okay Recipients Emailed 0% 0% 5 of 2000 Okay Admins Emailed 0% 0% 0 of 5000 Okay ... The count for Mail API Calls and Recipients Emailed is incremented each time My code send an email from the admin of my domain to the admin of my admin, but the item Admins Emailed is never incremented The admin of my domain (me) never receive an email by that mean. If I send an email with gmail to the same address, it receive the email. Advice? help? Thank you inadvance -- 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] JAXB Support
Brian, I am doing exactly the same thing. I followed the blog below and didn't have any problems. I hope that this helps. http://tugdualgrall.blogspot.com/2010/02/create-and-deploy-jax-rs-rest-service.html On Fri, Apr 2, 2010 at 9:55 AM, Brian hannawaybr...@googlemail.com wrote: Hi, I've run into an issue with JAXB on GAE. I have set up a simple project using Jersey to expose a RESTful web service and am using JAXB for marshalling/unmarshalling. The project runs fine in my local eclipse environment but when I upload to GAE and send a request to the web service I am getting a JAXB exception (see stack trace below). I am using the latest version of JAXB and the latest version of GAE SDK. According to the white list JAXB should now be supported so I'm not sure what's going on. Any help to resolve this issue would be greatly appreciated. Uncaught exception from servlet java.lang.ExceptionInInitializerError at com.sun.xml.bind.v2.runtime.reflect.opt.AccessorInjector.prepare(AccessorInjector.java: 79) at com.sun.xml.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.get(OptimizedAccessorFactory.java: 165) at com.sun.xml.bind.v2.runtime.reflect.Accessor $FieldReflection.optimize(Accessor.java:256) at com.sun.xml.bind.v2.runtime.property.ArrayProperty.init(ArrayProperty.java: 65) at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.init(ArrayERProperty.java: 84) at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.init(ArrayElementProperty.java: 96) at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.init(ArrayElementNodeProperty.java: 58) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Constructor.java:33) at com.sun.xml.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java: 124) at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.init(ClassBeanInfoImpl.java: 179) at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java: 515) at com.sun.xml.bind.v2.runtime.JAXBContextImpl.init(JAXBContextImpl.java: 330) at com.sun.xml.bind.v2.runtime.JAXBContextImpl $JAXBContextBuilder.build(JAXBContextImpl.java:1140) at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java: 154) at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java: 121) at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java: 202) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:159) at javax.xml.bind.ContextFinder.find(ContextFinder.java:311) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at com.sun.jersey.server.impl.wadl.WadlApplicationContextImpl.init(WadlApplicationContextImpl.java: 66) at com.sun.jersey.server.impl.wadl.WadlFactory.init(WadlFactory.java: 94) at com.sun.jersey.server.impl.application.WebApplicationImpl.initWadl(WebApplicationImpl.java: 1207) at com.sun.jersey.server.impl.application.WebApplicationImpl.processRootResources(WebApplicationImpl.java: 1106) at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java: 912) at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java: 589) at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java: 403) at com.sun.jersey.spi.container.servlet.ServletContainer $InternalWebComponent.initiate(ServletContainer.java:252) at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java: 550) at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java: 201) at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java: 307) at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java: 470) at javax.servlet.GenericServlet.init(GenericServlet.java:215) at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java: 440) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java: 263) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 50) at
Re: [appengine-java] Datastore + UI testing
Are you looking to test the servlets or to do a full-stack integration test that also involves executing Javascript? I'd recommend Selenium: http://seleniumhq.org/ http://seleniumhq.org/Just note that the more components you test in a single suite, the more brittle your tests will be. Selenium tests will give you the most confidence, but they're also the most work to maintain. On Fri, Apr 2, 2010 at 12:54 AM, Adrian B adrian.bog...@gmail.com wrote: Is there a way to combine datastore testing with local HTTP requests so that you simultaneously validate the state of the datastore and the way the data is displayed to the user? -- 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 http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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: Eventually consistent reads and JDO
