How do I target an alias from a restriction, with the QueryOver api?

As far as I know, the QueryOver api does not allow you reference an alias by name, but rather you use a typed object. How can I add a restriction to my query that targets the alias?

For example, I would like to accomplish something similar to the following:

var query = session.QueryOver<Person>().JoinQueryOver(x => x.Dogs, () => dogAlias);

return query.Where(Restrictions.Disjunction()
                       .Add(Restrictions.Like("Name", searchQuery, MatchMode.Anywhere))
                       .Add(Restrictions.Like("dogAlias.Name", searchQuery, MatchMode.Anywhere)));