[appengine-java] JDO - Add a child - Error
Hi! I have a problem when add a class "Equipo"(child) one
"Torneo"(parent).
The code:
Transaction tx = pm.currentTransaction();
try {
tx.begin();
unTorneo.agregarEquipo(unEquipo);
//pm.makePersistent(unEquipo);
Torneo tor = (Torneo) pm.detachCopy(unTorneo);
pm.makePersistent(tor);
tx.commit();
System.out.println("persistioTorneoConEquipo");
} finally {
//pm.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
The exception:
INTERNAL_SERVER_ERROR
Caused by:
java.lang.NullPointerException
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.deleteObject(DatastorePersistenceHandler.java:
581)
at
org.datanucleus.store.appengine.DatastoreFKListStoreSpecialization.removeAt(DatastoreFKListStoreSpecialization.java:
145)
at
org.datanucleus.store.mapped.scostore.FKListStore.removeAt(FKListStore.java:
525)
at
org.datanucleus.store.mapped.scostore.AbstractListStore.remove(AbstractListStore.java:
318)
at org.datanucleus.sco.backed.List.remove(List.java:907)
at org.datanucleus.sco.SCOListIterator.remove(SCOListIterator.java:
145)
at
org.datanucleus.sco.SCOUtils.updateListWithListElements(SCOUtils.java:
828)
at org.datanucleus.sco.simple.List.attachCopy(List.java:232)
at
org.datanucleus.store.fieldmanager.AttachFieldManager.storeObjectField(AttachFieldManager.java:
205)
at
org.datanucleus.state.AbstractStateManager.providedObjectField(AbstractStateManager.java:
1037)
at model.Torneo.jdoProvideField(Torneo.java)
at model.Torneo.jdoProvideFields(Torneo.java)
at
org.datanucleus.state.JDOStateManagerImpl.provideFields(JDOStateManagerImpl.java:
2715)
at
org.datanucleus.state.JDOStateManagerImpl.internalAttachCopy(JDOStateManagerImpl.java:
4055)
at
org.datanucleus.state.JDOStateManagerImpl.attachCopy(JDOStateManagerImpl.java:
3987)
at
org.datanucleus.ObjectManagerImpl.attachObjectCopy(ObjectManagerImpl.java:
1778)
at
org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:
1260)
at
org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:
1175)
at
org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:
669)
at
org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:
694)
at
controllers.ControladorTorneo.agregarEquipoConTorneo(ControladorTorneo.java:
135)
at struts.action.NuevoEquipo.execute(NuevoEquipo.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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[appengine-java] Roadmap plans
I have noticed three issues that have been continually mentioned but the date for projected fix (if at all) is unclear. Does anyone know of availability or projected availability. The three are: 1. EL2.2 support for JSF 2. This will allow parameters to be used with action method calls. The issue has been there since summer 2010. 2. Servlets 3.0 3. SQL availability with Appengine for Business (originally 3rd quarter of 2010) Dave -- 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: Massive Problems with CPU/Guice Servlet and Channel API
Thanks a lot Moishe, I'm using now only http and included the channel.js directly. Once I included the channel.js directly, the stack trace appears on localhost too (with and without https)! Deployed it's the same as before. I really don't know whats going on :( Btw. you have to use the latest chrome canary build due a bug with chrome/regex/webkit/extjs (http://code.google.com/p/chromium/issues/ detail?id=66515). Application: http://phone-messenger.appspot.com/ Application JS: http://code.google.com/p/phone-messenger/source/browse/trunk/war/javascripts/application.js Servlet: http://code.google.com/p/phone-messenger/source/browse/trunk/src/de/rentoudu/chat/server/servlet/ChannelTokenServlet.java On 16 Dez., 21:31, Moishe wrote: > I'm trying to take a look at this now. One thing I noticed is that > your app is using https. I know of one bug with https, and a fix will > roll out for that in a couple of weeks. Does this problem still happen > if you use http? > > Also to make debugging easier, you can directly > includehttp://talkgadget.google.com/talkgadget/channel.jsinstead of /_ah/ > channel/jsapi. If you get a chance to make that change let me know and > I can take another look. > > Sorry for the trouble! > > On Dec 12, 8:23 am, Flori wrote: > > > > > > > > > Okay, i think the first issue, the high CPU avg, is normal.. but the > > second problem still exists! Every time i call channel.open(); the > > following stack trace appears: > > > Uncaught Error > > h jsapi:1 > > E djsapi:80 > > $ jsapi:75 > > Gd.open jsapi:81 > > loadApplication application.js:165 > > Ext.Ajax.request.success application.js:33 > > Ext.data.Connection.Ext.extend.onComplete sencha-touch.js:6 > > Ext.data.Connection.Ext.extend.onStateChange sencha-touch.js:6 > > (anonymous function) sencha-touch.js:6 > > > So can it may be that the problem is caused with the mix of Sencha > > Touch and the Channel library? I can't see what $ or E or h stands > > for. > > > cheers -- 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: JSP runtime errors in Eclipse plugin
Hi Rich I Got jsp error in The Guestbook from samples GAE r5(last release) running java 6 build 23 (last one ) in Windows vista. What versions you have? /cygdrive/c/users/juan/desktop/ndk/ndk5.0/android-ndk-r5 $ bash ndk-build platforms/android-9 Android NDK: Could not find application project directory ! Android NDK: Please define the NDK_PROJECT_PATH variable to point to it. /cygdrive/c/users/juan/desktop/ndk/ndk5.0/android-ndk-r5/build/core/ build-local. mk:85: *** Android NDK: Aborting. Stop. -- 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] Best way to approach templating?
