private DetachedCriteria subquery(SubqueryExpression sqex) {
String entityName = sqex.getTargetPropertyName();
String alias = Texts.tos(sqex.getAlias(), null);
DetachedCriteria dtc;
if (alias != null) {
dtc = DetachedCriteria.forEntityName(entityName, alias);
} else {
dtc = DetachedCriteria.forEntityName(entityName);
}
if (log.isTraceEnabled()) {
log.trace(
String.format(
"Creating detached criteria for entity %s of type %s as %s",
entityName, sqex.getType(), sqex.getValue()));
}
if (sqex.getValue() instanceof Restrictions) {
Restrictions restr = (Restrictions) sqex.getValue();
dtc.setProjection(Projections.id());
dtc.add(parseRestriction(restr));
} else if (sqex.getValue() instanceof Where) {
dtc.setProjection(Projections.id());
DetachedWhereParser whp = new DetachedWhereParser();
whp.parse((Where) sqex.getValue(), dtc);
} else {
throw new IllegalStateException(
String.format(
"Subquery must be instance of restrictions or Where, but is %s",
sqex.getValue().getClass().getName()));
}
return dtc;
}
public DetachedCriteriaHibernateImpl(String entityName, String alias) {
delegate = org.hibernate.criterion.DetachedCriteria.forEntityName(entityName, alias);
}