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 10:20:05 -0700
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
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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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--
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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