Re: Cannot obtain globalId for an object failure
Re: Cannot obtain globalId for an object failure
- Subject: Re: Cannot obtain globalId for an object failure
- From: Giles Palmer <email@hidden>
- Date: Sat, 19 Mar 2011 08:28:22 +0000
Hi Chuck
Thanks, see below...
>
>
>> Hi
>>
>> I have just had an exception thrown on some relatively recent code, that has worked fine until now..
>>
>> java.lang.IllegalStateException: Cannot obtain globalId for an object which is registered in its editingContext,
>> object: <indoc.app.entities.Container pk:"496">,
>> databaseContext: er.extensions.eof.ERXDatabaseContext@ee260b,
>> object's editingContext: er.extensions.eof.ERXEC@1fe6055,
>> databaseContext's active editingContext: null
>
> That last part:
>> databaseContext's active editingContext: null
>
> Indicates the problem.
Yeah, I just don't quite understand what "active editingContext" means to the databaseContext or how it can be null.
>
>
>> Context:
>>
>> This is part of a background notification system which works roughly like:
>>
>> 1) NSNotificationCenter triggers a callback that...
>>
>> 2) Creates a new Runnable and globalIds of objects are passed into this runnable from their original editing context. A ThreadPoolExecutor the executes the thread.
>>
>> 3) The new thread creates a new editing context that uses an ERXRoundRobinCollection to grab an EOObjectStoreCoordinator. This EOObjectStoreCoordinator is only used in the notification part of the application, and the ERXRoundRobinCollection contains just a couple of instances of a EOObjectStoreCoordinator at a time.
>>
>> The ec is created with:
>> ERXEC notificationtEC = (ERXEC) ERXEC.newEditingContext(objectStoreCollection.nextObjectStoreCoordinator());
>>
>> and the EOObjectStoreCoordinators with:
>> ERXObjectStoreCoordinator osc = new ERXObjectStoreCoordinator(true);
>>
>>
>> 4) I then use the newly created notificationtEC to convert the globalIds back to EOs like.. eo = ERXEOControlUtilities.convertGIDtoEO(notificationtEC, gid);
>
> Are you locking the EC that you created?
>
No I am not explicitly locking anything. The app is a full blown Wonder app and I was under the impression that this relinquished me from having to worry about locking provided I was using ERXEC to create my editing contexts etc. Is this not the case then?
Regards
Giles
>
>>
>> 5) I then use the same notificationtEC to fetch various objects etc to build the notifications and send out an email.
>>
>> The full stack trace is below.
>>
>> I was under the impression that having a new database stack should be a pretty safe way to do such a task in a separate thread. Do you have any idea what I am doing wrong?
>>
>> I do not quite understand the meaning of the above java.lang.IllegalStateException Any ideas much appreciated.
>>
>> Thanks
>>
>> Giles
>>
>> Mar 18 12:32:10 OLWAInDoc[2001] pool-3-thread-1 ERROR indoc.app.event.IDEventObserverCoordinator$ChannelRunnable - Error in ChannelRunnable.run() Cannot obtain globalId for an object which is registered in its editingContext, object: <indoc.app.entities.Container pk:"496">, databaseContext: er.extensions.eof.ERXDatabaseContext@ee260b, object's editingContext: er.extensions.eof.ERXEC@1fe6055, databaseContext's active editingContext: null
>> java.lang.IllegalStateException: Cannot obtain globalId for an object which is registered in its editingContext, object: <indoc.app.entities.Container pk:"496">, databaseContext: er.extensions.eof.ERXDatabaseContext@ee260b, object's editingContext: er.extensions.eof.ERXEC@1fe6055, databaseContext's active editingContext: null
>> at com.webobjects.eoaccess.EODatabaseContext._globalIDForObject(EODatabaseContext.java:4660)
>> at com.webobjects.eoaccess.EODatabaseContext.valuesForKeys(EODatabaseContext.java:6509)
>> at com.webobjects.eocontrol.EOObjectStoreCoordinator.valuesForKeys(EOObjectStoreCoordinator.java:326)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_KeyValueQualifierSupport.schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:439)
>> at er.extensions.ERXExtensions$KeyValueQualifierSQLGenerationSupport.schemaBasedQualifierWithRootEntity(ERXExtensions.java:355)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:179)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_AndQualifierSupport.schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:530)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:179)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_AndQualifierSupport.schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:530)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:179)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_OrQualifierSupport.schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:567)
>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:179)
>> at com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecification(EODatabaseChannel.java:227)
>> at com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecificationEditingContext(EODatabaseContext.java:3055)
>> at er.extensions.eof.ERXDatabaseContext._objectsWithFetchSpecificationEditingContext(ERXDatabaseContext.java:66)
>> at com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification(EODatabaseContext.java:3195)
>> at com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecification(EOObjectStoreCoordinator.java:488)
>> at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4069)
>> at er.extensions.eof.ERXEC.objectsWithFetchSpecification(ERXEC.java:1206)
>> at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4444)
>> at indoc.app.entities._IDEventRegistration.fetchIDEventRegistrations(_IDEventRegistration.java:351)
>> at indoc.app.event.IDEventObserverCoordinator$ChannelRunnable.processEventRegistrations(IDEventObserverCoordinator.java:238)
>> at indoc.app.event.IDEventObserverCoordinator$ChannelRunnable.run(IDEventObserverCoordinator.java:143)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>> at java.lang.Thread.run(Thread.java:619)
>>
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> --
> Chuck Hill Senior Consultant / VP Development
>
> Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
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