@Override
public Object hydrate(
final ResultSet rs,
final String[] names,
final SessionImplementor session,
final Object owner)
throws HibernateException, SQLException {
int begin = 0;
boolean notNull = false;
Object[] values = new Object[propertySpan];
for (int i = 0; i < propertySpan; i++) {
int length = propertyTypes[i].getColumnSpan(session.getFactory());
String[] range = ArrayHelper.slice(names, begin, length); // cache this
Object val = propertyTypes[i].hydrate(rs, range, session, owner);
if (val == null) {
if (isKey) {
return null; // different nullability rules for pk/fk
}
} else {
notNull = true;
}
values[i] = val;
begin += length;
}
return notNull ? values : null;
}
/** For a composite element, add to a list of associations to be fetched by outerjoin */
private void walkCompositeElementTree(
final CompositeType compositeType,
final String[] cols,
final QueryableCollection persister,
final String alias,
final PropertyPath path,
final int currentDepth)
throws MappingException {
Type[] types = compositeType.getSubtypes();
String[] propertyNames = compositeType.getPropertyNames();
int begin = 0;
for (int i = 0; i < types.length; i++) {
int length = types[i].getColumnSpan(getFactory());
String[] lhsColumns = ArrayHelper.slice(cols, begin, length);
if (types[i].isAssociationType()) {
AssociationType associationType = (AssociationType) types[i];
// simple, because we can't have a one-to-one or a collection
// (or even a property-ref) in a composite-element:
String[] aliasedLhsColumns = StringHelper.qualify(alias, lhsColumns);
final PropertyPath subPath = path.append(propertyNames[i]);
final boolean[] propertyNullability = compositeType.getPropertyNullability();
final JoinType joinType =
getJoinType(
associationType,
compositeType.getFetchMode(i),
subPath,
persister.getTableName(),
lhsColumns,
propertyNullability == null || propertyNullability[i],
currentDepth,
compositeType.getCascadeStyle(i));
addAssociationToJoinTreeIfNecessary(
associationType, aliasedLhsColumns, alias, subPath, currentDepth, joinType);
} else if (types[i].isComponentType()) {
final PropertyPath subPath = path.append(propertyNames[i]);
walkCompositeElementTree(
(CompositeType) types[i], lhsColumns, persister, alias, subPath, currentDepth);
}
begin += length;
}
}
