I have this Data Model
public class CustomerModel{ @Column @Type(type=\"org.joda.time.contrib.hibernate.PersistentDateTime\") private DateTime members
You can do some workaround: create DateTime dayBegin and DateTime dayEnd which are e.g. 2013-07-04 00:00:00 and 2013-07-04 23:59:59 and fetch needed objects by query:
List findByMembershipBetween(DateTime dayBegin, DateTime dayEnd);