How do we put an object in coherence cache when the pk is using @TableGener

Question

Hi,
I am trying to create a sample application using Spring, JPA, Eclipselink, Coherence. I am trying to insert objects into cache and then expecting it to persist into database asynchronously. The issue is we are using @TableGenerator to generate pk. I dont have the primary key before hand to use it to put the object into the cache.
Ex: cache.put(???, object);
What is the best approach in such scenarios. Can anyone point me to an example?
Thanks.

Answer 1

user12107940 wrote:
The above article helps but we can't change the current architecture of generating the primary key i.e., TableGenerator. We have other non-java processes that update the database. Is there any other way to use jpa-eclipselink to know the pk before persisting the object.In this case you have to ensure that anything which comes via Coherence gets ids from a set of possible ids which is distinct from the set of possible ids generated in the database, but it is technically impossible to put something in a cache without an id already generated if the id is part of the primary key (and you want it to be).
E.g. whatever generates ids in the database must only generate odd numbers for ids (e.g. a sequence which increases not with one but with two), and whatever goes via JPA/EclipseLink must only generate even numbers.
Best regards,
Robert