ation is used to refer to an attribute within
 an embedded attribute.  The value of each identifier used with the dot
 notation is the name of the respective embedded field or property.

 <p>The <code>OrderBy</code> annotation may be applied to an element
 collection. When <code>OrderBy</code> is applied to an element collection
 of basic type, the ordering is by value of the basic objects and the
 property or field name is not used. When specifying an ordering over
 an element collection of embeddable type