How does one perform an inner join between two tables in Hibernate using (say) their common column?

Well you can use HQL to do a inner join -

from Parent inner join Parent.child

Hi - thanks for the quick response.

The two tables (read objects) do not have an association between them.
Hence I cannot do a join based on a 'child' object.

These are two non-associated classes that I'd like to join. My purpose is to retrieve records from one table based on common data between the two tables.

Any more inputs will be appreciated! Thanks.

Something like this will work

List allObjs = session.createQuery("from Test1 t1, Test2 t2 " +
"where t1.col1 = t2.col1").list();

assuming Test1 and Test2 are two classes which have col1 to be same between them. They dont have to be the primary key either. Note that the above will return objects from both the classes, You can trim them accordingly.