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Re: Prototypes and Inheritance
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Re: Prototypes and Inheritance


  • Subject: Re: Prototypes and Inheritance
  • From: Chuck Hill <email@hidden>
  • Date: Thu, 25 Aug 2005 16:51:13 -0700


On Aug 25, 2005, at 4:47 PM, Dev WO wrote:

The application starts with a loggin panel, I enter an email and a password which are in the database (from when the application was working) and got:
----
[2005-08-26 01:02:55 CEST] <WorkerThread1> java.lang.NullPointerException
at com.webobjects.eoaccess.EOAttribute.adaptorValueByConvertingAttribut eValue(EOAttribute.java:2020)


I'm pretty sure I saw that on one of these list just last week. I'm also pretty certain that something is missing from the model. Check that the column names, value types, value class, entity name, table name etc. are all still there. Adding prototypes after an entity has been created will erase some of the information.

I have try to set a fetch of all the user without arguments and print it to the log and I got a class cast exception...

Sounds like some model is not getting loaded at run time.

That make me think about something:
When I setup the prototypes framework, do I have to tell EOModeler that it's JDBC?? Because I selected "nothing" as of now.


No, that should be fine. It looks for EOJDBCPrototypes to find the prototypes for JDBC.

--
Practical WebObjects - a book for intermediate WebObjects developers who want to increase their overall knowledge of WebObjects, or those who are trying to solve specific application development problems.
http://www.global-village.net/products/practical_webobjects





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  • Follow-Ups:
    • Re: Prototypes and Inheritance
      • From: Dev WO <email@hidden>
References: 
 >Prototypes and Inheritance (From: Dev WO <email@hidden>)
 >Re: Prototypes and Inheritance (From: Chuck Hill <email@hidden>)
 >Re: Prototypes and Inheritance (From: Dev WO <email@hidden>)
 >Re: Prototypes and Inheritance (From: Chuck Hill <email@hidden>)
 >Re: Prototypes and Inheritance (From: Dev WO <email@hidden>)

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