Re: [appengine-java] Re: Problem with persist a child class
Sorry, I did not see that your child class was inherited from another class.
I tried using inheritance with JDO some times ago.
Unsuccessfully : this is not supported by JDO yet.
See
http://code.google.com/intl/fr-FR/appengine/docs/java/datastore/dataclasses.
html#Inheritance
On 24/09/10 01:30, lisandrodc lisandr...@gmail.com wrote:
Hi!Cyrille I add a primary key in my child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
And the exception is:
Error in meta-data for model.RegFechaUsuario: More than one
primary key field.
Caused by:
Error in meta-data for model.RegFechaUsuario: More than one primary
key field.
org.datanucleus.store.appengine.MetaDataValidator
$DatastoreMetaDataException: Error in meta-data for
model.RegFechaUsuario: More than one primary key field.
at
org.datanucleus.store.appengine.MetaDataValidator.validatePrimaryKey(MetaDataV
alidator.java:
416)
at
org.datanucleus.store.appengine.MetaDataValidator.validate(MetaDataValidator.j
ava:
120)
at
org.datanucleus.store.appengine.DatastoreManager.validateMetaDataForClass(Data
storeManager.java:
766)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess(D
atastorePersistenceHandler.java:
328)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(Data
storePersistenceHandler.java:
251)
at
org.datanucleus.store.appengine.BatchPutManager.processBatchState(BatchPutMana
ger.java:
35)
at
org.datanucleus.store.appengine.BatchManager.finish(BatchManager.java:
54)
at org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.call(DatastoreJDOPersistenceManager.java:127)
at org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.access$200(DatastoreJDO
On 23 sep, 05:25, Cyrille Vincey crll...@gmail.com wrote:
There is no primary key in your child class.
Add one.
On 23/09/10 04:40, lisandrodc lisandr...@gmail.com wrote:
Hi ! I have a problem when persist a chid class.
The parent class:
@PersistenceCapable
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private String nombre;
@Persistent
private Date fechaIni;
@Persistent
private Date fechaFin;
@Persistent(defaultFetchGroup = true)
ListPartido partidos;
private Long id2;
private Long kind;
The child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
The method at persist:
public void crearRegFechaUsuario(RegFechaUsuario regFechaUsuario) {
//regFechaUsuario is an object initialized
Transaction tx = pm.currentTransaction();
try {
tx.begin();
pm.makePersistentAll(regFechaUsuario);
//here is the exception
tx.commit();
} finally {
// pm.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
And the exception is (internal error of the library of google apps or
datanucleus), the cast:
Problem accessing /Prode/JugarFecha.action. Reason:
java.lang.Long cannot be cast to java.lang.String
Caused by:
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.checkForParent
Sw
itch(DatastoreRelationFieldManager.java:
202)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.setObjectViaMapping(DatastoreRelationFieldManager.java:133)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.apply(DatastoreRelationFieldManager.java:112)
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations
(D
atastoreRelationFieldManager.java:
81)
at
org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(Datasto
re
FieldManager.java:
955)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(D
at
astorePersistenceHandler.java:
546)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProces
s(
DatastorePersistenceHandler.java:
304)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(Da
ta
storePersistenceHandler.java:
256)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(Dat
as
torePersistenceHandler.java:
240)
at
org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent(JDOStateMan
ag
erImpl.java:
3185)
at
[appengine-java] javax.naming.InitialContext is a restricted class
Hi, I am trying to deploy a sample JSF 2.0 application using the following guide http://java.dzone.com/news/jsf2-configuration-google-app But on deploy getting this error in the logs : http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-google-app-engine-sdk-1-2-6/ WARNING: Error starting handlers Throwable occurred: java.lang.NoClassDefFoundError: javax.naming.InitialContext is a restricted class. Please see the Google App Engine developer's guide for more details. at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java: 51) at com.sun.faces.config.WebConfiguration.processJndiEntries(WebConfiguration.java: 578) at com.sun.faces.config.WebConfiguration.init(WebConfiguration.java: 114) at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java: 174) at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java: 161) at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java: 548) at org.mortbay.jetty.servlet.Context.startContext(Context.java:136) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 50) at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java: 185) at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java: 146) at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java: 222) at com.google.appengine.tools.development.DevAppServerMain $StartAction.apply(DevAppServerMain.java:171) at com.google.appengine.tools.util.Parser $ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain.init(DevAppServerMain.java: 120) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java: 96) Tried few other links but in vain, please suggest Bhanwar Gupta www.bhanwar.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=en.
