Examples with Transaction com.haulmont.cuba.core.Transaction used on opensource projects

Example 56 with Transaction

use of com.haulmont.cuba.core.Transaction in project cuba by cuba-platform.

the class EntityManagerContextTest method testCommitRetaining.

@Test
public void testCommitRetaining() throws Exception {
    Transaction tx = cont.persistence().createTransaction();
    try {
        cont.persistence().getEntityManager();
        EntityManagerContext ctx = cont.persistence().getEntityManagerContext();
        ctx.setAttribute(ATTR, obj1);
        ctx = cont.persistence().getEntityManagerContext();
        assertTrue(ctx.getAttribute(ATTR) == obj1);
        tx.commitRetaining();
        cont.persistence().getEntityManager();
        ctx = cont.persistence().getEntityManagerContext();
        assertNull(ctx.getAttribute(ATTR));
        ctx.setAttribute(ATTR, obj2);
        tx.commit();
    } finally {
        tx.end();
    }
    tx = cont.persistence().createTransaction();
    try {
        cont.persistence().getEntityManager();
        EntityManagerContext ctx = cont.persistence().getEntityManagerContext();
        Object obj = ctx.getAttribute(ATTR);
        assertNull(obj);
        tx.commit();
    } finally {
        tx.end();
    }
}

Example 57 with Transaction

use of com.haulmont.cuba.core.Transaction in project cuba by cuba-platform.

the class EntityManagerContextTest method test.

@Test
public void test() throws Exception {
    Transaction tx = cont.persistence().createTransaction();
    try {
        cont.persistence().getEntityManager();
        EntityManagerContext ctx = cont.persistence().getEntityManagerContext();
        ctx.setAttribute(ATTR, obj1);
        cont.persistence().getEntityManager();
        ctx = cont.persistence().getEntityManagerContext();
        assertTrue(ctx.getAttribute(ATTR) == obj1);
        tx.commit();
    } finally {
        tx.end();
    }
    tx = cont.persistence().createTransaction();
    try {
        cont.persistence().getEntityManager();
        EntityManagerContext ctx = cont.persistence().getEntityManagerContext();
        Object obj = ctx.getAttribute(ATTR);
        assertNull(obj);
        tx.commit();
    } finally {
        tx.end();
    }
}

Example 58 with Transaction

use of com.haulmont.cuba.core.Transaction in project cuba by cuba-platform.

the class EntityFetcher method fetchReloaded.

protected void fetchReloaded(Entity entity, View view, Map<Instance, Set<View>> visited, boolean optimizeForDetached, Consumer<Entity> managedEntityConsumer) {
    if (!optimizeForDetached || needReloading(entity, view)) {
        if (log.isTraceEnabled()) {
            log.trace("Object " + entity + " is detached, loading it");
        }
        String storeName = metadata.getTools().getStoreName(entity.getMetaClass());
        if (storeName != null) {
            try (Transaction tx = persistence.getTransaction(storeName)) {
                EntityManager em = persistence.getEntityManager(storeName);
                // noinspection unchecked
                Entity managed = em.find(entity.getClass(), entity.getId());
                if (managed != null) {
                    // the instance here can be null if it has been deleted
                    managedEntityConsumer.accept(managed);
                    fetch(managed, view, visited, optimizeForDetached);
                }
                tx.commit();
            }
        }
    }
}

Example 59 with Transaction

use of com.haulmont.cuba.core.Transaction in project cuba by cuba-platform.

the class FileLoaderImpl method checkIfFileDescriptorExists.

protected void checkIfFileDescriptorExists(FileDescriptor fd) throws FileStorageException {
    try (Transaction tx = persistence.getTransaction()) {
        FileDescriptor existingFile = persistence.getEntityManager().find(FileDescriptor.class, fd.getId());
        if (existingFile == null || entityStates.isDeleted(existingFile)) {
            throw new FileStorageException(FileStorageException.Type.FILE_NOT_FOUND, fd.getName());
        }
        tx.commit();
    }
}

Example 60 with Transaction

use of com.haulmont.cuba.core.Transaction in project cuba by cuba-platform.

the class Emailer method migrateAttachmentsBatch.

protected int migrateAttachmentsBatch() {
    List<SendingAttachment> resultList;
    Transaction tx = persistence.createTransaction();
    try {
        EntityManager em = persistence.getEntityManager();
        String qstr = "select a from sys$SendingAttachment a where a.content is not null";
        TypedQuery<SendingAttachment> query = em.createQuery(qstr, SendingAttachment.class);
        query.setMaxResults(50);
        query.setViewName(View.MINIMAL);
        resultList = query.getResultList();
        tx.commit();
    } finally {
        tx.end();
    }
    if (!resultList.isEmpty()) {
        emailer.migrateAttachmentsToFileStorage(resultList);
    }
    return resultList.size();
}