public ScrollableResults scroll(
final QueryParameters queryParameters, final SessionImplementor session)
throws HibernateException {
HolderInstantiator hi =
HolderInstantiator.createClassicHolderInstantiator(
holderConstructor, queryParameters.getResultTransformer());
return scroll(queryParameters, returnTypes, hi, session);
}
@Override
protected List getResultList(List results, ResultTransformer resultTransformer)
throws QueryException {
// meant to handle dynamic instantiation queries...(Copy from QueryLoader)
HolderInstantiator holderInstantiator =
HolderInstantiator.getHolderInstantiator(
null, resultTransformer, getReturnAliasesForTransformer());
if (holderInstantiator.isRequired()) {
for (int i = 0; i < results.size(); i++) {
Object[] row = (Object[]) results.get(i);
Object result = holderInstantiator.instantiate(row);
results.set(i, result);
}
return resultTransformer.transformList(results);
} else {
return results;
}
}
/** Return the query results as an iterator */
public Iterator iterate(QueryParameters queryParameters, EventSource session)
throws HibernateException {
boolean stats = session.getFactory().getStatistics().isStatisticsEnabled();
long startTime = 0;
if (stats) startTime = System.currentTimeMillis();
try {
final List<AfterLoadAction> afterLoadActions = new ArrayList<AfterLoadAction>();
final ResultSet rs = executeQueryStatement(queryParameters, false, afterLoadActions, session);
final PreparedStatement st = (PreparedStatement) rs.getStatement();
HolderInstantiator hi =
HolderInstantiator.createClassicHolderInstantiator(
holderConstructor, queryParameters.getResultTransformer());
Iterator result =
new IteratorImpl(
rs,
st,
session,
queryParameters.isReadOnly(session),
returnTypes,
getColumnNames(),
hi);
if (stats) {
session
.getFactory()
.getStatisticsImplementor()
.queryExecuted("HQL: " + queryString, 0, System.currentTimeMillis() - startTime);
}
return result;
} catch (SQLException sqle) {
throw getFactory()
.getSQLExceptionHelper()
.convert(sqle, "could not execute query using iterate", getSQLString());
}
}
@Override
protected ResultTransformer resolveResultTransformer(ResultTransformer resultTransformer) {
return HolderInstantiator.resolveResultTransformer(null, resultTransformer);
}
@Override
protected ResultTransformer resolveResultTransformer(ResultTransformer resultTransformer) {
return HolderInstantiator.resolveClassicResultTransformer(holderConstructor, resultTransformer);
}