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From "Matthieu Riou" <>
Subject Re: Using _attributes
Date Mon, 15 Jan 2007 17:04:17 GMT
I see. I specifically had problems with relation tables though. I had
columns generated as _attribute_OTHERTABLENAME and the first _ didn't make
it through Derby. Hence the necessary usage of @ElementJoinColumn.

Are these mandated by the spec as well?

On 1/15/07, Abe White <> wrote:
> > I think it could be nicer and a bit easier if OpenJPA was
> > automatically
> > eliminating the first _ from attribute names to build its default
> > coumn
> > names, don't you think?
> The default column names are mandated by the JPA specification.  And
> unless you're using OpenJPA-specific mappings, you shouldn't have to
> use OpenJPA-specific annotations just to rename columns.  The JPA
> spec includes standard annotations for naming the columns in all
> standard mappings.
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