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From Michael Gentry <mgen...@masslight.net>
Subject Re: Can default values be set in Constructor instead of setPersistenceState()?
Date Fri, 27 Jul 2012 15:15:12 GMT
Hi Kanwar,

Why are you checking for null?  Just set the PK.

mrg


On Fri, Jul 27, 2012 at 4:19 AM, KM <kanwarmanish@gmail.com> wrote:
> I am using Cayenne 3.1B1.
>
> Overriding onPostAdd is not working. I have added the callback in the
> modeller added the code below
>
>     @Override
>     protected void onPostAdd()
>     {
>         if (getObjectId() == null)
>         {
>         setLogicalFolderId(UUID.randomUUID().toString());
>         }
>     }
>
> Basically - trying to initialize the Primary Key - but this is not working.
> When adding multiple related objects - id's of the objects obtained through
> - context.newObject() are not having any id.
>
> Can you point me - what am I doing wrong here?
>
> Thanks
> Kanwar Manish
>
>
> Michael Gentry-2 wrote
>>
>> Hi Joel,
>>
>> What version of Cayenne are you using?  If 3.0, you'll probably want
>> to use a callback.  If 2.0, use setPersistenceState.  For 3.0, you'd
>> be interested in the PostAdd callback:
>>
>> http://cayenne.apache.org/doc30/lifecycle-callbacks.html
>>
>> Configure the callback in Cayenne Modeler with a name such as
>> "onPostAdd" and then in your Java:
>>
>>   @Override
>>   protected void onPostAdd()
>>   {
>>       ...
>>   }
>>
>> mrg
>>
>>
>>
>> On Thu, Sep 8, 2011 at 11:03 AM, Becker, Joel &lt;joel.becker@&gt; wrote:
>>>
>>>
>>> https://cwiki.apache.org/CAY/setting-initial-values.html says "the best
>>> place to set default/initial values in the newly created object is in
>>> the setPersistenceState". Is there a problem with setting the default
>>> values in a default constructor (following java general best practices)?
>>>
>>>
>>
>
>
>
>
> --
> View this message in context: http://cayenne.195.n3.nabble.com/Can-default-values-be-set-in-Constructor-instead-of-setPersistenceState-tp3320047p4024463.html
> Sent from the Cayenne - User mailing list archive at Nabble.com.

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