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Re: Null property exceptions
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Re: Null property exceptions

  • Subject: Re: Null property exceptions
  • From: Johann Werner <email@hidden>
  • Date: Mon, 2 Jun 2008 09:49:57 +0200
Hi Jeff,

what is your entryScore relationship like? Do you have "owns destination" checked? If yes then by creating an Entry object EOF does create an EntryScore object for you automatically. So when you save changes that object is still in the editing context but no attributes have been set and thus throwing NullPropertyExceptions for every attribute that does not allow Null.

jw


Am 02.06.2008 um 04:35 schrieb Jeff Schmitz:

Hello,
I can't get past NullPropertyException's when I try to save changes to my editing context. I have an object, pool, that I add an entry to with the Entry.createEntry operation. Then, in turn, I add an EntryScore obejct to the entry object. Note that the entryScore relationship in Entry (the one causing the problems) is set to "propagate primary key". I have tried making it both mandatory and optional with the same results. Any ideas what may be causing this?

Here's the basic code:

EOQualifier poolQual = Pool.NAME.eq(name);
pool = Pool.fetchRequiredPool(ec, poolQual);
entry = Entry.createEntry(ec, "DEFAULT", "pw", true, false, new Integer(0), "", false, false, false, new Integer(0), pool, user);
EntryScore es = EntryScore.createEntryScore(ec, 0, 0, 0, 0, 0, 0);
entry.setEntryScore(es);
ec.saveChanges();

exception (on the SaveChanges line):

Jun 01 21:19:54 netBrackets[64375] (ERXNSLogLog4jBridge.java:41) WARN NSLog - <com.webobjects.appserver._private.WOComponentRequestHandler>: Exception occurred while handling request:
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numSecs; type: NullPropertyException; additionalExceptions: ( <er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numThirds; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numWins; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: place; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: points; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: potential; type: NullPropertyException; additionalExceptions: ( )> )>
[2008-6-2 3:19:54 CDT] <WorkerThread0> <er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numSecs; type: NullPropertyException; additionalExceptions: ( <er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numThirds; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: numWins; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: place; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: points; type: NullPropertyException; additionalExceptions: ( )>,
<er.extensions.ERXValidationException object: <com.netbracketsfw.model.EntryScore pk:"null">; propertyKey: potential; type: NullPropertyException; additionalExceptions: ( )> )>
at com.webobjects.eoaccess.EOAttribute.validateValue(EOAttribute.java: 2541)
at com .webobjects .eoaccess .EOEntityClassDescription .validateValueForKey(EOEntityClassDescription.java:452)
at er .extensions .ERXEntityClassDescription .validateValueForKey(ERXEntityClassDescription.java:796)
at com .webobjects .eocontrol.EOCustomObject.validateValueForKey(EOCustomObject.java: 1311)
at er .extensions .ERXGenericRecord.validateValueForKey(ERXGenericRecord.java:1063)
at com .webobjects .eocontrol.EOCustomObject.validateForSave(EOCustomObject.java:1381)
at er.extensions.ERXGenericRecord.validateForSave(ERXGenericRecord.java: 1109)
at com .webobjects .eocontrol.EOCustomObject.validateForInsert(EOCustomObject.java:1433)
at er .extensions.ERXGenericRecord.validateForInsert(ERXGenericRecord.java: 1132)
at com .webobjects .eocontrol.EOEditingContext.validateTable(EOEditingContext.java:2265)
at com .webobjects .eocontrol .EOEditingContext.validateChangesForSave(EOEditingContext.java:2991)
at com .webobjects .eocontrol .EOEditingContext._prepareForPushChanges(EOEditingContext.java:3233)
at com .webobjects .eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3163)
at er.extensions.ERXEC._saveChanges(ERXEC.java:937)
at er.extensions.ERXEC.saveChanges(ERXEC.java:860)

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