camel-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Chris Wolf <>
Subject Re: How to do conditional entity persistence in JPA Consumer
Date Mon, 21 Jan 2013 19:56:07 GMT
Hello Christian,

So forget about the "jpa:" endpoint and just do the persistence and
conditional logic, including
getting the EntityManager within the bean?



On Mon, Jan 21, 2013 at 1:42 PM, Christian Müller
<> 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" <>:
>> 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

View raw message