You're probably best off creating new instances of DatastoreService. There are some good points raised here: https://groups.google.com/group/google-appengine-java/browse_thread/thread/e19b792042b2ff9b# On Fri, Apr 2, 2010 at 1:26 AM, Matt Farnell mfarn...@gmail.com wrote: I finally figured it out, its on the Datastore config level. DatastoreServiceConfig config = DatastoreServiceConfig.Builder.withReadPolicy(new ReadPolicy(Consistency. EVENTUAL)); DatastoreService dss = DatastoreServiceFactory.getDatastoreService(config); I thought it would have been on the Query object as it is in the JDO example posted in the blog. I was using a singleton as I thought we were only meant to instantiate one DatastoreService instance and reuse it?? On Fri, Apr 2, 2010 at 1:04 AM, lepah mfarn...@gmail.com wrote: Hi there, How can I use this with the low level datastore, I've looked around in the JavaDocs and found ReadPolicy.Consistency but couldn't find anywhere to set it. It could be just me as it's 1AM. Would love to try it out. On Apr 1, 11:39 am, Isdal tomas.is...@gmail.com wrote: Thanks Ikai! I noticed that the docs are updated now too. This page has a couple examples on it as well: http://code.google.com/appengine/docs/java/datastore/usingjdo.html // Tomas On Mar 30, 3:57 pm, Ikai L (Google) ika...@google.com wrote: Yep. The example is documented here: http://googleappengine.blogspot.com/2010/03/read-consistency-deadline. .. http://googleappengine.blogspot.com/2010/03/read-consistency-deadline.. .Query q = pm.newQuery(Employee.class); q.addExtension(datanucleus.appengine.datastoreReadConsistency, EVENTUAL); On Fri, Mar 26, 2010 at 5:12 PM, Isdal tomas.is...@gmail.com wrote: Hi all, Thanks for all new new features in 1.3.2! I was just wondering if it is possible to use the ReadPolicy.Consistency.EVENTUAL feature and still use the JDO interface. I am currently getting a PersistenceManager with: JDOHelper.getPersistenceManagerFactory(transactions- optional); Is there a way to tell the PersistenceManager to tell the datastore to accept eventually consistent reads? Most of my app can handle stale data, and any performance improvement would be great! Thanks! // Tomas -- 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.comgoogle-appengine-java%2B unsubscr...@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 Enginehttp:// googleappengine.blogspot.com|http://twitter.com/app_engine -- 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. -- Ikai Lan Developer Programs Engineer, Google App Engine http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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] Lost record updates after server restart
Do you have any code samples you can post? On Sun, Mar 28, 2010 at 7:26 PM, mozey moze...@gmail.com wrote: Hello everyone, I have a simple issue, and i'm sure its fix is simple as well. I have written a simple app's scaffolding front end. And i notice that when i add new records, they get persisted, but when i update records. The effect will last until i restart my server. Where could i start looking to get this fix? -- 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 http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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] Where is the jar file for i.cache.BasicCacheFactory'
I keep on getting this error - net.sf.jsr107cache.CacheException: Could not find class: 'ri.cache.BasicCacheFactory' Where is the jar file for this. I have jsr107-cache.1.1.jar on the path and I am running GAEJ 1.3.2 -- 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: Eventually consistent reads and JDO
Since it is not explicitly documented as thread safe, you should not make this assumption. Basically, it's the same as us telling you not to use undocumented methods because they *can* and *have* changed. On Fri, Apr 2, 2010 at 11:46 AM, Matt Farnell mfarn...@gmail.com wrote: Hi Ikai, It says in that forum that it's 'probably' not thread safe, so is it thread safe or not? If its not threadsafe then we should never use a singleton instance. Can you give us a more definitive answer such as it's not threadsafe so never cache the instance, or it is threadsafe so therefore it is up to us. It would be very helpful. thanks, Matt On Fri, Apr 2, 2010 at 9:54 AM, Ikai L (Google) ika...@google.com wrote: You're probably best off creating new instances of DatastoreService. There are some good points raised here: https://groups.google.com/group/google-appengine-java/browse_thread/thread/e19b792042b2ff9b# On Fri, Apr 2, 2010 at 1:26 AM, Matt Farnell mfarn...@gmail.com wrote: I finally figured it out, its on the Datastore config level. DatastoreServiceConfig config = DatastoreServiceConfig.Builder.withReadPolicy(newReadPolicy(Consistency. EVENTUAL)); DatastoreService dss = DatastoreServiceFactory.getDatastoreService(config); I thought it would have been on the Query object as it is in the JDO example posted in the blog. I was using a singleton as I thought we were only meant to instantiate one DatastoreService instance and reuse it?? On Fri, Apr 2, 2010 at 1:04 AM, lepah mfarn...