https://github.com/scottmarlow/hibernate-orm/tree/refreshEntityNotFoundException contains the following test case that expects a EntityNotFoundException to be thrown from refresh if the entity is no longer in the database.
{code}
@Test
public void testEntityNotFoundException() throws Exception {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Wallet w = new Wallet();
w.setBrand("Lacoste");
w.setModel("Minimic");
w.setSerial("0324");
em.persist(w);
Wallet wallet = em.find( Wallet.class, w.getSerial() );
em.createNativeQuery("delete from Wallet").executeUpdate();
try {
em.refresh(wallet);
} catch (EntityNotFoundException enfe) {
// success
if (em.getTransaction() != null) {
em.getTransaction().rollback();
}
em.close();
return;
}
try {
em.getTransaction().commit();
fail("Should have raised an EntityNotFoundException");
} catch (PersistenceException pe) {
} finally {
em.close();
}
}
{code}
The following code change works around the issue:
{code}
@Test
public void testEntityNotFoundException() throws Exception {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Wallet w = new Wallet();
w.setBrand("Lacoste");
w.setModel("Minimic");
w.setSerial("0324");
em.persist(w);
/********
End the txn and start a new one, to work around the issue.
*/
em.getTransaction().commit();
em.getTransaction().begin();
Wallet wallet = em.find( Wallet.class, w.getSerial() );
em.createNativeQuery("delete from Wallet").executeUpdate();
try {
em.refresh(wallet);
} catch (EntityNotFoundException enfe) {
// success
if (em.getTransaction() != null) {
em.getTransaction().rollback();
}
em.close();
return;
}
try {
em.getTransaction().commit();
fail("Should have raised an EntityNotFoundException");
} catch (PersistenceException pe) {
} finally {
em.close();
}
}
{code}
Javadoc description of EntityManager.refresh(Object)
{code}
/**
* Refresh the state of the instance from the database,
* overwriting changes made to the entity, if any.
* @param entity
* @throws IllegalArgumentException if the instance is not
*
an entity or the entity is not managed
* @throws TransactionRequiredException if there is no
*
transaction when invoked on a container-managed
*
entity manager that is of type
*
PersistenceContextType.TRANSACTION.
* @throws EntityNotFoundException if the entity no longer
*
exists in the database
*/
public void refresh(Object entity);
{code}
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