used: hibernate 3.6.10, maven 2, postgres 9. I have code that must work but it doesn't. before I used hibernate 3.6.2 and got really frustrated error: java.lang.ClassCastException: org.hibernate.action.DelayedPostInsertIdentifier cannot be cast to java.lang.Long
But after updating to 3.6.10 error became more sensible: javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist
Code is a standart domain model:
Entity:
@Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
@Entity
@Table(schema = "simulators", name = "mySimulator_card")
public class MySimulatorCard {
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "account_number", unique = true, nullable = false)
private String accountNumber;
etc...
DAO:
public abstract class AbstractDao<E, PK extends Serializable> implements Dao<E, PK> {
private EntityManager entityManager;
public EntityManager getEntityManager() {
return entityManager;
}
@PersistenceContext(unitName = "MySimulator")
public void setEntityManager(EntityManager entityManager) {
this.entityManager = entityManager;
}
public abstract Class<E> getEntityClass();
@Override
public void persist(E e) {
getEntityManager().persist(e);//<-- some thing wroooong
}
etc...
And according table:
CREATE TABLE simulators.mySimulator_card
(
id bigserial NOT NULL,
account_number character varying(255) NOT NULL,
etc...
CONSTRAINT mySimulator_card_pk PRIMARY KEY (id),
CONSTRAINT mySimulator_card_account_fk FOREIGN KEY (account_id)
REFERENCES simulators.mySimulator_account (id) MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION,
CONSTRAINT mySimulator_card_currency_fk FOREIGN KEY (currency_id)
REFERENCES simulators.mySimulator_currency ("name") MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION,
CONSTRAINT mySimulator_card_product_fk FOREIGN KEY (product_id)
REFERENCES simulators.mySimulator_product (id) MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION,
CONSTRAINT mySimulator_account_account_number_uq UNIQUE (account_number),
CONSTRAINT mySimulator_card_san_uq UNIQUE (san)
)
WITH (
OIDS=FALSE
);
ALTER TABLE simulators.mySimulator_card OWNER TO functional;
I suppose something wrong with context in functional tests because production is work fine. Also when I tried to use this trick to get session from entityManager:
EntityManager em = getEntityManager();
HibernateEntityManager hem = em.unwrap(HibernateEntityManager.class);
Session session = hem.getSession();
session.persist(e);
I've got the error:
java.lang.IllegalStateException: No transactional EntityManager available
Now sure that it is a good idea to post all test config because there are a lot of workaround stuff. Any idea?
This error is raised among others when you try to persist a value in a column that is autogenerated.
Check if you're passing a value to persist for the column id, which you've marked as:
@GeneratedValue(strategy = GenerationType.IDENTITY)
Regards.
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