[appengine-java] Creating indexes on List of String elements
I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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] Problem with indexes on List of String elements
I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. Plus, i want to upload smth like this keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲, keyWordsList ▲, key ▼ so i can include about 5 words in my query text My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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] Problem with indexes on ListString
I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. Plus, i want to upload smth like this keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲, keyWordsList ▲, key ▼ so i can include about 5 words in my query text My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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] Problem with indexes on ListString
I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. Plus, i want to upload smth like this keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲, keyWordsList ▲, key ▼ so i can include about 5 words in my query text My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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: Problem with persist a child class
you don't need an aditional key
your problem is that you already have a @PrimaryKey in Fecha so you don't
need it in RegFechaUsuario.
Cheers,
Fernando
On Thu, Sep 23, 2010 at 8:30 PM, lisandrodc lisandr...@gmail.com wrote:
Hi!Cyrille I add a primary key in my child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
And the exception is:
Error in meta-data for model.RegFechaUsuario: More than one
primary key field.
Caused by:
Error in meta-data for model.RegFechaUsuario: More than one primary
key field.
org.datanucleus.store.appengine.MetaDataValidator
$DatastoreMetaDataException: Error in meta-data for
model.RegFechaUsuario: More than one primary key field.
at
org.datanucleus.store.appengine.MetaDataValidator.validatePrimaryKey(MetaDataValidator.java:
416)
at
org.datanucleus.store.appengine.MetaDataValidator.validate(MetaDataValidator.java:
120)
at
org.datanucleus.store.appengine.DatastoreManager.validateMetaDataForClass(DatastoreManager.java:
766)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess(DatastorePersistenceHandler.java:
328)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:
251)
at
org.datanucleus.store.appengine.BatchPutManager.processBatchState(BatchPutManager.java:
35)
at
org.datanucleus.store.appengine.BatchManager.finish(BatchManager.java:
54)
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.call(DatastoreJDOPersistenceManager.java:127)
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.access$200(DatastoreJDO
On 23 sep, 05:25, Cyrille Vincey crll...@gmail.com wrote:
There is no primary key in your child class.
Add one.
On 23/09/10 04:40, lisandrodc lisandr...@gmail.com wrote:
Hi ! I have a problem when persist a chid class.
The parent class:
@PersistenceCapable
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private String nombre;
@Persistent
private Date fechaIni;
@Persistent
private Date fechaFin;
@Persistent(defaultFetchGroup = true)
ListPartido partidos;
private Long id2;
private Long kind;
The child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
The method at persist:
public void crearRegFechaUsuario(RegFechaUsuario regFechaUsuario) {
//regFechaUsuario is an object initialized
Transaction tx = pm.currentTransaction();
try {
tx.begin();
pm.makePersistentAll(regFechaUsuario);
//here is the exception
tx.commit();
} finally {
// pm.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
And the exception is (internal error of the library of google apps or
datanucleus), the cast:
Problem accessing /Prode/JugarFecha.action. Reason:
java.lang.Long cannot be cast to java.lang.String
Caused by:
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.checkForParentSw
itch(DatastoreRelationFieldManager.java:
202)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.setObjectViaMapping(DatastoreRelationFieldManager.java:133)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.apply(DatastoreRelationFieldManager.java:112)
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations(D
atastoreRelationFieldManager.java:
81)
at
org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(Datastore
FieldManager.java:
955)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(Dat
astorePersistenceHandler.java:
546)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProcess(
DatastorePersistenceHandler.java:
304)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(Data
storePersistenceHandler.java:
256)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(Datas
Re: [appengine-java] Creating indexes on List of String elements
You're facing the exploding indexes problem. You should never put more than 1 list properties in one composite index. This problem is described in the GAE doc. http://code.google.com/intl/fr-FR/appengine/docs/python/datastore/queriesan dindexes.html#Big_Entities_and_Exploding_Indexes On 24/09/10 15:54, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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: Namespace design issues
What about the ability to move an entity to a namespace? On Sep 23, 10:57 pm, John Patterson jdpatter...@gmail.com wrote: On 24 Sep 2010, at 02:55, Mouseclicker wrote: API. The need to set and later reset a global setting is dangerous and error-prone. Probably that's what Guillaume mentions with The fear I had was when seeing a static methods being used. I'm always afraid when I see 'static' somewhere. Me too! The namespace is not global or static but stored per-thread so it must be set for every request e.g. in a servlet Filter. There is no problem setting it for a single operation if it is reset in a finally block. I personally like the way that the namespace API is completely separated from other APIs. In fact, I would prefer it if the memcache API namespace did not override the namespace API namespace... that caused a subtle bug the other day. It really is very important to be able to see all the stored data in the datastore viewer without requiring the user to enter the namespace. Especially as the user could be billed for data they cannot delete. -- 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: Problem with indexes on List of String elements
