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From: Andrus Adamchik <andrus@objectstyle.org>
Subject: Re: Cayenne does not throw an exception when an outer join is
 attempted
Date: Thu, 17 Aug 2006 09:46:28 -0400
To: cayenne-user@incubator.apache.org

> Would it make sense for Cayenne to throw an exception when an outer
> join is attempted?

Could you be more specific on when it should detect that? IIRC there =20
were some discussions on that in the past. You provide no references =20
though.

Also there is an effort underway to support outer joins (we will have =20=

to do it in 3.0 anyways as the goal is to be compatible with the JPA =20
spec that requires them):

http://objectstyle.org/cayenne/lists/cayenne-devel/2006/08/0106.html

Andrus

On Aug 17, 2006, at 3:24 AM, =D8yvind Harboe wrote:
> Outer joins are not supported, I know.
>
> Meanwhile I miss being *told* when I'm attempting an outer join,
> minimally runtime.
>
> One of the reasons I'm using Cayenne is that I don't want to think
> about SQL, so I don't. It hurts even thinking about thinking about how
> Cayenne Expressions turn into SQL statements :-)
>
> Would it make sense for Cayenne to throw an exception when an outer
> join is attempted?
>
> Could I attempt to implement such a detection in Cayenne myself and
> submit a patch or is it fiendishly difficult?
>
> --=20
> =D8yvind Harboe
> http://www.zylin.com
>