@gmail.com wrote: Hi there, How can I use this with the low level datastore, I've looked around in the JavaDocs and found ReadPolicy.Consistency but couldn't find anywhere to set it. It could be just me as it's 1AM. Would love to try it out. On Apr 1, 11:39 am, Isdal tomas.is...@gmail.com wrote: Thanks Ikai! I noticed that the docs are updated now too. This page has a couple examples on it as well: http://code.google.com/appengine/docs/java/datastore/usingjdo.html // Tomas On Mar 30, 3:57 pm, Ikai L (Google) ika...@google.com wrote: Yep. The example is documented here: http://googleappengine.blogspot.com/2010/03/read-consistency-deadline. .. http://googleappengine.blogspot.com/2010/03/read-consistency-deadline.. .Query q = pm.newQuery(Employee.class); q.addExtension(datanucleus.appengine.datastoreReadConsistency, EVENTUAL); On Fri, Mar 26, 2010 at 5:12 PM, Isdal tomas.is...@gmail.com wrote: Hi all, Thanks for all new new features in 1.3.2! I was just wondering if it is possible to use the ReadPolicy.Consistency.EVENTUAL feature and still use the JDO interface. I am currently getting a PersistenceManager with: JDOHelper.getPersistenceManagerFactory(transactions- optional); Is there a way to tell the PersistenceManager to tell the datastore to accept eventually consistent reads? Most of my app can handle stale data, and any performance improvement would be great! Thanks! // Tomas -- 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.comgoogle-appengine-java%2B unsubscr...@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 Enginehttp:// googleappengine.blogspot.com|http://twitter.com/app_engine -- 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. -- Ikai Lan Developer Programs Engineer, Google App Engine http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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
Re: [appengine-java] Java Tasks
No, but your cron tasks may be loading requests. That is - we are firing up a version of your application due to low traffic. On Mon, Mar 29, 2010 at 12:51 PM, kscott kscot...@gmail.com wrote: I have a simple Java task that simply checks to see if it needs to send an email email sent flag =N. It is taking in excess of 6604 milliseconds to execute. Are tasks executed with a much lower priority? When I moved my start time to15 minutes later I was a least able to get rid of the most of the HTTP 500 errors caused by exceeding the simultaneous dynamic request limit. -- 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 http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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] _ah_SESSION index on _expires property
It's likely that we did this to improve throughput on session creation. Can you file a feature request? We'll need to figure out how to best make this a configurable flag for users that want it. On Wed, Mar 31, 2010 at 12:56 AM, Peter Ondruska peter.ondru...@gmail.comwrote: I am trying to automatically cleanup expired session by deleting records from _ah_SESSION. Instead of iterating through all records I tried to filter on _expires but it does not work because it is not indexed. Manual index creation failed. Is the index missing by design? 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.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 http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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: Datastore + UI testing
Thank you for the reply. I'm not looking into testing actual user interaction (or JavaScript for that matter). I have some JSP pages that output HTML with minimum formatting, and that's what I want to test right now. The ideal solution would be something like: 1. Create and persist a new entity of a particular type 2. Check that the entity is retrieved by a method 3. Check that the entity is visible in the UI (just parse the simple HTML). The question is what would be the best setup to manipulate the datastore and request pages in the same test session? On Apr 2, 7:53 pm, Ikai Lan i...@google.com wrote: Are you looking to test the servlets or to do a full-stack integration test that also involves executing Javascript? I'd recommend Selenium: http://seleniumhq.org/ http://seleniumhq.org/Just note that the more components you test in a single suite, the more brittle your tests will be. Selenium tests will give you the most confidence, but they're also the most work to maintain. On Fri, Apr 2, 2010 at 12:54 AM, Adrian B adrian.bog...@gmail.com wrote: Is there a way to combine datastore testing with local HTTP requests so that you simultaneously validate the state of the datastore and the way the data is displayed to the user? -- 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%2B unsubscr...@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 Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- 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: Datastore + UI testing
