// Ensure close is called on the stateful session correctly.
@Test
public void testStatefulClose() {
SessionFactory sessionFactory = createMock(SessionFactory.class);
Session session = createMock(Session.class);
Query scrollableResults = createNiceMock(Query.class);
HibernateCursorItemReader<Foo> itemReader = new HibernateCursorItemReader<Foo>();
itemReader.setSessionFactory(sessionFactory);
itemReader.setQueryString("testQuery");
itemReader.setUseStatelessSession(false);
expect(sessionFactory.openSession()).andReturn(session);
expect(session.createQuery("testQuery")).andReturn(scrollableResults);
expect(scrollableResults.setFetchSize(0)).andReturn(scrollableResults);
expect(session.close()).andReturn(null);
replay(sessionFactory);
replay(session);
replay(scrollableResults);
itemReader.open(new ExecutionContext());
itemReader.close();
verify(sessionFactory);
verify(session);
}
@Test
@TestForIssue(jiraKey = "HHH-3694")
public void testResultTransformerIsAppliedToScrollableResults() throws Exception {
Session s = openSession();
Transaction tx = s.beginTransaction();
PartnerA a = new PartnerA();
a.setName("Partner A");
PartnerB b = new PartnerB();
b.setName("Partner B");
Contract obj1 = new Contract();
obj1.setName("Contract");
obj1.setA(a);
obj1.setB(b);
s.save(a);
s.save(b);
s.save(obj1);
tx.commit();
s.close();
s = openSession();
Query q = s.getNamedQuery(Contract.class.getName() + ".testQuery");
q.setFetchSize(100);
q.setResultTransformer(
new ResultTransformer() {
private static final long serialVersionUID = -5815434828170704822L;
public Object transformTuple(Object[] arg0, String[] arg1) {
// return only the PartnerA object from the query
return arg0[1];
}
@SuppressWarnings("unchecked")
public List transformList(List arg0) {
return arg0;
}
});
ScrollableResults sr = q.scroll();
// HANA supports only ResultSet.TYPE_FORWARD_ONLY and
// does not support java.sql.ResultSet.first()
if (getDialect() instanceof AbstractHANADialect) {
sr.next();
} else {
sr.first();
}
Object[] row = sr.get();
assertEquals(1, row.length);
Object obj = row[0];
assertTrue(obj instanceof PartnerA);
PartnerA obj2 = (PartnerA) obj;
assertEquals("Partner A", obj2.getName());
s.close();
}
private Query createQuery(
String queryString, @Nullable QueryModifiers modifiers, boolean forCount) {
Query query = session.createQuery(queryString);
HibernateUtil.setConstants(query, getConstants(), getMetadata().getParams());
if (fetchSize > 0) {
query.setFetchSize(fetchSize);
}
if (timeout > 0) {
query.setTimeout(timeout);
}
if (cacheable != null) {
query.setCacheable(cacheable);
}
if (cacheRegion != null) {
query.setCacheRegion(cacheRegion);
}
if (comment != null) {
query.setComment(comment);
}
if (readOnly != null) {
query.setReadOnly(readOnly);
}
for (Map.Entry<Path<?>, LockMode> entry : lockModes.entrySet()) {
query.setLockMode(entry.getKey().toString(), entry.getValue());
}
if (flushMode != null) {
query.setFlushMode(flushMode);
}
if (modifiers != null && modifiers.isRestricting()) {
if (modifiers.getLimit() != null) {
query.setMaxResults(modifiers.getLimit().intValue());
}
if (modifiers.getOffset() != null) {
query.setFirstResult(modifiers.getOffset().intValue());
}
}
// set transformer, if necessary
List<? extends Expression<?>> projection = getMetadata().getProjection();
if (projection.size() == 1 && !forCount) {
Expression<?> expr = projection.get(0);
if (expr instanceof FactoryExpression<?>) {
query.setResultTransformer(
new FactoryExpressionTransformer((FactoryExpression<?>) projection.get(0)));
}
} else if (!forCount) {
FactoryExpression<?> proj = FactoryExpressionUtils.wrap(projection);
if (proj != null) {
query.setResultTransformer(new FactoryExpressionTransformer(proj));
}
}
return query;
}
@Override
public void open() {
currentRecordNumber = 0;
Query hibernateQuery = session.createQuery(query);
hibernateQuery.setReadOnly(true);
if (maxResults >= 1) {
hibernateQuery.setMaxResults(maxResults);
}
if (fetchSize >= 1) {
hibernateQuery.setFetchSize(fetchSize);
}
scrollableResults = hibernateQuery.scroll(ScrollMode.FORWARD_ONLY);
}
/**
* Execute the selection query in the database
*
* @return The query result. Each Object is a cell content.
