Can’t really tell looking a pseudo code, but I’ll take a guess. Auto locking works on a single thread. You can’t pass EOs to a background thread. You need to pass EOGlobalIDs to your runnable constructor instead and then create your new ec on the background thread when you begin processing. Your constructor is passing full EOs and thus you are getting weird behavior.
On Jan 29, 2015, at 9:41 AM, OC <[email protected]> wrote: > Hello there, > > well, the last fixes seem to have helped, at least, so far no problem related. > > Today though I've found one new problem, (hopefully) unrelated -- an EO > somehow lost its EC?!? > > The user can import CSV; since it takes a small eternity, the import runs in > a background task. The code essential skeleton looks like this: > > === > static ERXLongResponseTask csvTask(EOEnterpriseObject ownerEO) { > NSArray originalObjects=ownerEO.ownedObjects().clone() // note they > are in old EC (legacy code reasons) > ERXEC ec=ERXEC.newEditingContext() > ec.lock() // do I really need to lock here? > try { > ownerEO=ownerEO.localInstanceIn(ec) > } finally { > ec.unlock() > } > def task=new ImportCSVTask(ownerEO:ownerEO, original:originalObjects) > task.start() > task > } > ... > class ImportCSVTask extends ERXLongResponseTask.DefaultImplementation { > EOEnterpriseObject ownerEO > NSArray original > def performAction { > try { > for (... CSV reader and parser, line loop ...) { > EOEnterpriseObject > record=EOUtilities.createAndInsertInstance(ownerEO.editingContext(),"DBRecord") > println "-> $record" > record.owner=ownerEO > ... set up record contents from CSV fields ... > } > for (old in original) > old.localInstanceIn(ownerEO.editingContext()).owner=null // > owned relationship -> will delete > ownerEO.editingContext().saveChanges() // line 237 > } catch (exc) { > ... error management ... > } > } > } > === > > For about zillion times, the code worked all right; nevertheless, today, > saving crashed, and I've found this in my log (the <class@hasCode primaryKey > EC> is my own overridden toString, which simply prints > "/EC:this.editingContext()" or "/NULL-EC" in case > this.editingContext()==null; note also 0x27fcc396==670876566): > > === > ... > -> <DBRecord@278683965 PK:null N /EC:670876566> > ... 1500-odd more of similar ones ... > -> <DBRecord@653822193 PK:null N /EC:670876566> > ... 1500-odd more of similar ones ... > -> <DBRecord@1291010302 PK:null N /EC:670876566> > java.lang.IllegalStateException: Cannot obtain globalId for an object which > is not registered in any editingContext, object: <DBRecord@653822193 PK:null > N /NULL-EC>, databaseContext: > com.webobjects.eoaccess.EODatabaseContext@8fea539, object's editingContext: > null, databaseContext's active editingContext: > er.extensions.eof.ERXEC@27fcc396 > at > com.webobjects.eoaccess.EODatabaseContext._globalIDForObject(EODatabaseContext.java:4660) > at > com.webobjects.eoaccess.EODatabaseContext.databaseOperationForObject(EODatabaseContext.java:4767) > at > com.webobjects.eoaccess.EODatabaseContext.recordUpdateForObject(EODatabaseContext.java:6076) > at > com.webobjects.eoaccess.EODatabaseContext.relayAttributesInRelationshipSourceObjectDestinationObject(EODatabaseContext.java:4921) > at > com.webobjects.eoaccess.EODatabaseContext.relayAttributesInRelationshipSourceObjectDestinationObjects(EODatabaseContext.java:4966) > at > com.webobjects.eoaccess.EODatabaseContext.recordChangesInEditingContext(EODatabaseContext.java:6036) > at > com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditingContext(EOObjectStoreCoordinator.java:373) > at > com.webobjects.eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3192) > at er.extensions.eof.ERXEC._saveChanges(ERXEC.java:1179) > at er.extensions.eof.ERXEC.saveChanges(ERXEC.java:1102) > at er.extensions.eof.ERXEC$saveChanges$1.call(Unknown Source) > at others.ImportCSVTask.performAction(CSVImport.groovy:237) > === > > Other threads did save other EC's meantime, but far as I can say, neither > this temporary EC nor the objects created here were touched anyhow from other > threads. > > As always, I'll be grateful for any idea what might lead to this abomination > :-O > > Thanks, > OC > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/webobjects-dev/rgurley%40smarthealth.com > > This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
