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From Christian Müller <christian.muel...@gmail.com>
Subject Re: How to do conditional entity persistence in JPA Consumer
Date Mon, 21 Jan 2013 21:55:58 GMT
Yes. You can set up your EntityManager using Spring/Blueprint and inject it
into your bean. In your bean you can use the EntityManager to
query/update/create entities.
IMO, it's simpler to do it in this way instead of modeling a Camel route
which query the database first, use a CBR to route the message and
update/create an entity.

Best,
Christian

On Mon, Jan 21, 2013 at 8:56 PM, Chris Wolf <cwolf.algo@gmail.com> wrote:

> Hello Christian,
>
> So forget about the "jpa:" endpoint and just do the persistence and
> conditional logic, including
> getting the EntityManager within the bean?
>
> Thanks,
>
>     -Chris
>
> On Mon, Jan 21, 2013 at 1:42 PM, Christian Müller
> <christian.mueller@gmail.com> wrote:
> > I would do this all together in a single bean...
> >
> > Best,
> > Christian
> >
> > Sent from a mobile device
> > Am 21.01.2013 18:12 schrieb "Chris Wolf" <cwolf.algo@gmail.com>:
> >
> >> I recently changed a schema to be more normalized by factoring out a
> >> column of type varchar2 that takes one of only a few dozen, but long
> >> values,
> >> so I created a lookup table for these strings and replaced the
> >> sting-valued column in the main entity with a foreign-key valued
> >> column, referencing
> >> the lookup table.
> >>
> >> So now when I persist the main entity, I need to perform a lookup in
> >> the string lookup table and only create a new lookup entity if there's
> >> no entry, otherwise
> >> set the main entity's lookup ref to the PK of the found, matched
> >> string.  How can I do this in the jpa producer without introducing
> >> EntityManager/Query code
> >> in the entity or some pre-processing bean?
> >>
> >> Thanks,
> >>
> >>
> >> Chris
> >>
>



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