* <p>The cell contents use database types (date,int,string...), keep in mind in case of
* future conversions/castings.
* @throws InterruptedException
*/
@SuppressWarnings("unchecked")
public List<List<Object>> executeQuery() throws InterruptedException {
List<List<Object>> rowsList = new ArrayList<List<Object>>();
Query query;
if (!session.isConnected()) {
resetConnection();
}
if (sqlSourceHelper.isCustomQuerySet()) {
query = session.createSQLQuery(sqlSourceHelper.buildQuery());
if (sqlSourceHelper.getMaxRows() != 0) {
query = query.setMaxResults(sqlSourceHelper.getMaxRows());
}
} else {
query =
session
.createSQLQuery(sqlSourceHelper.getQuery())
.setFirstResult(Integer.parseInt(sqlSourceHelper.getCurrentIndex()));
if (sqlSourceHelper.getMaxRows() != 0) {
query = query.setMaxResults(sqlSourceHelper.getMaxRows());
}
}
try {
rowsList =
query
.setFetchSize(sqlSourceHelper.getMaxRows())
.setResultTransformer(Transformers.TO_LIST)
.list();
} catch (Exception e) {
resetConnection();
}
if (!rowsList.isEmpty()) {
if (sqlSourceHelper.isCustomQuerySet()) {
sqlSourceHelper.setCurrentIndex(rowsList.get(rowsList.size() - 1).get(0).toString());
} else {
sqlSourceHelper.setCurrentIndex(
Integer.toString(
(Integer.parseInt(sqlSourceHelper.getCurrentIndex()) + rowsList.size())));
}
}
return rowsList;
}
@Override
public List<ThesaurusConcept> getConceptsWoNotes(String idThesaurus, int startIndex, int limit) {
Query query =
getCurrentSession()
.createSQLQuery(
"select c.* "
+ "from thesaurus_concept c "
+ "left join note n on c.identifier = n.conceptid "
+ "where c.thesaurusid=:pthesaurusid"
+ " and n.identifier is null")
.addEntity(ThesaurusConcept.class);
query.setParameter("pthesaurusid", idThesaurus);
query.setFirstResult(startIndex);
query.setFetchSize(limit);
query.setMaxResults(limit);
return (List<ThesaurusConcept>) query.list();
}
/**
* Creates the Hibernate query object.
*
* <p>If the value of the {@link
* JRHibernateQueryExecuterFactory#PARAMETER_HIBERNATE_FILTER_COLLECTION
* PARAMETER_HIBERNATE_FILTER_COLLECTION} is not null, then a filter query is created using the
* value of the parameter as the collection.
*
* @param queryString the query string
*/
protected synchronized void createQuery(String queryString) {
if (log.isDebugEnabled()) {
log.debug("HQL query: " + queryString);
}
Object filterCollection =
getParameterValue(JRHibernateQueryExecuterFactory.PARAMETER_HIBERNATE_FILTER_COLLECTION);
if (filterCollection == null) {
query = session.createQuery(queryString);
} else {
query = session.createFilter(filterCollection, queryString);
}
query.setReadOnly(true);
int fetchSize =
JRProperties.getIntegerProperty(
dataset, JRJdbcQueryExecuterFactory.PROPERTY_JDBC_FETCH_SIZE, 0);
if (fetchSize != 0) {
query.setFetchSize(fetchSize);
}
setParameters();
}
protected void applyFetchSize(int fetchSize) {
query.setFetchSize(fetchSize);
}
