Converting HQL 'in' restriction to Criteria

Question

I have a query like this:

Query query = session.createQuery("from table1 c where c.colummewhatever =:value and (select p.colummewhatever from table2 p where c.fkidcolumme=p.idcolumme) in (:listPColummewhatever) ");

Is there a way to translate the in restriction into Criteria ?

Answer 1

Using the Criteria API should be somethin like this...

DetachedCriteria dc = new DetachedCriteria.forClass(Table1.class,"c");
dc.createAlias("table2","p")
dc.add(Restrictions.in("p.colFoo",yourListFoo);
dc.add(Restrictions.eq("c.col",value);

List<Table1> = dc.getExecutableCriteria(session).list();

Answer 2

It seems to me that this query could be rewritten using a simple join:

from Table1 c inner join c.table2 p
where c.colummewhatever =:value 
and p.colummewhatever in (:listPColummewhatever)

Translating this HQL query in Criteria is now much easier.

This of course supposes that you have an association between Table1 and Table2, but you should have one.