Re: default values

Nothing built into Cayenne. A few options - return defaults by overriding accessors for the properties at
hand. Or more low level - a custom org.apache.cayenne.access.jdbc.SelectAction that creates a wrapper
around the standard ResultIterator that would check each returned row and fill in the defaults. 

If you can think how to handle the later case in a generic fashion in Cayenne, we'd welcome a patch against 3.1 (trunk).

Andrus

On Jul 6, 2011, at 12:26 PM, Hans Pikkemaat wrote:

> PS: I'm using cayenne 2.0.4
> 
> On 6/7/11 11:20 AM, Hans Pikkemaat wrote:
>> Hi,
>> 
>> I'm using a legacy database with old data. There are null values in fields which have a specific meaning.
>> The legacy systems handle this in the code. In my new code I do not want to add such hardcoded handling.
>> 
>> I cannot update the fields because it will break old systems.
>> 
>> My question: is there a generic mechanism where I can tell cayenne to provide default values for fields which
>> have null values when I'm running queries.
>> 
>> tx
>> 
>> Hans
>> 
> 
>