I'm new to the Java App Engine and I've been searching for a way to have a
general template or theme for my site. I have a header, menu, and side bar
that will stay the same for all pages, so why not manage it through one
single jsp file? My thought was to have a jsp:include for the actual content
of a page. Such as when a user goes to mysite.com/aboutus, the servlet gives
the template, and the template includes aboutus.jsp. I think I've found you
can't have dynamic includes though. I tried this:
In the aboutus doGet() :
req.setAttribute("page", "aboutus");
req.getRequestDispatcher("/template.jsp").include(req, resp);
in the template.jsp:
.jsp"/>
but always get errors.
Any thoughts on the best practices for templates in GAE/java?
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[appengine-java] countEntities problem
Hi,
I'm using the low level API, and noticed something strange:
If I call :
service.prepare(
new Query(USER_KIND).addFilter("active", FilterOperator.EQUAL,
Boolean.TRUE)
.addFilter("registrationDate",
FilterOperator.GREATER_THAN_OR_EQUAL, date).setKeysOnly())
.countEntities(FetchOptions.Builder.withDefaults())
it returns 0.
However If I call:
service.prepare(
new Query(USER_KIND).addFilter("active", FilterOperator.EQUAL,
Boolean.TRUE)
.addFilter("registrationDate",
FilterOperator.GREATER_THAN_OR_EQUAL, date).setKeysOnly())
.asList(FetchOptions.Builder.withDefaults()).size()
it returns 3 - in this case this is the correct answer. I'm very
curious what happens here. Is there a problem with the indexes? But if
I not correctly configured my indexes, I guess, the second query
should fail similarly with returning 0 entity.
Any thought ? Is it a bug in the datastore ?
BR
Zsombor
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Re: [appengine-java] countEntities problem
Try adding a limit to the count query
On Sun, Dec 19, 2010 at 6:35 PM, Zsombor wrote:
> Hi,
>
> I'm using the low level API, and noticed something strange:
> If I call :
>
> service.prepare(
>new Query(USER_KIND).addFilter("active", FilterOperator.EQUAL,
> Boolean.TRUE)
> .addFilter("registrationDate",
> FilterOperator.GREATER_THAN_OR_EQUAL, date).setKeysOnly())
> .countEntities(FetchOptions.Builder.withDefaults())
>
> it returns 0.
>
> However If I call:
> service.prepare(
>new Query(USER_KIND).addFilter("active", FilterOperator.EQUAL,
> Boolean.TRUE)
> .addFilter("registrationDate",
> FilterOperator.GREATER_THAN_OR_EQUAL, date).setKeysOnly())
> .asList(FetchOptions.Builder.withDefaults()).size()
>
> it returns 3 - in this case this is the correct answer. I'm very
> curious what happens here. Is there a problem with the indexes? But if
> I not correctly configured my indexes, I guess, the second query
> should fail similarly with returning 0 entity.
>
> Any thought ? Is it a bug in the datastore ?
>
> BR
> Zsombor
>
> --
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> "Google App Engine for Java" group.
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> google-appengine-j...@googlegroups.com.
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>
>
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[appengine-java] What does "Memcache put: Error setting single item" mean?
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[appengine-java] What sort of indexes does GAE use for queries that use only equality and ancestor filters?
Documentation says: App Engine provides automatic indexes for the following forms of queries: queries using only equality and ancestor filters For implementation of this feature GAE uses single-property indexes or composite indexex or something else? If composite indexexes then how many indexes are used (for example: all possible permutations for properties)? -- 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: Persist child - Problem
Is the child annotated as @persistence capable? Is it serializable? It also depends on the type of keys used and key generator strategy. Show us the code defining each class and we'll let you know. Quizas asi te ayudamos a poner tu equipo en primera división! :-) -- 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.
