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eclipselink history policy: history records with null id [message #1725608]

Fri, 04 March 2016 20:53

Iva Conte

Messages: 3
Registered: February 2016

Junior Member

I'm trying to use Eclipselink History Policy according to the following example: https://wiki.eclipse.org/EclipseLink/Examples/JPA/History

However, in my case the updates/deletes are not being saved as expected, id field is saved as null as follows:

1)insertion

EMP_ID FIRSTNAME LASTNAME SALARY ADDRESS_ID START_DATE END_DATE
1 Bob Way 55000 6 2010-06-10-12:00 null

2) update

EMP_ID FIRSTNAME LASTNAME SALARY ADDRESS_ID START_DATE END_DATE
1 Bob Way 55000 6 2010-06- 10-12:00 2010-06-10-12:03
null Bob Way 50000 6 2010-06-10-12:03 null

3) deletion : nothing happens

I've used mysql and postgresql to perform this tests. My history table is not using any constraints or identity fields. Is this the right behavior of history feature? Is there something else to set up?

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