Sorry about the multiple posting. I tried for about an hour to post this message :( On Sep 24, 4:03 pm, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. Plus, i want to upload smth like this keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲, keyWordsList ▲, key ▼ so i can include about 5 words in my query text My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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: Creating indexes on List of String elements
Hmm... i understand the problem. But, if i want to query using a text with multiple words and NO sorting order, i use the build-in index supplied default right ? So, what do i do for 90.000 entities ?? because it seams that the build-in index is not powerful enough ! The built-in indices are not efficient enough for this query and your data. Please add a composite index for this query.. An index is missing but we are unable to tell you which one due to a bug in the App Engine SDK. If your query only contains equality filters you most likely need a composite index on all the properties referenced in those filters. So the solution is creating a index like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ Isn't this really the build-in index ? On Sep 24, 5:16 pm, Cyrille Vincey crll...@gmail.com wrote: You're facing the exploding indexes problem. You should never put more than 1 list properties in one composite index. This problem is described in the GAE doc.http://code.google.com/intl/fr-FR/appengine/docs/python/datastore/que... dindexes.html#Big_Entities_and_Exploding_Indexes On 24/09/10 15:54, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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] org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException
i am trying to make a persistent class stored in the datastore...i got this exception..amnew to app engine ppls reply Uncaught exception from servlet org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException: The class The class hare.krishna.LoginBean is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data/annotations for the class are not found. is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data for the class is not found. -- 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: Creating indexes on List of String elements
I am afraid you will have to change your data model. By the way, I remember that someone shared so times ago his code for a full text search implementation in GAE. Maybe you should check this out. On 24/09/10 17:01, Ice13ill andrei.fifi...@gmail.com wrote: Hmm... i understand the problem. But, if i want to query using a text with multiple words and NO sorting order, i use the build-in index supplied default right ? So, what do i do for 90.000 entities ?? because it seams that the build-in index is not powerful enough ! The built-in indices are not efficient enough for this query and your data. Please add a composite index for this query.. An index is missing but we are unable to tell you which one due to a bug in the App Engine SDK. If your query only contains equality filters you most likely need a composite index on all the properties referenced in those filters. So the solution is creating a index like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ Isn't this really the build-in index ? On Sep 24, 5:16 pm, Cyrille Vincey crll...@gmail.com wrote: You're facing the exploding indexes problem. You should never put more than 1 list properties in one composite index. This problem is described in the GAE doc.http://code.google.com/intl/fr-FR/appengine/docs/python/datastore/que ... dindexes.html#Big_Entities_and_Exploding_Indexes On 24/09/10 15:54, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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: JSF2 f:ajax does not work for me... Any Ideas Why?
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
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[appengine-java] Re: Creating indexes on List of String elements
Well, that is what i'm using :) FTS with self merged join (if that is what you're refering to) The problem here is with the build-in indexes (it should be able to serve those queries that matches a text on a singe list property, for a large number of entities right ?). As i understand, the FTS in GAE is based on the ability of matching a list of keywords against the list field of the entities you want to search (equality filter) right? On Sep 24, 6:29 pm, Cyrille Vincey crll...@gmail.com wrote: I am afraid you will have to change your data model. By the way, I remember that someone shared so times ago his code for a full text search implementation in GAE. Maybe you should check this out. On 24/09/10 17:01, Ice13ill andrei.fifi...@gmail.com wrote: Hmm... i understand the problem. But, if i want to query using a text with multiple words and NO sorting order, i use the build-in index supplied default right ? So, what do i do for 90.000 entities ?? because it seams that the build-in index is not powerful enough ! The built-in indices are not efficient enough for this query and your data. Please add a composite index for this query.. An index is missing but we are unable to tell you which one due to a bug in the App Engine SDK. If your query only contains equality filters you most likely need a composite index on all the properties referenced in those filters. So the solution is creating a index like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ Isn't this really the build-in index ? On Sep 24, 5:16 pm, Cyrille Vincey crll...@gmail.com wrote: You're facing the exploding indexes problem. You should never put more than 1 list properties in one composite index. This problem is described in the GAE doc.http://code.google.com/intl/fr-FR/appengine/docs/python/datastore/que ... dindexes.html#Big_Entities_and_Exploding_Indexes On 24/09/10 15:54, Ice13ill andrei.fifi...@gmail.com wrote: I'm trying to implement a search based on a list of keywords (string). The list is created based on the content of the objects' fields and i use it when matching against a query text. The problem is that i can't create indexes on App engine (i get Error after about 30 mins, and i have to delete it). There are about 90,000 entities of that kind and the index should looke like this: keyWordsList ▲ , keyWordsList ▲ , keyWordsList ▲ , key ▼ and i have about four of them. My question: do i want to much ? :) I tried uploading about 4 indexes and i got Error. I tried uploading 1 and worked (but needed about 2-3 h). Is there a problem if i try to create 4 indexes of this magnitude (and why)? Can i be sure that uploading one by one will work? Or maybe this problem is related to AppEngine datastore problems ? Please advice ! -- 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: JSF2 f:ajax does not work for me... Any Ideas Why?
