If you're not updating or creating new rows in the view, you can simply map an entity to it. That's usually the easiest thing to do.
Here's some info from Hibernate.org:
Does Hibernate support database views?
Of course. From the point of view of Hibernate, a view is just like any other table (except that you might not be able to update or insert to a view). You can easily map a class to a view by specifying table="view_name".
In Hibernate3, you may even map an entity class to a SQL query result set using the <subselect> mapping element. This is useful if you are unable to define new views in your database.
Using Hibernate and Database Views