Doh!!! Thanks for clarifying.
On Wed, 2011-02-09 at 15:13 +0000, Mark Struberg wrote:
> Hi Joel!
>
> You might look at @PreUpdate.
>
> @PrePersist only gets called before a em.persist() performs the sql INSERT
> statement. @PreUpdate will get called before any sql UPDATE to the entity.
>
> LieGrue,
> strub
>
> --- On Wed, 2/9/11, Joel Halbert <[email protected]> wrote:
>
> > From: Joel Halbert <[email protected]>
> > Subject: Does PrePersist work when merging entities? (2.0.1)
> > To: "[email protected]" <[email protected]>
> > Date: Wednesday, February 9, 2011, 3:06 PM
> > Hi Folks,
> >
> > Are there any known issues around using @PrePersist
> > on merge with
> > 2.0,.1?
> > My Entities use Property access.
> >
> > @PostLoad method is always called when loading entities.
> > @PrePersist is called on persist, but never on merge.
> >
> > I'm tried using both runtime (agent) and compile time
> > enhancement.
> >
> > Here's a sample Entity that I used for testing this.
> >
> >
> >
> > import javax.persistence.*;
> >
> > @Entity
> > @Access(AccessType.PROPERTY)
> > @Table(name="TEST")
> > public class Test {
> >
> > private int id;
> > private String name;
> >
> > @Id
> > @GeneratedValue(strategy =
> > GenerationType.IDENTITY)
> > @Column(name="ID")
> > public int getId() {
> > return id;
> > }
> > public void setId(int id) {
> > this.id = id;
> > }
> >
> > @Column(name="NAME")
> > public String getName() {
> > return name;
> > }
> > public void setName(String name) {
> > this.name = name;
> > }
> >
> > @PrePersist
> > void populateDBFields(){
> >
> > System.out.println("Hello, I happen prePersist!");
> > }
> >
> > @PostLoad
> > void populateTransientFields(){
> >
> > System.out.println("Hello, I happen postLoad!");
> > }
> >
> > public static void main(String[] args)
> > throws Exception {
> > EntityManagerFactory
> > factory = Persistence.createEntityManagerFactory(
> >
> > "su3", null);
> > EntityManager em =
> > factory.createEntityManager();
> >
> > // Test t = new
> > Test();
> > //
> > t.setName("name");
> > // em.persist(t);
> >
> > Test t =
> > em.find(Test.class, 1);
> > t.setName("new
> > name");
> > em.merge(t);
> >
> >
> > em.getTransaction().commit();
> > em.close();
> >
> > }
> > }
> >
> >
> >
> >
> > Any clues?
> >
> > Joel
> >
>
>
>
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