How to use Hibernate :

Question

i am new to hibernate. i need to understand the following questions :

(1) What is subselect in hibernate mapping?

(2) How to map subselect in hbm file?

Answer 1

Actually you don't need to model subselects, you can create queries that uses them. Check: http://docs.jboss.org/hibernate/core/3.3/reference/en/html/queryhql.html#queryhql-subqueries

(Edit: example from the link above)

String hql = "from Cat as fatcat "+
             "where fatcat.weight > ( "+
             "  select avg(cat.weight) from DomesticCat cat "+
             ")";
List fatcats = session.createQuery(hql);