Hi Daniel,
For a possible workaround, have you tried manually coding the
JavaScript for the Ajax request call?
For example, instead of:
h:commandButton
f:ajax render=foo/
/h:commandButton
... manually coding the JavaScript for the Ajax request call would be:
h:commandButton onclick=jsf.ajax.request(this,event,
{render:'foo'});return false;/
This was taken from:
http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax-declarative
Also, is this the only JSF2 tag that you've encountered that does't
appear to be working in App Engine?
-Chris
On Sep 24, 8:31 am, Daniel vedm...@gmail.com wrote:
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
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[appengine-java] Re: JSF2 f:ajax does not work for me... Any Ideas Why?
I tried this too... but its the same.. does not work :/
On Sep 24, 6:15 pm, Chris (Google Employee) api.ch...@google.com
wrote:
Hi Daniel,
For a possible workaround, have you tried manually coding the
JavaScript for the Ajax request call?
For example, instead of:
h:commandButton
f:ajax render=foo/
/h:commandButton
... manually coding the JavaScript for the Ajax request call would be:
h:commandButton onclick=jsf.ajax.request(this,event,
{render:'foo'});return false;/
This was taken
from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
Also, is this the only JSF2 tag that you've encountered that does't
appear to be working in App Engine?
-Chris
On Sep 24, 8:31 am, Daniel vedm...@gmail.com wrote:
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
--
You received this message because you are subscribed to the Google
Groups
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[appengine-java] Re: JSF2 f:ajax does not work for me... Any Ideas Why?
I tried this too... but its the same.. does not work :/
On Sep 24, 6:15 pm, Chris (Google Employee) api.ch...@google.com
wrote:
Hi Daniel,
For a possible workaround, have you tried manually coding the
JavaScript for the Ajax request call?
For example, instead of:
h:commandButton
f:ajax render=foo/
/h:commandButton
... manually coding the JavaScript for the Ajax request call would be:
h:commandButton onclick=jsf.ajax.request(this,event,
{render:'foo'});return false;/
This was taken
from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
Also, is this the only JSF2 tag that you've encountered that does't
appear to be working in App Engine?
-Chris
On Sep 24, 8:31 am, Daniel vedm...@gmail.com wrote:
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
--
You received this message because you are subscribed to the Google
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[appengine-java] Re: JSF2 f:ajax does not work for me... Any Ideas Why?
I tried this too... but its the same.. does not work :/
On Sep 24, 6:15 pm, Chris (Google Employee) api.ch...@google.com
wrote:
Hi Daniel,
For a possible workaround, have you tried manually coding the
JavaScript for the Ajax request call?
For example, instead of:
h:commandButton
f:ajax render=foo/
/h:commandButton
... manually coding the JavaScript for the Ajax request call would be:
h:commandButton onclick=jsf.ajax.request(this,event,
{render:'foo'});return false;/
This was taken
from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
Also, is this the only JSF2 tag that you've encountered that does't
appear to be working in App Engine?
-Chris
On Sep 24, 8:31 am, Daniel vedm...@gmail.com wrote:
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
--
You received this message because you are subscribed to the Google
Groups
Google App Engine for Java group.
