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Re: null pointer question on flattened relationship
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Re: null pointer question on flattened relationship


  • Subject: Re: null pointer question on flattened relationship
  • From: James Cicenia <email@hidden>
  • Date: Wed, 13 Feb 2013 19:36:13 -0600

it was originally a many-to-many with a flattened relationship.

I couldn't even check for that via the flattened attribute... would just balk up an NPE.

anyway I have moved on.

On Feb 13, 2013, at 6:58 PM, David Avendasora <email@hidden> wrote:

> A to-many relationship should never give you null in the first place. To-manys always return an empty array.
>
> There must something wrong with the flattened relationship. What is the name of the join Entity and it's relationships?
>
> Dave
>
> On Feb 14, 2013, at 8:18 AM, James Cicenia <email@hidden> wrote:
>
>>
>> No... it just throws the exception to the console which it shouldn't.
>>
>> even if I do a test of if(user.services == null)  it still gives me this dump.
>>
>> I have never seen this behavior before. It is a flattened many to many.
>>
>> Thanks
>> James
>>
>>
>> On Feb 13, 2013, at 5:54 PM, Chuck Hill <email@hidden> wrote:
>>
>>> Unresolved compilation error?  Picking up some other User class?
>>>
>>> Crashes how?  JVM exits?  Machine reboots?
>>>
>>>
>>> On 2013-02-13, at 2:31 PM, James Cicenia wrote:
>>>
>>>> Hello -
>>>>
>>>> I notice that if I do this:
>>>>
>>>> System.out.println("services is "+user.services());
>>>>
>>>> it doesn't print,,, it just crashes?
>>>> And yes user exists.
>>>>
>>>> thanks
>>>>
>>>> java.lang.reflect.InvocationTargetException
>>>> 	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:597)
>>>> 	at er.rest.routes.ERXRouteController.performActionWithArguments(ERXRouteController.java:1559)
>>>> 	at com.pp.rest.controllers.BaseRestController.performActionWithArguments(BaseRestController.java:84)
>>>> 	at er.rest.routes.ERXRouteController.performRouteActionNamed(ERXRouteController.java:1510)
>>>> 	at er.rest.routes.ERXRouteController.performActionNamed(ERXRouteController.java:1385)
>>>> 	at er.rest.routes.ERXRouteController.performActionNamed(ERXRouteController.java:1328)
>>>> 	at com.webobjects.appserver._private.WOActionRequestHandler._handleRequest(WOActionRequestHandler.java:259)
>>>> 	at com.webobjects.appserver._private.WOActionRequestHandler.handleRequest(WOActionRequestHandler.java:161)
>>>> 	at com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687)
>>>> 	at er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:2139)
>>>> 	at er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:2104)
>>>> 	at com.pp.app.Application.dispatchRequest(Application.java:99)
>>>> 	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:680)
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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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>>
>>
>> _______________________________________________
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>
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> —————————————————————————————
> David Avendasora
> Senior Software Abuser
> Kaiten, Inc.
>
>
>
>


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References: 
 >null pointer question on flattened relationship (From: James Cicenia <email@hidden>)
 >Re: null pointer question on flattened relationship (From: Chuck Hill <email@hidden>)
 >Re: null pointer question on flattened relationship (From: James Cicenia <email@hidden>)
 >Re: null pointer question on flattened relationship (From: David Avendasora <email@hidden>)

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