Re: Why are my EOs turning back to faults?
Re: Why are my EOs turning back to faults?
- Subject: Re: Why are my EOs turning back to faults?
- From: Chuck Hill <email@hidden>
- Date: Wed, 05 Sep 2012 09:59:49 -0700
Hi John,
On 2012-09-05, at 9:47 AM, John Pollard wrote:
> Update: Although it would be interesting to know the answer to the below, it doesn't explain the problem I am trying to crack.
> I have relationships StockItem.webPages() that are fired, report back as NOT being faults as expected, but then later have reverted to being faults and I don't know where or how they became faults. I put a stack trace in StockItem.turnIntoFault() in case the base object is being turned into a fault, but it isn't (at least not repeatedly), only the relationship is. Can I somehow trap the point at which a relationship is being reverted to a fault?
Not easily. See clearSnapshotForRelationshipNamed in ERXEOControlUtilities.
Is Inheritance involved here? If so, what are the details?
Chuck
> On 5 Sep 2012, at 17:21, 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
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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.
http://www.global-village.net/gvc/practical_webobjects
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