how can I change Interger type, which is declared in the hibernate mapping, to String type.

My program send integer values, and they are initialized to String.
How every HQL gives error message: Type Casting

This is my code

Query query = session
.createQuery("delete from Post p where p.id IN(:ids)");
query.setParameter("ids", ids);
query.executeUpdate();

ids : type String

such as ids="1,2"


p.id: type Integer and declared in the map