Query by example with hibernate and spring

I did this to get hibernate's query by example to work from spring 

Bibliography  - David Carter - http://www.jroller.com/page/ddcarter/20051013 

import org.springframework.orm.hibernate3.HibernateCallback;
import org.hibernate.Session;
import org.hibernate.criterion.Example;
import org.hibernate.criterion.MatchMode;
import org.hibernate.HibernateException ;

public List getCats(final Cat cat) {
if (cat == null) {
return  getHibernateTemplate().find("from Cat");
} else {
// filter on properties set in the cat
HibernateCallback callback =  new HibernateCallback() {
public Object doInHibernate(Session session) throws HibernateException {
Example ex =  Example.create(cat).ignoreCase()
		.enableLike(MatchMode.ANYWHERE)
		.excludeZeroes();
return session.createCriteria(Cat.class).add(ex).list(); 
}
};
return (List) getHibernateTemplate().execute(callback);
}
}