How can one delete NHibernate objects using a criteria?

Question

This must be a simple question. Given a criteria, how one deletes the entities satisfying the criteria?

The rationale:

HQL and NH criteria

Answer 1

I know this is an old question but for argument sake; if one uses repository pattern you can declare a delete method which does the following:

public void Delete(System.Linq.Expressions.Expression> predicate)
{
    var entities = _session.Query().Where(predicate);
    foreach (var entity in entities)
        _session.Delete(entity);
}

Note the code is using expressions in order for repository interface to be generic enough so you can also implement a for example Entity Framework repository.