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Re: Null property exceptions
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Re: Null property exceptions

  • Subject: Re: Null property exceptions
  • From: Jeff Schmitz <email@hidden>
  • Date: Mon, 2 Jun 2008 21:58:11 -0700
No, I don't think I have an foreign keys exposed. If they were, they'd have the little diamond by them, right?

JPEG image



On Jun 2, 2008, at 9:46 PM, Chuck Hill wrote:


On Jun 2, 2008, at 9:42 PM, Jeff Schmitz wrote:

thanks!
You're exactly right, that relationship is an owns destination relationship. I changed the code to set the properties on the existing entryScore instead of creating a new one:

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);
entry.entryScore().setNumSecs(0);
entry.entryScore().setNumThirds(0);
entry.entryScore().setNumWins(0);
entry.entryScore().setPlace(0);
entry.entryScore().setPoints(0);
entry.entryScore().setPotential(0);
ec.saveChanges();

but now I'm getting a different validation error. There's probably still something I don't have setup right for using the "propagates primary key" and "owns destination" options for this relationship, but I'm not sure what it is. It's interesting that the below INSERT passes in a NULL value for the entryScoreID. If it automatically creates its own entryScore object, shouldn't it be sending in the ID of that object instead of NULL?

Well, uh, how do you have it set? Do you have any foreign key exposed as a class property? If so, don't! You can make the PK a class property (not saying this a good idea, just that it won't cause errors), but exposing an FK will cause this sort of error.


Chuck

com.webobjects.eoaccess.EOGeneralAdaptorException: EvaluateExpression failed: <com.webobjects.jdbcadaptor.FrontbasePlugIn$FrontbaseExpression: "INSERT INTO "t_entry"("c_still_alive_first", "c_games", "c_still_alive_third", "spare_int", "userID", "id", "c_name", "c_picks_confirmed", "spare_bool", "c_last_save", "c_groups", "entryScoreID", "poolID", "entryAdminID", "c_still_alive_second", "spare_str", "c_password", "c_tie_breaker") VALUES ('false', 15, 'false', 0, 1000001, 1000001, 'DEFAULT', 'true', 'false', TIMESTAMP '2008-06-02 21:32:13.802', 4, NULL, 1000001, NULL, 'false', '', 'pw', 0)" withBindings: >:
Next exception:SQL State:23 subclass = 00 -- error code: 357 -- msg: Exception condition 357. Integrity constraint violation (CHECK, t_entry.NOT_NULL_t_entry__entryScoreID(\"entryScoreID\" IS NOT NULL)).

Thanks,
Jeff


On Jun 2, 2008, at 12:49 AM, Johann Werner wrote:

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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  • Follow-Ups:
    • Re: Null property exceptions
      • From: Alexander Spohr <email@hidden>
    • Re: Null property exceptions
      • From: Johann Werner <email@hidden>
References: 
 >Null property exceptions (From: Jeff Schmitz <email@hidden>)
 >Re: Null property exceptions (From: Johann Werner <email@hidden>)
 >Re: Null property exceptions (From: Jeff Schmitz <email@hidden>)
 >Re: Null property exceptions (From: Chuck Hill <email@hidden>)

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