Hello.
I want to create index for foreign key cloumn at many-to-one, many-to-many association using xdoclet tag in Java Source file.

When I make uni-directional association from parent to child,
It didn't generate DDL what I want and I didn't find proper xdoclet.

But using bi-directional association, I can write xdoclet tag in child.hbm.xml and everything do well.

How can I create DDL what I want(index for foreign key cloumn)
without making bi-association between parent and child object.?