In a typical setup, you would use HtmlUnit: http://htmlunit.sourceforge.net/ http://htmlunit.sourceforge.net/I've heard conflicting reports regarding whether or not it works in App Engine out of the box. If you give this a try, can you email the group and let us know if it works as well as any configuration needed? I've been wanting to investigate this myself but it hasn't been high on my list. On Fri, Apr 2, 2010 at 2:51 PM, Adrian B adrian.bog...@gmail.com wrote: Thank you for the reply. I'm not looking into testing actual user interaction (or JavaScript for that matter). I have some JSP pages that output HTML with minimum formatting, and that's what I want to test right now. The ideal solution would be something like: 1. Create and persist a new entity of a particular type 2. Check that the entity is retrieved by a method 3. Check that the entity is visible in the UI (just parse the simple HTML). The question is what would be the best setup to manipulate the datastore and request pages in the same test session? On Apr 2, 7:53 pm, Ikai Lan i...@google.com wrote: Are you looking to test the servlets or to do a full-stack integration test that also involves executing Javascript? I'd recommend Selenium: http://seleniumhq.org/ http://seleniumhq.org/Just note that the more components you test in a single suite, the more brittle your tests will be. Selenium tests will give you the most confidence, but they're also the most work to maintain. On Fri, Apr 2, 2010 at 12:54 AM, Adrian B adrian.bog...@gmail.com wrote: Is there a way to combine datastore testing with local HTTP requests so that you simultaneously validate the state of the datastore and the way the data is displayed to the user? -- 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.comgoogle-appengine-java%2B unsubscr...@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 Enginehttp:// googleappengine.blogspot.com|http://twitter.com/app_engine -- 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 http://googleappengine.blogspot.com | http://twitter.com/app_engine -- 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: Appstats not working. /stats = 404
You should be redirected to /appstats/stats. Try to call this URL manually after you're authenticated as admin user. - Alex On Apr 3, 2:10 am, Arny arny...@googlemail.com wrote: Hi, I'm trying to get Appstats to work with no success. Added all the lines specified in the docs to my web.xml After signing in at /appstats, I'm getting a redirection to /stats, but there I get not found 404 error. I'm using appengine 1.3.2. Did I miss anything? Thanks Regards Arny -- 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: Appstats not working. /stats = 404
Thanks, that worked! No idea why it is redirecting to /stats Regards, Arny On Apr 3, 2:16 am, Alexander Orlov alexander.or...@loxal.net wrote: You should be redirected to /appstats/stats. Try to call this URL manually after you're authenticated as admin user. - Alex On Apr 3, 2:10 am, Arny arny...@googlemail.com wrote: Hi, I'm trying to get Appstats to work with no success. Added all the lines specified in the docs to my web.xml After signing in at /appstats, I'm getting a redirection to /stats, but there I get not found 404 error. I'm using appengine 1.3.2. Did I miss anything? Thanks Regards Arny -- 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: Appstats not working. /stats = 404
If you call the page from your Admin Console from the Custom/Appstats menu in the Appspot Admin Menu it's not a big surprise because there is a bug in the article (http://googleappengine.blogspot.com/2010/03/ easy-performance-profiling-with.html). appengine-web.xml shouldn't contain: admin-console page name=Appstats url=/stats / /admin-console but admin-console page name=Appstats url=/appstats/stats / !-- page name=Appstats url=/appstats/ / should work as well -- /admin-console - Alex On Apr 3, 2:41 am, Arny arny...@googlemail.com wrote: Thanks, that worked! No idea why it is redirecting to /stats Regards, Arny On Apr 3, 2:16 am, Alexander Orlov alexander.or...@loxal.net wrote: You should be redirected to /appstats/stats. Try to call this URL manually after you're authenticated as admin user. - Alex On Apr 3, 2:10 am, Arny arny...@googlemail.com wrote: Hi, I'm trying to get Appstats to work with no success. Added all the lines specified in the docs to my web.xml After signing in at /appstats, I'm getting a redirection to /stats, but there I get not found 404 error. I'm using appengine 1.3.2. Did I miss anything? Thanks Regards Arny -- 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] How-to debug JSP stack dump on GAE production
This trace below is from production environment. How do I find the memberHome_jsp.java so I can verify the problem at line 165? I found the .java file used for running locally, but this line# in question was inappropriate in regard to causing a null issue...so I must be looking at the wrong .java in the case of production dumps. Thanks, J Programming Details - java.lang.NullPointerException at org.apache.jsp.app2.memberHome_jsp._jspService(memberHome_jsp.java: 165) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) 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.handle(ServletHandler.java: 390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) -- 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.
