Hi I have quiry on hibernate mapping in generating hql for the below scenario

I have a ClassA (TableA) which has 1-M mapping to ClassB(TableB)

In ClassA I have collection of ClassB (1-M mapping)

When I run the hql based on the search criteria on ClassA. It is working fine and I am getting list of ClassA, with each ClassA instance having collection of ClassB

select * from ClassA a where a.col1="A" and a.col2="B"

Now the issue is when I want to add seach condition for ClassB. How to get instance of ClassB to make a seach hql? expected results should be "list of ClassA with each CLassA instance having collection of ClassB"

I tries the below hql,
select * from ClassA a join ClassB b where a.col1="A" and b.col1="B"

But I am not getting expected results. Instead I am getting List of List. Where each list has ClassA and ClassB. Instead of collection in Class A, I am getting one List for reach record in ClassB

Some pls assist me on this.

Thanks!