eclipselink

I am implementing an online shop. I have the following code for saving an order: @Service @Transactional public class OrderServiceImpl extends GenericServiceImpl<Order, Integer> implements OrderService { @Inject private ItemRepository itemRepository; @Override public void saveOrder(Order order) { this.updateItemsAccordingToOrderedQuantities(order); repository.save(order); } private void updateItemsAccordingToOrderedQuantities(Order order) { List<OrderedItem> orderedItems = order.getOrderedItems(); for (OrderedItem orderedItem : orderedItems) { // fetch from database Item item = itemRepository

Is there a way to check if the current transaction is committed or not in JPA entity listeners something like the following? @ApplicationScoped public class EntityListener { @Inject private Event<EntityEvent> event; @Inject private EntityManager entityManager; @Resource private UserTransaction userTransaction; @PostPersist @PostUpdate @PostRemove public void onChange(Entity entity) { // This is only a piece of pseudo code. if (userTransaction.isComitted()) { // Do something. } } } Entity listeners in JPA 2.1 are treated as CDI beans that depend upon CDI injection(s) and a transaction context

I'm using JPA / EclipseLink 2.5.2 and want to add an additional where clause to my ManyToMany Mapping. The SQL Code would look like this: SELECT * FROM Friends f INNER JOIN User u ON f.friend_id = u.id WHERE f.verified=1; So I managed to do the JoinMapping with: @Entity @NamedQueries({ @NamedQuery(name="User.findAll", query="SELECT u FROM User u"), @NamedQuery(name="User.login", query="SELECT a FROM User a WHERE a.username = :name and a.password = :password"), @NamedQuery(name="User.findId", query="SELECT a FROM User a WHERE a.id = :id"), @NamedQuery(name="User.findName", query="SELECT a FROM

'Flex fields' is a term for altering a table at the customer site to add extra columns to a table to hold custom pieces of information about that table's entity. I was wondering if anyone has dealt with supporting this mechanism with jpa, specifically eclipselink. We wish to do this because we allow filtering of the base rows based on values in these customer specified fields, and having these fields in an association table causes multiple alias joins to this auxilliary table. An obvious approach (at least it would seem to me) would be to define an aspect(s) that injects the new fields into

I have the following JPQL in ProductList Entity class which executes as expected. select DISTINCT new foo.bar.ProductListDTO(p.prodId, " + CASE WHEN (p.prodId = 'ZCX') THEN CONCAT(p.prodDesc, ' - ', e.userId) ELSE p.prodDesc END) from ProductList p LEFT JOIN p.productCatalogueList c where c.userId='ZAM' ProductListDTO class public ProductListDTO(String prodId, String prodDesc, String userId) { this.prodId = prodId; this.prodName = prodDesc; this.userId = userId; } What I would like to achieve is add ORDER BY to the query. When p.prodDesc is added to ORDER BY clause, I am getting error not a