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[appengine-java] Re: Channel api / Dance dance robot: what is ApplicationError: 2:
Hello, I tried following your technique (on AppEngine 1.3.7), but it does not seem to help... if i view the source of the page, i do see that it attempts to load the jsapi file, but i still get SEVERE: Failed to push the message com.google.appengine.demos.dda.shared.dancebeginmess...@145d7f2 to client dance-dance-android- ahFkYW5jZS1kYW5jZS1yb2JvdHIWCxIER2FtZRgHDAsSBlBsYXllchgRDA [java] com.google.appengine.api.channel.ChannelFailureException: An unexpected error occurred. [java] at com.google.appengine.api.channel.ChannelServiceImpl.sendMessage(ChannelServiceImpl.java: 59) [java] at com.google.appengine.demos.dda.server.PushServer.sendMessageByKey(Unknown Source) [java] Caused by: com.google.apphosting.api.ApiProxy $ApplicationException: ApplicationError: 2: [java] at com.google.appengine.api.channel.dev.LocalChannelService.sendChannelMessage(LocalChannelService.java: 91) I would really like to get this to work, so i can mess around more with channels from java/gwt. thanks, shlomi On Jul 28, 11:31 am, Daniel Guermeur superco...@gmail.com wrote: Thanks Don. Works perfectly. Here is a recap to summarize all the steps so others can do it too: 1. Extract the apphosting/tools/dev-channel-js.js file from appengine-api-1.0-sdk-1.3.5.jar 2. Create a directory _ah/channel in your war directory 3. Rename dev-channel-js.js to jsapi and place it in _ah/channel dir. 4. In your main html file include this jsapi file with script src=/ _ah/channel/jsapi. Daniel -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Problem with persist a child class
Yes Fernando, but if I delete the @PrimaryKey in RegFechaUsuario,
the exception is
Problem accessing /Prode/JugarFecha.action. Reason:
java.lang.Long cannot be cast to java.lang.String
Caused by:
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
The child class in your builder, initialize attributes with
inheritance
of his father:
public RegFechaUsuario(String nombre, Date fechaIni, Date fechaFin,
Long idUsuarioFecha, Long idFechaOriginal,
ListPartidopartidos)
{
super(nombre,fechaIni,fechaFin,partidos);
this.puntos = 0;
this.idUsuarioFecha = idUsuarioFecha;
this.idFechaOriginal = idFechaOriginal;
this.partidos=partidos;
}
Regards
On 24 sep, 00:07, Fernando O. fot...@gmail.com wrote:
you don't need an aditional key
your problem is that you already have a @PrimaryKey in Fecha so you don't
need it in RegFechaUsuario.
Cheers,
Fernando
On Thu, Sep 23, 2010 at 8:30 PM, lisandrodc lisandr...@gmail.com wrote:
Hi!Cyrille I add a primary key in my child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@PrimaryKey
�...@persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
�...@persistent
private int puntos;
�...@persistent
private Long idUsuarioFecha;
�...@persistent
private Long idFechaOriginal;
And the exception is:
Error in meta-data for model.RegFechaUsuario: More than one
primary key field.
Caused by:
Error in meta-data for model.RegFechaUsuario: More than one primary
key field.
org.datanucleus.store.appengine.MetaDataValidator
$DatastoreMetaDataException: Error in meta-data for
model.RegFechaUsuario: More than one primary key field.
at
org.datanucleus.store.appengine.MetaDataValidator.validatePrimaryKey(MetaDataValidator.java:
416)
at
org.datanucleus.store.appengine.MetaDataValidator.validate(MetaDataValidator.java:
120)
at
org.datanucleus.store.appengine.DatastoreManager.validateMetaDataForClass(DatastoreManager.java:
766)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess(DatastorePersistenceHandler.java:
328)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:
251)
at
org.datanucleus.store.appengine.BatchPutManager.processBatchState(BatchPutManager.java:
35)
at
org.datanucleus.store.appengine.BatchManager.finish(BatchManager.java:
54)
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.call(DatastoreJDOPersistenceManager.java:127)
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager
$BatchManagerWrapper.access$200(DatastoreJDO
On 23 sep, 05:25, Cyrille Vincey crll...@gmail.com wrote:
There is no primary key in your child class.
Add one.
On 23/09/10 04:40, lisandrodc lisandr...@gmail.com wrote:
Hi ! I have a problem when persist a chid class.
