I have a class Foo with one-to-many mapping relationship to another class Bar, which has a "flag" column with boolean type. Now is there a way to build a one-to-many mapping b/w Foo and Bar so it only returns the Bar objects with a true flag value?

I could do this by executing a criteria query but wonder if I can do it with Hibernate mapping. Thanks!

different ways to do it.

use the where attribute, use formula as a join column, use subselect.