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Re: [eclipselink-users] Creating a Table and add initinial values.
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As mentioned below, there is not direct way to do that in JPA, but if you are
doing this for testing, many test frameworks provide some kind of a mechanism.
If you are not testing, JPA provides a set of of Events you can set up listeners
to and EclipseLink provides even more. One way you could do this is, or
instance, to set up a listener to EclipseLink's postLogin event and then run
some code in that event to do the prepopulation.
To use the EclipseLink-specific events, you will have to register a listener in
a session customizer. See the section on: "eclipselink.session.customizer" here:
http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#Using_EclipseLink_JPA_Extensions_for_Customization_and_Optimization
Documentation about our customizers can be found here:
http://wiki.eclipse.org/Introduction_to_EclipseLink_Sessions_%28ELUG%29#Session_Customization
-Tom
cinhtau wrote:
Leandro Costa-3 wrote:
Hi guys, I was wondering if it's possible to add some pre-defined
values to a table when the jpa create it. E.g: I have a entity
class, Foo, with two fields: id, description. Let's say I would like
to have the values 1,bar inserted. is there some way to do it into
the entity class or onther place automaticly.
Not directly in the entity class IMHO.
You can create a JUnit Testcase, that creates the corresponding entity
with your properties and persist ist. Depending on your persistence unit
running in container or non-container mode you have to create your
entity manager. An example code for non-container mode. Replace punit
with your name of the persistence unit.
EntityManagerFactory factory = Persistence.createEntityManagerFactory("punit");
EntityManager em = factory.createEntityManager();
Foo foo = new Foo();
foo.setId(1);
foo.setDescription("bar");
em.persist(foo);
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