The parent class:
@PersistenceCapable
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private String nombre;
@Persistent
private Date fechaIni;
@Persistent
private Date fechaFin;
@Persistent(defaultFetchGroup = true)
ListPartido partidos;
private Long id2;
private Long kind;
The child class:
@PersistenceCapable(identityType =
IdentityType.APPLICATION,detachable=true)
public class RegFechaUsuario extends Fecha {
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
The method at persist:
public void crearRegFechaUsuario(RegFechaUsuario regFechaUsuario) {
//regFechaUsuario is an object initialized
Transaction tx = pm.currentTransaction();
try {
tx.begin();
pm.makePersistentAll(regFechaUsuario);
//here is the exception
tx.commit();
} finally {
// pm.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
And the exception is (internal error of the library of google apps or
datanucleus), the cast:
Problem accessing /Prode/JugarFecha.action. Reason:
java.lang.Long cannot be cast to java.lang.String
Caused by:
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.checkForParentSw
itch(DatastoreRelationFieldManager.java:
202)
at
Re: [appengine-java] Problem with persist a child class
I've managed to make class inheritance work for me using JDO.
The only difference I see between my annotations and yours is I'm using
@Inheritance(customStrategy = complete-table)
InheritanceStrategyhttp://www.datanucleus.org/javadocs/core/1.1/org/datanucleus/metadata/InheritanceStrategy.html
*COMPLETE_TABLEhttp://www.datanucleus.org/javadocs/core/1.1/org/datanucleus/metadata/InheritanceStrategy.html#COMPLETE_TABLE
*
Another idea is to trim your class members down to see exactly which one(s)
is producing the type conflict.
Lastly, I'm not sure that class inheritance is the problem at all...
Are you working with a totally empty datastore?
Did you change the type of a member from String to Long?
On Sun, Sep 19, 2010 at 7:22 AM, lisandrodc lisandr...@gmail.com wrote:
Hi! I have a problem with persist a child class.
The classes are:
The parent class:
@PersistenceCapable
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class Fecha {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private String nombre;
@Persistent
private Date fechaIni;
@Persistent
private Date fechaFin;
@Persistent(defaultFetchGroup = true)
ListPartido partidos;
The child class:
@PersistenceCapable
public class RegFechaUsuario extends Fecha {
@Persistent
private int puntos;
@Persistent
private Long idUsuarioFecha;
@Persistent
private Long idFechaOriginal;
And the code of run the exception is:
Transaction tx = pm.currentTransaction();
try {
tx.begin();
pm.makePersistentAll(regFechaUsuario);
//here is the exception
tx.commit();
And the regFechaUsuario is created with the build:
public RegFechaUsuario(String nombre, Date fechaIni, Date fechaFin,
Long idUsuarioFecha, Long idFechaOriginal,
ListPartidopartidos)
{
//super(nombre,fechaIni,fechaFin,partidos);
this.puntos = 0;
this.idUsuarioFecha = idUsuarioFecha;
this.idFechaOriginal = idFechaOriginal;
this.partidos=partidos;
}
The exception is:
Problem accessing /Prode/JugarFecha.action. Reason:
java.lang.Long cannot be cast to java.lang.String
Caused by:
java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.checkForParentSwitch(DatastoreRelationFieldManager.java:
202)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.setObjectViaMapping(DatastoreRelationFieldManager.java:133)
at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.apply(DatastoreRelationFieldManager.java:112)
at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations(DatastoreRelationFieldManager.java:
81)
at
org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(DatastoreFieldManager.java:
955)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(DatastorePersistenceHandler.java:
546)
at org.datanucleus.store.appengine.DatastorePersistenceHandler.
Regards
Lisandro
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[appengine-java] Re: Sharded Counters in Java not using Transactions?
I posted the question on Stackoverflow and the consensus is that it
should be wrapped in a transaction.
http://stackoverflow.com/questions/3782296/java-google-appengine-sharded-counters-without-transactions
I also opened an Appengine issue (is this the right way to report
issues in documentation?):
http://code.google.com/p/googleappengine/issues/detail?id=3778q=shardedcolspec=ID%20Type%20Status%20Priority%20Stars%20Owner%20Summary%20Log%20Component
On Sep 21, 12:24 pm, Doug Daniels daniels.doug...@gmail.com wrote:
I'm going through the Sharded Counters example in
Java:http://code.google.com/appengine/articles/sharding_counters.html
I have a question about the implementation of the increment method. In
python it explicitly wraps the get() and increment in a transaction.
In the Java example it just retrieves it and sets it. I'm not sure I
fully understand the Datastore and transactions but it seems like the
critical update section should be wrapped in a datastore transaction.
Am I missing something?
