Re: NullPointerException in DerbyPlugIn$DerbyExpression.isLOBAttribute
Re: NullPointerException in DerbyPlugIn$DerbyExpression.isLOBAttribute
- Subject: Re: NullPointerException in DerbyPlugIn$DerbyExpression.isLOBAttribute
- From: Chuck Hill <email@hidden>
- Date: Sat, 4 Sep 2010 16:57:57 -0400
On Sep 4, 2010, at 11:12 AM, Mike Schrag wrote:
> No way apple's soca teach prototypes, right? I seem to recall those soca only teach bad practices.
Yeah, the apple soca fwe narki in places. er, whatever.
> Sent from my iPhone
Apparently. :-P
I missed the Apple reference, only the Wiki link sunk in. Didn't someone make proper directions?
http://wiki.objectstyle.org/confluence/display/WO/Home
http://www.wocommunity.org/
Hmmm, guess not.
Chuck
> On Sep 4, 2010, at 10:46 AM, Chuck Hill <email@hidden> wrote:
>
>> Or the prototypes are not configured or not loading properly?
>>
>>
>> On Sep 4, 2010, at 10:40 AM, Mike Schrag wrote:
>>
>>> I don't have source in front of me at the moment, but I seem to recall this is when you accidentally forget to fill in the external type of an attribute (the "varchar" part). Go back through the attributes in your model and give then a once-over. I should really add a check to entity modeler for JDBC attributes with missing required values.
>>>
>>> Sent from my iPhone
>>>
>>> On Sep 4, 2010, at 4:58 AM, Marvin <email@hidden> wrote:
>>>
>>>> Hi,
>>>>
>>>> I am new to WebObjects and am working through the documentation and Apple's Movies tutorial found here: http://developer.apple.com/legacy/mac/library/documentation/DeveloperTools/Conceptual/WOTutorial/DatabaseApplication/DatabaseApplication.html.
>>>>
>>>> I am running on Mac OS 10.6.4.
>>>>
>>>> I was able to get WebObects installed (version 5.4.3) along with the WOLips plugin for eclipse obtained from: http://wiki.objectstyle.org/confluence/display/WOL/Installing+WOLips. I installed it using method 2.
>>>>
>>>> I am using the built in VelocityEOGenerator with the Entity.java templates obtained from: http://wiki.objectstyle.org/confluence/display/WOL/EOGenerator+Templates+and+Additions.
>>>>
>>>> I have created the Movies database and have generated the Movies entities using the EO Generator and can launch the application but when I do a search as instructed in the tutorial I get the following exception. I have searched this mailing list archive and the web for elements of this error but have not had any luck Does anyone have any idea what is going wrong?
>>>>
>>>> Thanks for the help.
>>>>
>>>> Marvin
>>>>
>>>>
>>>> [2010-9-4 4:3:15 EDT] <main> Waiting for requests...
>>>> java.lang.NullPointerException
>>>> at com.webobjects.jdbcadaptor.DerbyPlugIn$DerbyExpression.isLOBAttribute(DerbyPlugIn.java:345)
>>>> at com.webobjects.jdbcadaptor.DerbyPlugIn$DerbyExpression.shouldUseBindVariableForAttribute(DerbyPlugIn.java:361)
>>>> at com.webobjects.eoaccess.EOSQLExpression.sqlStringForValue(EOSQLExpression.java:1965)
>>>> at com.webobjects.eoaccess.EOSQLExpression.sqlStringForKeyValueQualifier(EOSQLExpression.java:1659)
>>>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_KeyValueQualifierSupport.sqlStringForSQLExpression(EOQualifierSQLGeneration.java:463)
>>>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._sqlStringForSQLExpression(EOQualifierSQLGeneration.java:165)
>>>> at com.webobjects.eoaccess.EOSQLExpression.sqlStringForArrayOfQualifiers(EOSQLExpression.java:1528)
>>>> at com.webobjects.eoaccess.EOSQLExpression.sqlStringForConjoinedQualifiers(EOSQLExpression.java:1560)
>>>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$_AndQualifierSupport.sqlStringForSQLExpression(EOQualifierSQLGeneration.java:541)
>>>> at com.webobjects.eoaccess.EOQualifierSQLGeneration$Support._sqlStringForSQLExpression(EOQualifierSQLGeneration.java:165)
>>>> at com.webobjects.eoaccess.EOSQLExpression.prepareSelectExpressionWithAttributes(EOSQLExpression.java:997)
>>>> at com.webobjects.jdbcadaptor.JDBCExpression.prepareSelectExpressionWithAttributes(JDBCExpression.java:146)
>>>> at com.webobjects.eoaccess.EOSQLExpressionFactory.selectStatementForAttributes(EOSQLExpressionFactory.java:225)
>>>> at com.webobjects.jdbcadaptor.JDBCChannel.selectAttributes(JDBCChannel.java:213)
>>>> at com.webobjects.eoaccess.EODatabaseChannel._selectWithFetchSpecificationEditingContext(EODatabaseChannel.java:897)
>>>> at com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecification(EODatabaseChannel.java:234)
>>>> at com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecificationEditingContext(EODatabaseContext.java:3055)
>>>> at com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification(EODatabaseContext.java:3195)
>>>> at com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecification(EOObjectStoreCoordinator.java:488)
>>>> at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4069)
>>>> at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4444)
>>>> at your.app.eo._Movie.fetchMovies(_Movie.java:84)
>>>> at your.app.components.Main.searchMovies(Main.java:75)
>>>> at sunreflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>> at java.lang.reflect.Method.invoke(Method.java:597)
>>>> at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(NSKeyValueCoding.java:636)
>>>> at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134)
>>>> at com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324)
>>>> at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736)
>>>> at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447)
>>>> at com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212)
>>>> at com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804)
>>>> at com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50)
>>>> at com.webobjects.appserver._private.WOSubmitButton.invokeAction(WOSubmitButton.java:81)
>>>> at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105)
>>>> at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115)
>>>> at com.webobjects.appserver._private.WOForm.invokeAction(WOForm.java:141)
>>>> at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105)
>>>> at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115)
>>>> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079)
>>>> at com.webobjects.appserver.WOSession.invokeAction(WOSession.java:1357)
>>>> at com.webobjects.appserver.WOApplication.invokeAction(WOApplication.java:1745)
>>>> at com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedPage(WOComponentRequestHandler.java:206)
>>>> at com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedSession(WOComponentRequestHandler.java:298)
>>>> at com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332)
>>>> at comwebobjects.appserver._private.WOComponentRequestHandler._handleRequest(WOComponentRequestHandler.java:369)
>>>> at com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(WOComponentRequestHandler.java:442)
>>>> at com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687)
>>>> at com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
>>>> at com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226)
>>>> at java.lang.Thread.run(Thread.java:637)
>>>>
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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/products/practical_webobjects
>>
>>
>>
>>
>>
>>
>>
--
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/products/practical_webobjects
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