This problem goes away if I call setRetainsRegisteredObjects(true) on the EC in question. So presumably garbage collection was somehow resulting in the relationships turning into faults. Perhaps I should have said that the call manifests itself between separate requests coming in and that I am looking to cache EOs beyond a single request. I know that retaining all registered objects in the EC can lead to memory-hungry apps, so I'll monitor to see if that is a problem, but at lease I finally know where the root of the problem lies.
On 5 Sep 2012, at 19:37, Chuck Hill wrote: > Something is not what you think it is. > > This trace: > >>>>> at mp.eo.StockItem.turnIntoFault(StockItem.java:1714) >>>>> at >>>>> com.webobjects.eocontrol.EOFaultHandler.makeObjectIntoFault(EOFaultHandler.java:161) >>>>> at >>>>> com.webobjects.eoaccess.EODatabaseContext._turnToFaultGidEditingContextIsComplete(EODatabaseContext.java:3363) >>>>> at >>>>> com.webobjects.eoaccess.EODatabaseContext.faultForGlobalID(EODatabaseContext.java:3397) >>>>> at >>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.faultForGlobalID(EOObjectStoreCoordinator.java:537) >>>>> at >>>>> com.webobjects.eocontrol.EOEditingContext.faultForGlobalID(EOEditingContext.java:3608) > > Means that EOEditingContext.faultForGlobalID did NOT find an EO for that > global ID in that editing context. A few possibilities: > > - this StockItem is not one of the ones you have pre-loaded > - you pre-loaded them in a different editing context > - something told the EC to forgetObject() after you pre-loaded them > > > Chuck > > > > On 2012-09-05, at 10:30 AM, John Pollard wrote: > >> There is a to-one from WebPage to StockItem and no other direct relationship >> to StockItem. >> >> On 5 Sep 2012, at 18:20, Chuck Hill wrote: >> >>> Is there a to-one from WebPage to StockItem? Or is it a to-many? >>> >>> Chuck >>> >>> >>> On 2012-09-05, at 10:01 AM, John Pollard wrote: >>> >>>> Hi Chuck, >>>> The count is actually of the WebPage.childWebPages() array not on >>>> stockItems at all which is why I was puzzled that a >>>> StockItem.turnIntoFault() was being triggered. >>>> I confirmed that they are all in the same EC by logging the hashCode() of >>>> the EC (I assume that is valid) >>>> Thanks for your reply >>>> John >>>> >>>> On 5 Sep 2012, at 17:48, Chuck Hill wrote: >>>> >>>>> Hi John, >>>>> >>>>> Are StockItems "carefully pre-loaded" into the same EC as WebPages? If >>>>> not, you are likely running into the EC's fetch timestamp lag. It looks >>>>> like you are doing a count of StockItem at at >>>>> mp.eo.WebPage.getDescendantWebPages(WebPage.java:1410) and this is >>>>> causing the to-many to be faulted. >>>>> >>>>> >>>>> Chuck >>>>> >>>>> >>>>> >>>>> On 2012-09-05, at 9:21 AM, John Pollard wrote: >>>>> >>>>>> Hi WO list, >>>>>> >>>>>> The firing of a fault on EOs of one type is causing EOs of another type >>>>>> be turned into faults... is that expected? >>>>>> >>>>>> I have a WebPage eo with a to-many relationship called childWebPages >>>>>> (returns an array of WebPage objects) >>>>>> >>>>>> When I access this array recursively in getDescendantWebPages()...see >>>>>> stack trace below, a totally different class of object is turned into a >>>>>> fault StockItem, see top line of stack trace. >>>>>> >>>>>> I don't want EOF to turn my carefully pre-loaded StockItems back into >>>>>> faults! >>>>>> >>>>>> The two EOs are related via a join table. >>>>>> >>>>>> This is causing performance headaches. >>>>>> >>>>>> at mp.eo.StockItem.turnIntoFault(StockItem.java:1714) >>>>>> at >>>>>> com.webobjects.eocontrol.EOFaultHandler.makeObjectIntoFault(EOFaultHandler.java:161) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext._turnToFaultGidEditingContextIsComplete(EODatabaseContext.java:3363) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext.faultForGlobalID(EODatabaseContext.java:3397) >>>>>> at >>>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.faultForGlobalID(EOObjectStoreCoordinator.java:537) >>>>>> at >>>>>> com.webobjects.eocontrol.EOEditingContext.faultForGlobalID(EOEditingContext.java:3608) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext._objectFaultWithSnapshotRelationshipEditingContext(EODatabaseContext.java:2361) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2401) >>>>>> at >>>>>> com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) >>>>>> at >>>>>> com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) >>>>>> at >>>>>> com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) >>>>>> at >>>>>> com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext.databaseOperationForObject(EODatabaseContext.java:4810) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext.valuesForKeys(EODatabaseContext.java:6531) >>>>>> at >>>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.valuesForKeys(EOObjectStoreCoordinator.java:321) >>>>>> at >>>>>> com.webobjects.eoaccess.EOQualifierSQLGeneration$_KeyValueQualifierSupport.schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:439) >>>>>> at >>>>>> com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._schemaBasedQualifierWithRootEntity(EOQualifierSQLGeneration.java:179) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecification(EODatabaseChannel.java:227) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecificationEditingContext(EODatabaseContext.java:3055) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification(EODatabaseContext.java:3195) >>>>>> at >>>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecification(EOObjectStoreCoordinator.java:483) >>>>>> at >>>>>> com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4053) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext.objectsForSourceGlobalID(EODatabaseContext.java:4084) >>>>>> at >>>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsForSourceGlobalID(EOObjectStoreCoordinator.java:629) >>>>>> at >>>>>> com.webobjects.eocontrol.EOEditingContext.objectsForSourceGlobalID(EOEditingContext.java:3907) >>>>>> at >>>>>> com.webobjects.eoaccess.EODatabaseContext._fireArrayFault(EODatabaseContext.java:4245) >>>>>> at >>>>>> com.webobjects.eoaccess.EOAccessArrayFaultHandler.completeInitializationOfObject(EOAccessArrayFaultHandler.java:77) >>>>>> at >>>>>> com.webobjects.eocontrol._EOCheapCopyMutableArray.willRead(_EOCheapCopyMutableArray.java:45) >>>>>> at >>>>>> com.webobjects.eocontrol._EOCheapCopyMutableArray.count(_EOCheapCopyMutableArray.java:103) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1410) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1393) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1414) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1393) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1414) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1393) >>>>>> at mp.eo.WebPage.getDescendantWebPages(WebPage.java:1414) >>>>>> at mp.eo.WebSite.getAllWebPages(WebSite.java:842) >>>>>> at mpMall.DirectAction.getWebPageById(DirectAction.java:1982) >>>>>> at mpMall.DirectAction.viewPageAction(DirectAction.java:537) >>>>>> >>>>>> Many thanks, >>>>>> John >>>>>> _______________________________________________ >>>>>> 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/chill%40global-village.net >>>>>> >>>>>> This email sent to [email protected] >>>>> >>>>> -- >>>>> 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. >>>>> http://www.global-village.net/gvc/practical_webobjects >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> 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/chill%40global-village.net >>>> >>>> This email sent to [email protected] >>> >>> -- >>> 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. >>> http://www.global-village.net/gvc/practical_webobjects >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> _______________________________________________ >> 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/chill%40global-village.net >> >> This email sent to [email protected] > > -- > 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. > http://www.global-village.net/gvc/practical_webobjects > > > > > > > > _______________________________________________ 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]
