[jira] [Created] (DELTASPIKE-900) ResourceLocalTransactionStrategy not working with multiple EntityManagers

["Johannes Testori (JIRA)" <ji...@apache.org>]

Johannes Testori created DELTASPIKE-900:
-------------------------------------------

             Summary: ResourceLocalTransactionStrategy not working with multiple EntityManagers
                 Key: DELTASPIKE-900
                 URL: https://issues.apache.org/jira/browse/DELTASPIKE-900
             Project: DeltaSpike
          Issue Type: Bug
          Components: JPA-Module
    Affects Versions: 1.3.0, 1.2.1
            Reporter: Johannes Testori


We are using CDI-ApplicationScoped services in a batch program with CdiControl. We started using multiple qualified EntityManagers in a single service annotated with @Transactional and encountered the problem that database changes are not committed. After some debugging we found the problem in the "execute"-method in ResourceLocalTransactionStrategy.

for (Class<? extends Annotation> emQualifier : emQualifiers)
{
    EntityManager entityManager = resolveEntityManagerForQualifier(emQualifier);

    EntityManagerEntry entityManagerEntry = createEntityManagerEntry(entityManager, emQualifier);
    transactionBeanStorage.storeUsedEntityManager(entityManagerEntry);

    EntityTransaction transaction = getTransaction(entityManagerEntry);

    if (!transaction.isActive())
    {
        beforeBegin(invocationContext, entityManagerEntry, transaction);
        transaction.begin();
    }
    else if (isOutermostInterceptor)
    {
        outermostTransactionAlreadyExisted = true;
    }

    //don't move it before EntityTransaction#begin() and invoke it in any case
    beforeProceed(invocationContext, entityManagerEntry, transaction);
}

A transaction is created for the first EntityManager. But since the same transaction is assigned to the other EntityManagers, "outermostTransactionAlreadyExisted" is set to true. This is the cause for the transaction not being committed afterwards:

if (isOutermostInterceptor)
{
    if (!outermostTransactionAlreadyExisted)
    {
        // We only commit transactions we opened ourselfs.
        // If the transaction got opened outside of our interceptor chain
        // we must not handle it.
        // This e.g. happens if a Stateless EJB invokes a Transactional CDI bean
        // which uses the BeanManagedUserTransactionStrategy.

We've seen this problem in version 1.2.1 and 1.3.0. (didn't try other versions).



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