On Jul 29, 2007, at 8:35 PM, Lachlan Deck wrote:
Hi there,
On 28/07/2007, at 1:04 AM, Chuck Hill wrote:
No. Has your model changed and the Java not been regenerated?
Good suggestion.... double checking...
The only other thing I can think of is a bad call to
takeValueForKey on this EO that is overwriting sessions() with
something else. Try overriding setSessions to log a stack trace if
the value is not instanceof NSArray.
The issue seems to be the current value of sessions() rather than
the value being taken. i.e., null is neither an instance of either
NSArray or NSMutableArray...
Are you sure it is null? If it is null, you may have forgotten to
call super in awakeFromInsertion or awakeFromFetch. Or see my guess
further down.
Actually I'm now seeing a number of these errors... what's the
usual cause for 'no database snapshot available'?
You mucking with EOF's head. :-) Or perhaps a reference counting
bug in EOF, but I rater doubt that in 2007.
I've seen it at other times also.
java.lang.IllegalStateException: There is no database snapshot
available for the object {values = {<....>; entityType =
"CourseClass"; this =
"<ish.willowservices.soap.eoaccess.CourseClass 1117cc0
_EOIntegralKeyGlobalID[CourseClass (java.lang.Long)928]>"; } with
GlobalID _EOIntegralKeyGlobalID[CourseClass (java.lang.Long)928]
Here it is complaining that it can't find a CourseClass...
at
com.webobjects.eoaccess.EODatabaseContext.objectsForSourceGlobalID
(EODatabaseContext.java:4205)
at
com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsForSourceGlob
alID(EOObjectStoreCoordinator.java:682)
at
com.webobjects.eocontrol.EOEditingContext.objectsForSourceGlobalID
(EOEditingContext.java:3904)
at
com.webobjects.eocontrol.EOEditingContext.objectsForSourceGlobalID
(EOEditingContext.java:3904)
at com.webobjects.eoaccess.EODatabaseContext._fireArrayFault
(EODatabaseContext.java:4418)
at
com.webobjects.eoaccess.EOAccessArrayFaultHandler.completeInitializati
onOfObject(EOAccessArrayFaultHandler.java:70)
at
com.webobjects.eocontrol._EOCheapCopyMutableArray.willRead
(_EOCheapCopyMutableArray.java:38)
at com.webobjects.eocontrol._EOCheapCopyMutableArray.count
(_EOCheapCopyMutableArray.java:92)
at com.webobjects.foundation.NSArray.containsObject
(NSArray.java:601)
at
com.ish.webobjects.eocontrol.ISHGenericRecord.excludeObjectFromPropert
yWithKey(ISHGenericRecord.java:75)
at
com.ish.willow.eoaccess.model._CourseClass.removeFromSessions
(_CourseClass.java:560)
And here it seems to be firing an array fault of
courseClass.sessions. Is sessions() an array of CourseClass?
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.webobjects.foundation.NSSelector._safeInvokeMethod
(NSSelector.java:120)
at
com.webobjects.eocontrol.EOCustomObject.removeObjectFromPropertyWithKe
y(EOCustomObject.java:1011)
at
com.webobjects.eocontrol.EOCustomObject.addObjectToBothSidesOfRelation
shipWithKey(EOCustomObject.java:1066)
The other possibility that I'll need to check out is whether this
is another /feature/ of vertical inheritance (as its reverse
relationship is mandatory from the sub-entity).
Looking at this, my suspicion is that you have messed up the
restricting qualifiers on the entities (or something) and EOF is
getting confused about which class an entity is for. That also ties
into the error below. If you call sessions() on an CourseClass object
that EOF thinks is some other Entity, it probably did not put a value
for sessions in its dictionary, thus it would be null. Try printing
out the entityName() when sessions() == null and see what EOF says.
Also log out the global ID.
And yes, it could be something related to vertical inheritance. I
hope your use of VI is mandated by a legacy schema. Otherwise you
are causing yourself all sort of pain.
Chuck
On Jul 27, 2007, at 12:43 AM, Lachlan Deck wrote:
anyone seen something similar to the below before?
java.lang.IllegalArgumentException:
removeObjectToPropertyWithKey: the key sessions is not a Array or
one of its subclasses - unable to remove the value.
at
com.webobjects.eocontrol.EOCustomObject.excludeObjectFromPropertyWit
hKey(EOCustomObject.java:987)
at
com.ish.willow.eoaccess.model._CourseClass.removeFromSessions
(_CourseClass.java:560)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.webobjects.foundation.NSSelector._safeInvokeMethod
(NSSelector.java:120)
at
com.webobjects.eocontrol.EOCustomObject.removeObjectFromPropertyWith
Key(EOCustomObject.java:1011)
at
com.webobjects.eocontrol.EOCustomObject.addObjectToBothSidesOfRelati
onshipWithKey(EOCustomObject.java:1066)
with regards,
--
Lachlan Deck
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/chill%
40global-village.net
This email sent to [EMAIL PROTECTED]
--
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/products/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:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