Original code:
public void increment() {
PersistenceManager pm = PMF.get().getPersistenceManager();
Random generator = new Random();
int shardNum = generator.nextInt(NUM_SHARDS);
try {
Query shardQuery = pm.newQuery(SimpleCounterShard.class);
shardQuery.setFilter(shardNumber == numParam);
shardQuery.declareParameters(int numParam);
ListSimpleCounterShard shards =
(ListSimpleCounterShard) shardQuery.execute(shardNum);
SimpleCounterShard shard;
// If the shard with the passed shard number exists, increment
its count
// by 1. Otherwise, create a new shard object, set its count to
1, and
// persist it.
if (
Transactional code:
public void increment() {
PersistenceManager pm = PMF.get().getPersistenceManager();
Random generator = new Random();
int shardNum = generator.nextInt(NUM_SHARDS);
try {
Query shardQuery = pm.newQuery(SimpleCounterShard.class);
shardQuery.setFilter(shardNumber == numParam);
shardQuery.declareParameters(int numParam);
ListSimpleCounterShard shards =
(ListSimpleCounterShard) shardQuery.execute(shardNum);
SimpleCounterShard shard;
// If the shard with the passed shard number exists, increment
its count
// by 1. Otherwise, create a new shard object, set its count to
1, and
// persist it.
if (shards != null !shards.isEmpty()) {
Transaction tx = pm.currentTransaction();
try {
tx.begin();
//I believe in a transaction objects need to be
loaded by ID (can't
use the outside queried entity)
Key shardKey =
KeyFactory.Builder(SimpleCounterShard.class.getSimpleName(),
shards.get(0).getID())
shard = pm.getObjectById(SimpleCounterShard.class,
shardKey);
shard.setCount(shard.getCount() + 1);
tx.commit();
} finally {
if (tx.isActive()) {
tx.rollback();
}
}
} else {
shard = new SimpleCounterShard();
shard.setShardNumber(shardNum);
shard.setCount(1);
}
pm.makePersistent(shard);
} finally {
pm.close();
}
}
}
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[appengine-java] simultaneous user request failures
Hi, I have an application which normally responds to user requests in the 100 -200 ms range with nominal API/CPU utilization, but occasionally will have a request simply time out. (infrequently and randomly). Even more interesting, I have noticed in testing simulating 9-10 simultaneous users making simultaneous requests that groups of those users will get failures at the same time! It's been difficult to interpret the problems as it seems the requests are sometimes timing out in my servlet, and other times not being processed by front side. The requests that fail are writing a simple object or deleting a simple object from the DS. The objects are each in their on Entity Groups, so I can't see how the rate of writing or deleting (1/req) could be an issue. As I said, the errors are intermittent and infrequent, but when they do happen, it really screws up my sync protocol. Is there a possibility this is happening when my app is being launched on a new server or process? What can I do to debug this problem? I should say from a data model perspective, each of these users operates in a unique namespace. Thanks in advance. -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.
[appengine-java] Question about logging rates
I have an application that writes a lot of log entries at the INFO level. The application has a lot of requests to very quickly operating servlets. Is it possible that the logging can get behind the requests, or cause my application to suffer performance degradation? Should I be worried about cutting back in my log output for a highly scalable high request level type application? Thanks, -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.
[appengine-java] Re: PayPal Payflow Pro Connection Error
I am using Java, are you talking PayPalX? Doesn't that only support paypal accounts, i.e. not credit cards? If your code does work with credit cards can you post a basic example of your pay method? Thanks for the help! On Sep 23, 10:13 pm, nischalshetty nischalshett...@gmail.com wrote: Are you on Python or Java? I have my app on Java and PayPal provides an official java API for Google Appengine. It works great for me! -N On Sep 23, 6:42 pm, Shaun shaunc...@gmail.com wrote: I think that this is due to Google's limitation for allowing connections to port 443. But when I try to connect to PayPal for a payment I get the error: Transaction Context Errors: Message 1:: [FATAL]RESULT=-1RESPMSG=Failed to connect to host Input Server Uri=https://pilot-payflowpro.paypal.com:443; Is there anyway around this or will this feature be available when Business Edition goes live? Any help is much appreciate it! Thanks, Shaun -- 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] Java Adwords API not compatible with AppEngine
I just heard back from the AdWords team: Currently the Java client library is not supported on AppEngine. The classes that the library uses are blacklisted by the AppEngine runtime (so while it may work locally, it will not work when your run it). We are hoping to look at official AppEngine support sometime in the next few quarters but do not have an ETA as of yet. Any idea when you might be working on this? It's nice to be able to access all of Google's services from App Engine. Thanks! Shaun -- 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] How to make GWT + App Engine application crawlable?
