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From Aristedes Maniatis <>
Subject Re: Coming from EOF: Cayenne vs Hibernate
Date Wed, 11 Mar 2009 23:18:01 GMT

On 12/03/2009, at 9:04 AM, Francisco Peredo wrote:

> Hi!I really wonder why nobody has built something like Cayenne on  
> top of JPA,
> I mean, it should be clear that Cayenne is higher level API that  
> offers a
> lot of advantages..

Andrus has already spent a vast amount of time on moving Cayenne  
toward JPA compliance. It is not a goal for 3.0 because other more  
important issues are being addressed first. Even though quite a lot of  
JPA already works, as you know with the JSR process, you can't be  
'almost compliant'. Cayenne will only be able to be advertised as JPA  
compliant when all the tests pass.

As for inheritance, Cayenne already supports single table inheritance  
and vertical/horizontal are probably only some months away.

Finally, don't be scared by the 3.0M6 naming. It is certainly stable  
enough to be used in production, however there is no guarantee that  
the API is finalised. So if you use the milestone you may need to  
alter your code slightly for the next milestone.


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