Hello,
I'm sure this problem comes down to me not fully groking the JPA way:
Using OpenJPA (2.0.1), how do I get a call to persist() to automatically
populate non-nullable, non-key fields whose values are generated by the
database? Here are the particulars:
DDL:
modified timestamp not null default current_timestamp,
Entity:
@Temporal (TemporalType.TIMESTAMP)
@Column (insertable=false, updatable=false)
private Calendar modified;
Relevant JPA Property:
openjpa.AutoDetach=close,commit,nontx-read
Databases:
PostgreSQL 8.4, Derby 10.8
Test (which fails):
...{set fields, but not 'modified'}...
et = em.getTransaction();
et.begin();
em.persist(entity);
et.commit();
assertNotNull(entity.getModified());
A query on the table, of course, shows a value for modified.
Some things I've tried that haven't worked:
* Immediately after persist, entity.getModified();
* Immediately after persist, em.refresh(entity);
On a possibly related note, I'm puzzled as to why I'm seeing the
following message when I run my tests despite the fact that I'm running
the enhancer on my domain classes via the openjpa-maven-plugin
(codehaus):
INFO [main] openjpa.Enhance - You have enabled runtime
enhancement, but have not specified the set of persistent
classes. ...
I've inspected the .class file and it has a pcGetmodified among other
things. So it looks like the classes are indeed getting enhanced.
Any insights? Do I need a post processor to populate 'modified'?
