/** This test method demonstrates using date functions. */
@Test
public void testDates() {
log.info("*** testDates() ***");
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery<Sale> qdef = cb.createQuery(Sale.class);
Root<Sale> s = qdef.from(Sale.class);
qdef.select(s);
// select s from Sale s
// where s.date < CURRENT_DATE
qdef.where(cb.lessThan(s.<Date>get("date"), cb.currentDate()));
int rows = executeQuery(qdef).size();
assertEquals("unexpected number of rows", 2, rows);
// select s from Sale s
// where s.date = CURRENT_DATE
qdef.where(cb.equal(s.<Date>get("date"), cb.currentDate()));
rows = executeQuery(qdef).size();
assertEquals("unexpected number of rows", 0, rows);
// no bulk query capability in Criteria API
rows = em.createQuery("update Sale s " + "set s.date = CURRENT_DATE").executeUpdate();
assertEquals("unexpected number of rows", 2, rows);
em.getTransaction().commit();
em.clear(); // remove stale objects in cache
// select s from Sale s
// where s.date = CURRENT_DATE
qdef.where(cb.equal(s.<Date>get("date"), cb.currentDate()));
rows = executeQuery(qdef).size();
assertEquals("unexpected number of rows", 2, rows);
}
public List<SupplyOrderInformation> makeSupplyOrderBasedOnStockpile(int stockpile) {
List<SupplyOrderInformation> result = new ArrayList<>();
SupplyOrderHeaderManager supplyOrderHeaderManager = new SupplyOrderHeaderManager();
SupplyOrderLineManager supplyOrderLineManager = new SupplyOrderLineManager();
Date currentDate = new Date(System.currentTimeMillis());
EntityManager entityManager = Utilities.getEntityManagerFactory().createEntityManager();
CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
CriteriaQuery<BookPresentation> criteriaQueryBookPresentation =
criteriaBuilder.createQuery(BookPresentation.class);
Root<BookPresentation> rootBookPresentation =
criteriaQueryBookPresentation.from(BookPresentation.class);
Join<Collection, PublishingHouse> joinCollectionPublishingHouse =
rootBookPresentation
.join(BookPresentation_.book)
.join(Book_.collection)
.join(Collection_.publishingHouse);
criteriaQueryBookPresentation.select(rootBookPresentation);
criteriaQueryBookPresentation.where(
criteriaBuilder.lt(rootBookPresentation.get(BookPresentation_.stockpile), stockpile));
List<Order> orderList = new ArrayList<>();
orderList.add(criteriaBuilder.asc(joinCollectionPublishingHouse.get(PublishingHouse_.id)));
orderList.add(criteriaBuilder.asc(rootBookPresentation.get(BookPresentation_.id)));
criteriaQueryBookPresentation.orderBy(orderList);
TypedQuery<BookPresentation> typedQueryBookPresentation =
entityManager.createQuery(criteriaQueryBookPresentation);
List<BookPresentation> bookPresentationList = typedQueryBookPresentation.getResultList();
PublishingHouse currentPublishingHouse = null;
SupplyOrderHeader currentSupplyOrderHeader = null;
for (BookPresentation bookPresentation : bookPresentationList) {
PublishingHouse publishingHouse =
bookPresentation.getBook().getCollection().getPublishingHouse();
if (currentPublishingHouse == null || !currentPublishingHouse.equals(publishingHouse)) {
SupplyOrderHeader supplyOrderHeader = new SupplyOrderHeader();
supplyOrderHeader.setIdentificationNumber(Utilities.generateIdentificationNumber(3, 6));
supplyOrderHeader.setIssueDate(currentDate);
supplyOrderHeader.setState(Constants.SENT_STATUS);
supplyOrderHeader.setPublishingHouse(publishingHouse);
supplyOrderHeaderManager.create(supplyOrderHeader);
currentPublishingHouse = publishingHouse;
currentSupplyOrderHeader = supplyOrderHeader;
}
SupplyOrderLine supplyOrderLine = new SupplyOrderLine();
supplyOrderLine.setBookPresentation(bookPresentation);
supplyOrderLine.setQuantity(stockpile - bookPresentation.getStockpile());
supplyOrderLine.setSupplyOrderHeader(currentSupplyOrderHeader);
supplyOrderLineManager.create(supplyOrderLine);
}
entityManager.close();
entityManager = Utilities.getEntityManagerFactory().createEntityManager();
criteriaBuilder = entityManager.getCriteriaBuilder();
CriteriaQuery<SupplyOrderLine> criteriaQuerySupplyOrderLine =
criteriaBuilder.createQuery(SupplyOrderLine.class);
Root<SupplyOrderLine> rootSupplyOrderLine =
criteriaQuerySupplyOrderLine.from(SupplyOrderLine.class);
Join<SupplyOrderLine, SupplyOrderHeader> joinSupplyOrder =
rootSupplyOrderLine.join(SupplyOrderLine_.supplyOrderHeader);
criteriaQuerySupplyOrderLine.select(rootSupplyOrderLine);
criteriaQuerySupplyOrderLine.where(
criteriaBuilder.equal(
joinSupplyOrder.get(SupplyOrderHeader_.issueDate), criteriaBuilder.currentDate()));
criteriaQuerySupplyOrderLine.orderBy(
criteriaBuilder.asc(joinSupplyOrder.get(SupplyOrderHeader_.id)),
criteriaBuilder.asc(rootSupplyOrderLine.get(SupplyOrderLine_.id)));
TypedQuery<SupplyOrderLine> typedQuerySupplyOrderLine =
entityManager.createQuery(criteriaQuerySupplyOrderLine);
List<SupplyOrderLine> supplyOrderLines = typedQuerySupplyOrderLine.getResultList();
for (SupplyOrderLine supplyOrderLine : supplyOrderLines) {
SupplyOrderInformation supplyOrderInformation = new SupplyOrderInformation();
supplyOrderInformation.setPublishingHouseId(
supplyOrderLine.getSupplyOrderHeader().getPublishingHouse().getId());
supplyOrderInformation.setBookPresentationId(supplyOrderLine.getBookPresentation().getId());
supplyOrderInformation.setQuantity(supplyOrderLine.getQuantity());
result.add(supplyOrderInformation);
}
entityManager.close();
return result;
}