I'm still not able to retrieve the query string from my servlet filter. For example after application is deployed to Google App Engine, and then browse X.appspot.com/X.html?a=b. The query string is null. Can you help me on this, please? On Thu, Sep 23, 2010 at 1:21 PM, hezjing hezj...@gmail.com wrote: Probably that was a bad query string, but the servlet filter is not able to retrieve the query string from http://127.0.0.1:/Hello.html?A=Bgwt.codesvr=127.0.0.1:9997 too! http://127.0.0.1:/Hello.html?A=Bgwt.codesvr=127.0.0.1:9997 On Thu, Sep 23, 2010 at 10:04 AM, John Patterson jdpatter...@gmail.comwrote: On 23 Sep 2010, at 07:47, hezjing wrote: When run in the GWT development mode, e.g. http://127.0.0.1:/X.html?_escaped_fragment_=gwt.codesvr=127.0.0.1:9997, the application without App Engine is able to retrieve the query string as _escaped_fragment_=gwt.codesvr=127.0.0.1:9997. The problem is, the application with App Engine is always getting the null query string! You need to encode the query string - the character is not allowed in a value. http://download.oracle.com/javase/1.4.2/docs/api/java/net/URLEncoder.html -- 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. -- Hez -- Hez -- 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: JSF2 f:ajax does not work for me... Any Ideas Why?
seems to be solved by removing primefaces-2.2.M1.jar
weird???
but works now...
On Sep 24, 7:56 pm, Daniel vedm...@gmail.com wrote:
I tried this too... but its the same.. does not work :/
On Sep 24, 6:15 pm, Chris (Google Employee) api.ch...@google.com
wrote:
Hi Daniel,
For a possible workaround, have you tried manually coding the
JavaScript for the Ajax request call?
For example, instead of:
h:commandButton
f:ajax render=foo/
/h:commandButton
... manually coding the JavaScript for the Ajax request call would be:
h:commandButton onclick=jsf.ajax.request(this,event,
{render:'foo'});return false;/
This was taken
from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
Also, is this the only JSF2 tag that you've encountered that does't
appear to be working in App Engine?
-Chris
On Sep 24, 8:31 am, Daniel vedm...@gmail.com wrote:
I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/
On Sep 23, 9:22 pm, Daniel vedm...@gmail.com wrote:
Hi
this does not help... same behavior...
i got my jsf jars from here
:http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
and followed the setting of web.xml from
herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...
any other ideas are welcomed.
Thanks ahead
Daniel
On Sep 23, 3:24 pm, Jaziel Leandro jaziel...@gmail.com wrote:
I have the same error few times ago.
Try this, make you Bean implements Serializable.
2010/9/23 Daniel vedm...@gmail.com
I'm want to use the f:ajax tag of the JSF 2 on app engine... but
without any luck
I tried some very simple examples taken from
http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
all of them works perfectly on local Tomcat (not GAE)
But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example
On each char type I'm supposed to sea the same char typed beneath
and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)
Any ideas what am i missing?
h:form
h:panelGrid
h:inputText value=#{bean.text}
f:ajax event=keyup render=text count
listener=#{bean.countListener}/
/h:inputText
h:outputText id=text value=#{bean.text} /
h:outputText id=count value=#{bean.count} /
/h:panelGrid
/h:form
java code:
package general;
import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;
@ManagedBean(name = bean)
public class Bean {
private String text; // getter and setter
private Integer count;
public void countListener(AjaxBehaviorEvent event) {
count = text.length();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Integer getCount() {
return count;
}
public void setCount(Integer count) {
this.count = count;
}
}
Thanks ahead.
Daniel
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[appengine-java] Updating multiple entities (in different entity groups) with transaction
Hi, I want to update 2 different entities of same type but in different entity groups with transaction i.e. either both entities should get updated or none. Can we make 2 transaction instances (tx), one for each entity, update each entity separately, if one transaction fails, rollback the other one ? -- Prashant www.claymus.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=en.
[appengine-java] what if tx.commit() fails ?
Hi, I have a small doubt with transactions. Suppose I am trying to update an entity using transaction and before I commit my transaction, someone else updates the entity. Now what will happen ? Any exception will be thrown on tx.commit() call ? -- Prashant www.claymus.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=en.
